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BI DEEP Telecom

One-line summary: DEEP is the unified B2B telecom and ICT brand of POST Luxembourg Group, formed in 2024 from the merger of POST Telecom, EBRC, Elgon and Digora. It is the strongest fit for regulated, multi-site or enterprise buyers that want a one-stop-shop with Tier IV data centres, PFS status and Cisco or Microsoft choice; it is a weaker fit for SMEs that want public pricing, short contracts and fast self-service, where Mixvoip is usually the cleaner option.

Part 1 — Sales-ready intelligence

A. Sales battle card

Elevator pitch. DEEP is the state-owned, full-stack incumbent: fixed and mobile, internet, Cloud PBX (Cisco Webex or Microsoft Teams Direct Routing), data centres, cloud and cybersecurity, sold mostly as bundled "ConnectedOffice" packages on 24 or 36-month contracts. For a Luxembourg buyer it is the safe default, broad in scope but heavier on lock-in and lighter on price transparency than focused operators.
Top 3 differentiators in our favour (Mixvoip / pbx.lu lens).
  • Public, line-item pricing on the Mixvoip site, vs. quote-only ConnectedOffice and CloudPBX at DEEP.
  • Vendor-neutral SIP trunk certified with multiple PBX brands (3CX, Innovaphone, Wildix and others), vs. DEEP's heavy Cisco and Microsoft-centric stack.
  • Direct interconnects to all major Luxembourg operators and #2 national fixed-voice market share (per ILR data referenced by Mixvoip), giving fast porting and short escalation paths.
Top 3 differentiators in their favour (honest).
  • Owns the underlying fixed and mobile network, the country's largest fibre footprint and three Tier IV data centres in Luxembourg.
  • "Professionnel du Secteur Financier" (PFS) status under CSSF, plus ISO 9001/14001/20000/22301/27001/50001 and PCI DSS Level 1. Hard to beat for regulated buyers.
  • True single-vendor scope: telecom, ICT, cybersecurity, cloud, datacentre, mobile, even postal and banking through the wider POST Group.
Three pre-approved zingers.
  • "DEEP is excellent if you want one bill for everything; we are excellent if you want to see what you are actually paying for."
  • "DEEP's Cloud PBX is Cisco Webex with a Luxembourg SIM card on top; Voxbi is a Luxembourg PBX built for Luxembourg numbering and convergence from day one."
  • "If you sign a 36-month ConnectedOffice today, your next price negotiation is in 2029."
Three things never to say.
  • "DEEP is unreliable." It runs the national backbone and Tier IV sites; the prospect will stop listening.
  • "POST is state-owned so they are slow." Many enterprise and public-sector buyers see state ownership as a positive.
  • "Cisco Webex is bad." Webex is a credible enterprise platform; attack lock-in, bundling and pricing instead.
Walk-away signals.
  • The buyer is a CSSF-regulated entity that explicitly requires a PFS-status provider with a Luxembourg-resident DC and signed audit clauses; Mixvoip can still serve but will need a partner stack for PFS-grade managed services.
  • The buyer is already deep into POST mobile + POST fibre + EBRC colocation; the bundle discount and single SPOC may outweigh anything else.
  • The buyer's RFP mandates ISO 22301 business continuity certification end-to-end on the voice path. This is achievable elsewhere but adds friction.

B. Discovery question bank

Cost discovery.
  • What is the total monthly invoice from DEEP today, split across internet, telephony, mobile, security and licences?
  • How long is your current ConnectedOffice or CloudPBX commitment, and what is the next renewal date?
  • What price did you pay per user per month, and what does it include or exclude?
  • How are international calls and mobile-to-mobile traffic charged on your current plan?
  • What happens to your monthly fee if you reduce the number of users or numbers mid-contract?
Feature discovery.
  • Are you on Cisco Webex, on Microsoft Teams with Direct Routing, or on a mix?
  • Do you currently record calls, and on which DEEP product is that activated?
  • How do your cross-border employees use the LuxZone fixed-mobile convergence feature today?
  • Which features do you actually use from the Webex or Teams client beyond making calls?
  • Do you have a real contact-centre, or do queues and IVRs cover what you need?
Operational discovery.
  • Who configures your IVRs, opening hours and call flows today, you or DEEP?
  • How fast can you add or remove a user, and through which portal?
  • What was your last support-ticket resolution time on a voice issue?
  • How are number ports handled when you onboard a new site?
  • Who owns your handsets, and what happens to them if you change provider?
Strategic discovery.
  • If you had to consolidate to a single collaboration suite tomorrow, would it be Cisco or Microsoft, and why?
  • How important is it that your voice platform is operated by a Luxembourg-resident company under Luxembourg law?
  • Are you comfortable with a 36-month commitment for the next phone system, or is a 12 to 24-month horizon a better match for your business plan?
  • How likely are you to acquire or absorb another company in the next 24 months, and how would your telephony absorb that?
  • If your DEEP account manager left tomorrow, would your contract still feel like a good deal?

C. Objection handling matrix

Objection
Why they say it
Underlying concern
Calibrated response
Proof point
"DEEP is the historic operator, they must be safest."
Brand reflex, risk aversion.
Fear of downtime or porting issues.
Safety is a function of contract terms and operational SLAs, not company size. What level of SLA and credits do you have in writing today?
ILR rules guarantee number portability between any Luxembourg operators, including DEEP and Mixvoip.
"We already use POST mobile and POST fibre."
Inertia, perceived discount.
Worry about losing the bundle.
The bundle saving is real; the question is whether the loss of bundle is bigger than the saving on telephony alone over 36 months. Have you ever modelled that?
Mixvoip can use POST mobile via MVNO-style agreement, so mobile coverage does not need to change.
"Cisco Webex is the safe enterprise choice."
Marketing, IT preference.
Fear of betting on a smaller platform.
Webex is solid; the real question is whether your team uses Webex or Teams day to day. Which one is open on their screens right now?
Microsoft Teams is the dominant collaboration tool in Luxembourg SMEs, per multiple operator launches around Teams Direct Routing.
"ConnectedOffice includes everything in one bill."
Simplicity.
Fear of vendor sprawl.
Bundled bills also hide where your money is going. If we showed you a line-item breakdown of what you actually use, would that be useful?
DEEP's public Essentials price list shows that "extras" like static IP, extra users and DNS protection are charged separately on top of the bundle.
"Their 99.8% SLA is enough for us."
Acceptance.
Risk of bad surprises.
99.8% SLA allows around 17 hours of downtime per year. Would 17 hours of no phones be a real problem for your team?
DEEP's own blog mentions a 99.8% availability for the Managed UC tier, not Webex Calling's 99.999% SLA.
"We need PFS for our regulator."
Compliance.
Audit risk.
Understood. Are all your sites regulated, or only some? For non-regulated sites, you could split telephony to reduce cost without losing PFS scope.
DEEP via POST Telecom PSF holds PFS status; this can be combined with non-PFS connectivity for non-regulated entities.
"DEEP gives us a local account manager."
Relationship.
Service quality.
That matters. How often does that account manager come back to you with proactive price reviews, vs. only when you raise a problem?
Smaller operators typically offer a single named technical contact with a faster path to engineering.
"We had a bad experience with another small operator."
Past pain.
Reliability worry.
Fair. Which operator was it, and which issue? That helps me say honestly whether we have the same gap.
Open question, used to surface specific failure modes (porting delays, SIP quality, support hours).
"Switching providers is always painful."
Switching cost fear.
Productivity hit.
Most of the pain comes from the old contract end date, not the technical move. When does your current contract actually expire?
Number portability is regulated in Luxembourg under ILR Regulation 16/204 (fixed) and 14/174 (mobile).
"We need a 24/7 number to call."
Operational comfort.
Crisis response.
Yes. What is your actual call volume to that number per month, and have you tested response time recently?
DEEP service-desk number is 2424 3030 / 8002 4000. Mixvoip publishes its own dedicated support hours and ticket SLAs.
"All the Webex features are great."
Feature attachment.
Productivity loss fear.
Which Webex features do your users actually open every week, beyond making calls and joining meetings?
In most SMEs, the daily-use surface is calls + chat + meetings, all of which exist in Teams and in third-party softphones.
"Their datacentres are Tier IV."
Trust signal.
Compliance / continuity.
True. Does your telephony actually use that Tier IV layer end-to-end, including handsets and SBCs?
Tier IV applies to the data centre facility, not to the IP path between the handset and the cloud.
"We get a discount on POST mobile if we keep ConnectedOffice."
Price anchor.
Loss aversion.
Have you measured that discount in real euros over 12 months, against the cost of being locked in for 36?
DEEP Pack Advantage discount is documented but not always quantified clearly on the invoice.
"DEEP supports both Cisco and Microsoft, that gives us flexibility."
Optionality.
Future-proofing.
Both stacks live in the contract, but you still pick one in production. Which one is your IT team running today?
DEEP's own product pages list Cisco-based CloudPBX and Teams CloudVoice as separate products, not as one converged stack.
"Mixvoip is smaller, can it scale?"
Vendor size bias.
Capacity worry.
Mixvoip operates the second-largest fixed-voice footprint in Luxembourg and provides wholesale SIP for international operators. What size customer would you consider "scaled enough"?
Mixvoip published its #2 fixed-line position based on ILR data, and serves multi-country deployments.

D. Win/loss pattern map

We win when: the buyer wants public, line-item pricing and feels the ConnectedOffice quote is opaque. We win when the buyer is annoyed by being asked to commit for 36 months on a service they cannot fully audit. We win when they already run Teams (or want Teams) and prefer a vendor that does not push them toward Webex by default. We win when they have multiple sites in Belgium, France or Germany and want one SIP partner across the four countries. We win when responsiveness on technical questions matters more than the size of the brand.
We lose when: the buyer is CSSF-regulated and the procurement check-list requires PFS status, end-to-end ISO 22301, or a Luxembourg-resident Tier IV data centre under the same contract. We lose when there is an existing, deep, multi-product POST relationship (banking, mobile fleet, fibre, colocation in EBRC) and the buyer wants to consolidate further, not split. We lose when the buyer is mostly buying connectivity and treats telephony as a side feature. We lose when the procurement scoring gives extra points for state-owned or "sovereign" suppliers. We lose when an existing Cisco UC investment makes a like-for-like Cisco refresh the path of least resistance.
The deciding factor. Whether the buyer treats telephony as a strategic, line-item service to optimise, or as one tile in a one-stop-shop bundle to standardise.

E. Pricing intelligence (estimated)

Public. DEEP publishes pricing only on the lightest SME bundle, "ConnectedOffice Essentials". The full ConnectedOffice (Classic, Compact and larger variants), CloudPBX, Managed UC, MS Teams CloudVoice, SIP Trunk, IP transit and most enterprise services are quote-only. International call rates, mobile surcharges, zone definitions and some equipment prices are published as a price list document (PDF) referenced by the legal pages.
The verified public reference point, from the official ConnectedOffice Essentials tariff document valid from January 1, 2023:
  • Essentials 100: 72 EUR per month (2 users, 2 numbers, up to 100 Mbps down and 50 Mbps up, WiFi, managed router, 120 fixed-to-fixed and 60 fixed-to-mobile minutes to 42 countries).
  • Essentials 200: 84 EUR per month (2 users, 2 numbers, up to 200 Mbps down and 100 Mbps up, same telephony scope).
  • Additional user: 7.90 EUR per month.
  • Additional number: 1.20 EUR per month.
  • Installation: 205 EUR (grouped) or 300 EUR (individualised), excluding cabling.
  • Minimum commitment: 24 months, then tacit 12-month renewals; early termination triggers payment of remaining fees to the end of the commitment.
Estimated table for non-public products. Estimates only, anchored on Essentials, on regional benchmarks and on past press references. Always check with a recent quote.
Item
Estimated range (EUR per month, excl. VAT)
Basis
Confidence
ConnectedOffice (Classic/Compact, full bundle for ~10 users incl. IP telephony, internet, WiFi, security)
250 to 500
Inferred from Essentials uplift plus added Meraki LAN and CloudPBX users; 36-month commitment per public footnote.
Medium
CloudPBX user (Webex Calling, hosted in POST cloud, fixed-mobile convergence)
18 to 30 per user
Regional Webex Calling resale benchmarks plus LuxZone FMC.
Medium
Managed UC user (Cisco UCM, on customer site or in DEEP DC)
25 to 45 per user, plus setup and BC options
More custom, more services included; lower volume tier.
Low
MS Teams CloudVoice / Direct Routing trunk + number
15 to 25 per user including DID, excluding Microsoft licences
Standard Teams Direct Routing pricing in Benelux.
Medium
SIP Trunk channel (concurrent call)
10 to 20 per channel, plus DID fees
Inferred from LU market norms.
Medium
Additional DID number
1 to 2 per number
Aligned with Essentials price.
High
One-time activation/installation per site
200 to 1,000+
Anchored on Essentials installation fees, scaled for larger sites.
Medium
Mobile BusinessEurope (S to XL)
18 to 60 per SIM
Public mobile plan range.
High
All figures above are pbx.lu analyst estimates for orientation only. They are not quoted by DEEP and should be confirmed via a written DEEP quote.

F. Trigger and signal list

Trigger
What it signals
Outreach motion
Owner
Customer mentions "ConnectedOffice renewal" or "36 months"
Lock-in pain.
Send pbx.lu article on contract length and total cost of ownership.
Sales
Customer is migrating to Microsoft 365 / Teams
Webex fatigue, Teams convergence.
Send Teams + Direct Routing comparison content (DEEP vs. independent providers).
Sales
New office opening in BE, FR or DE
Need for cross-border SIP.
Position multi-country SIP and number portability.
Sales
News of M&A or carve-out
Numbering and PBX consolidation.
Propose audit of existing voice setup before lock-in renewal.
Sales
Customer complains of slow ticket turnaround
Service quality gap.
Position direct technical contact and CSAT data.
Sales
Customer asks "is my Cloud PBX really sovereign / EU?"
Trust shift.
Position Luxembourg-resident operator stack and clear DPAs.
Sales
Customer mentions Webex Contact Center quote
High-ticket scope.
Position simpler queue + IVR alternatives if real volume does not justify it.
Sales
Hiring of new IT manager or CIO
Window for re-evaluation.
Targeted LinkedIn note about cost transparency.
Marketing
Customer asks for "one bill"
Bundle mindset.
Educate on hidden costs of bundling; offer single-invoice option.
Sales
ILR publishes new annual market report
Industry attention.
Publish pbx.lu summary referencing market shares and trends.
Marketing

G. Refresh log

Date
Change
Source
Logged by
2026-05-11
Initial BI page created from full research pass.
pbx.lu research
Miro

Part 2 — AI / RAG-friendly blocks

H. Q&A for retrieval

Company and ownership
Q: What is DEEP?
A: DEEP is the unified B2B telecom and ICT brand of POST Luxembourg Group, launched in June 2024. It brings together the former POST Telecom B2B activities, EBRC, Elgon and Digora Luxembourg.
Q: Who owns DEEP?
A: DEEP is part of POST Luxembourg, a public company owned by the Luxembourg State. The legal entity behind DEEP's telecom services is POST Telecom S.A., RCS Luxembourg B43290, registered at 1 rue Emile Bian, L-1235 Luxembourg.
Q: When did the merger finalise?
A: The legal merger of the four subsidiaries completed at the beginning of 2025, after a public announcement on June 20, 2024.
Q: How big is DEEP?
A: DEEP reports more than 700 to 750 employees, with operations in Luxembourg, France (via Digora France) and Morocco (via Digora Morocco). The wider POST Luxembourg Group employs around 4,500 people.
Q: Who leads DEEP?
A: Cliff Konsbruck is Director of POST Telecom and Director of DEEP; Pierre Zimmer is Deputy Managing Director of POST Luxembourg and Director of DEEP. Sébastien Genesca and Ludovic Gilles are listed as DEEP directors on the official Paperjam profile.
Product features
Q: What telephony products does DEEP sell?
A: Four main products: ConnectedOffice (all-in-one SME bundle including CloudPBX), CloudPBX standalone (Cisco Webex on POST private cloud), Managed UC (Cisco UCM-based, self-hosted or DEEP-hosted), MS Teams CloudVoice (Microsoft Teams Direct Routing), and SIP Trunk for existing PBX systems.
Q: Does DEEP support Microsoft Teams calling?
A: Yes, through MS Teams CloudVoice, which is Microsoft Teams Calling without calling plan with DEEP as the Direct Routing carrier. Luxembourg numbers can be ported into Teams.
Q: Is fixed-mobile convergence available?
A: Yes, via the LuxZone feature on ConnectedOffice and CloudPBX, which allows the same extension to be reached on a desk phone and on a mobile.
Q: Is call recording included on CloudPBX?
A: According to DEEP's own blog article on the move to All-IP, call recording is available on Managed UC by default and is offered as an option on CloudVoice, but is not described as available on CloudPBX at the time of that article. This may evolve, so verify in a current quote.
Q: What collaboration suites does DEEP support?
A: Cisco Webex (default for Managed UC and CloudPBX), Microsoft Teams (default for MS Teams CloudVoice), and hybrid Webex-Teams integrations on request.
Pricing and contracts
Q: Is DEEP's pricing public?
A: Only partly. ConnectedOffice Essentials and BusinessEurope mobile plans have published price points. Full ConnectedOffice (Classic, Compact, larger configurations), CloudPBX, Managed UC, CloudVoice, SIP Trunk and most enterprise services are quote-only.
Q: What does ConnectedOffice Essentials cost?
A: As of the official January 2023 tariff document, Essentials 100 costs 72 EUR per month and Essentials 200 costs 84 EUR per month, both for 2 users and 2 numbers, on a 24-month commitment. Additional users are 7.90 EUR per month and additional numbers 1.20 EUR per month.
Q: What contract length does DEEP ask for?
A: 24 months on ConnectedOffice Essentials, 36 months on the full ConnectedOffice Classic and Compact, per the public footnotes. Renewal is by tacit 12-month periods.
Q: What happens on early termination?
A: On Essentials, the customer pays the balance of monthly fees until the end of the original commitment, per the tariff document.
Q: Are international and mobile-to-mobile calls included?
A: Some destinations are bundled (for example, 120 fixed-to-fixed and 60 fixed-to-mobile minutes per month to 42 countries on Essentials). Outside the bundle, calls are charged by zone and may include a "mobile surcharge" of around 0.13 EUR per minute, per the public price list.
Switching, porting, lock-in
Q: Can a Luxembourg business port numbers away from DEEP?
A: Yes. Number portability is mandatory under ILR Regulation 16/204/ILR (fixed) and 14/174/ILR (mobile). Porting timelines are regulated.
Q: What is the main switching obstacle?
A: Not technical portability but contract length: 24 or 36-month commitments with tacit renewal. The right moment to plan a switch is 2 to 3 months before the renewal date.
Q: Is there hardware lock-in?
A: Cisco IP phones and Polycom devices supplied by DEEP can usually be reused with other providers if SIP-capable, but provisioning files and admin access need to be released or reset. Some phones are sold; others are loaned and must be returned.
Q: Can a customer keep POST mobile and move only the PBX?
A: Yes. Fixed and mobile are separately portable in Luxembourg; some bundle discounts (Pack Advantage) may be lost.
Q: Does DEEP charge to release a customer?
A: Standard porting itself is free under ILR rules. DEEP may invoice the balance of unused contract months, fees for de-installation visits and any unreturned loan equipment, per the published tariff.

I. Controlled vocabulary

Their term
Closest equivalent at Mixvoip / pbx.lu
ConnectedOffice
All-in-one connectivity + voice bundle (Mixvoip sells internet, voice and IT side-by-side rather than as a fixed bundle)
ConnectedOffice Essentials
Light SME bundle (Mixvoip equivalent: internet plan + Voxbi Cloud PBX entry)
CloudPBX (Webex)
Cloud PBX with collaboration (Mixvoip equivalent: Voxbi Cloud PBX, proprietary IPBX)
Managed UC
Hosted or on-site Cisco UCM (no direct Mixvoip equivalent; closest is a self-hosted 3CX or Innovaphone deployed by partners on Mixvoip trunks)
MS Teams CloudVoice
Microsoft Teams Direct Routing (Mixvoip equivalent: Microsoft Teams direct routing via Mixvoip SIP)
LuxZone
Fixed-mobile convergence in Luxembourg (Mixvoip equivalent: SIP-to-mobile FMC features on Voxbi)
Garantie Sécurité Réseaux
Fraud-loss commercial cover under specific conditions (Mixvoip equivalent: outbound traffic monitoring and rate limiting)
MyConnectedOffice
Self-service admin portal (Mixvoip equivalent: Mixvoip customer portal)
Pack Advantage
Cross-product bundle discount (Mixvoip equivalent: combined service quote on request)
BusinessEurope (mini / XS / S / M / L / XL / MAXI)
Business mobile plan tiers (Mixvoip resells POST mobile via wholesale agreement)
DIA / IP-Transit
Dedicated internet access and transit (Mixvoip equivalent: dedicated business internet and BGP transit)
HostPack
Website hosting (no direct pbx.lu lens; out of voice scope)
DNS Protector
DNS-layer security (Mixvoip equivalent: managed firewall and DNS filtering options)
Tier IV data centre
Tier IV-certified data centre (Mixvoip uses Tier III/IV partner facilities)
PFS support
CSSF "Professional of the Financial Sector" status (Mixvoip is not a PFS; PFS-grade services can be arranged via partners)

Part 3 — Deep research

1. Executive summary

DEEP is the consolidated B2B brand of POST Luxembourg, launched on June 20, 2024 and operationally merged from January 1, 2025. It unites the former B2B activities of POST Telecom with EBRC (data centres and business continuity), Elgon (Microsoft cloud) and Digora Luxembourg (Oracle and data services). The legal vehicle for telecom services remains POST Telecom S.A., RCS Luxembourg B43290, headquartered at 1 rue Emile Bian, Luxembourg City. The group counts around 700 to 750 employees and reports activities in Luxembourg, France and Morocco. The wider POST Group employs about 4,500 people and is owned by the Luxembourg State.
In voice and Cloud PBX, DEEP sells four core products: ConnectedOffice (an all-in-one SME bundle of internet, WiFi, Cisco Meraki LAN, security and CloudPBX), CloudPBX as a stand-alone Cisco Webex Calling service in the POST private cloud, Managed UC for customers that want Cisco UCM on-site or in a DEEP data centre, MS Teams CloudVoice as Microsoft Teams Direct Routing, and a SIP Trunk product for existing PBX systems. Mobile is sold under "BusinessEurope" plans. POST mobile has been described as "Best in Test" by Mobile World Congress benchmarks for several years.
Operationally, DEEP runs three Tier IV-certified data centres in Luxembourg, holds ISO 9001, 14001, 20000, 22301, 27001 and 50001, plus PCI DSS Level 1, and operates a Luxembourg PFS-licensed support entity. In March 2025 it announced a sovereign cloud partnership with OVHcloud, and in March 2026 it was named as Microsoft's partner for an expanded Luxembourg cloud presence.
For a Luxembourg buyer, DEEP is the safest, broadest one-stop-shop. For Cloud PBX specifically, the trade-offs are: pricing transparency only at the smallest tier, long contracts on the larger tiers (commonly 36 months), strong Cisco and Microsoft alignment, and limited public detail on advanced PBX features such as call recording across all tiers. Mixvoip remains the second-largest fixed-voice operator and the cleaner choice for SMEs that want public pricing, a proprietary PBX built for Luxembourg numbering, and shorter contract horizons.

2. Company and market position

DEEP is not a separate legal entity in the telecom sense; voice and fixed services continue to be invoiced by POST Telecom S.A. (RCS B43290, VAT LU15558109), 1 rue Emile Bian, L-1235 Luxembourg. The DEEP brand was announced in June 2024 to unite four POST subsidiaries: EBRC (founded 2000, data centres and business continuity), Elgon (Microsoft Cloud, fully owned by POST from 2019), Digora Luxembourg (data management, joined POST via EBRC in 2017) and the B2B activities of POST Telecom. The four legal entities co-existed until end-2024 and then merged operationally from January 1, 2025.
DEEP's positioning is "the single partner for digital services" in Luxembourg, the Greater Region and Europe, with stated coverage of cloud, cybersecurity, data, telecom, datacentre, IoT and managed services. Public-facing language emphasises "sovereignty", "responsible digital" and "trusted partner" themes.
Market role: through POST, DEEP is the incumbent fixed and mobile operator. POST holds around 50% mobile market share by SIM (ILR data via Statista, 2023). Mixvoip refers to itself as the second-largest fixed-voice operator based on ILR data. The other large players in Luxembourg telecoms are Proximus Luxembourg (Tango/Telindus) and Orange Luxembourg. The Luxembourg fixed telecom market reached around 310 million EUR in 2024, per the ILR 2024 report, with average fixed internet ARPU of 54.6 EUR per month.
Leadership (per Paperjam Bible profile, accessed 2026-05-11):
  • Cliff Konsbruck: Deputy Managing Director of POST Luxembourg, Director of POST Telecom, Director of DEEP
  • Pierre Zimmer: Deputy Managing Director of POST Luxembourg, Director of DEEP
  • Sébastien Genesca: Director of DEEP
  • Ludovic Gilles: Director of DEEP
  • Tom Grethen: Director of POST Telecom B2C (consumer side, outside DEEP)
Contact channels: free phone 8002 4000 in Luxembourg, +352 2424 4000 from abroad, commercial.telecom@deep.eu and contact@deep.eu, service desk 2424 3030 for fraud and incident reporting. Local offices include Cloche d'Or (Luxembourg City) and Ettelbruck.

3. Product portfolio

Category
Offering
Verified evidence
Notes / limitations
All-in-one SME bundle
ConnectedOffice (Classic, Compact, larger configurations)
DEEP and POST product pages, public tariff PDF references
36-month commitment, quote-only pricing, includes IP telephony, fibre internet, Meraki WiFi/LAN, DNS Protector security
Light SME bundle
ConnectedOffice Essentials 100 / 200
Official tariff document valid from 2023-01-01
72 to 84 EUR per month, 2 users, 2 numbers, 24-month commitment, additional user 7.90 EUR per month
Cloud PBX
CloudPBX (Cisco Webex Calling on POST cloud)
DEEP product page on Webex CloudPBX
LuxZone fixed-mobile convergence, Webex collaboration, Teams integration described as "under development" on the public blog post
Cloud PBX (private/managed)
Managed UC (Cisco UCM, self-hosted or in DEEP DC, with Jabber/Webex)
DEEP blog "Telephone fixe vers tout IP"
99.8% availability claim, supports call recording, more customisation than CloudPBX
Cloud voice for Microsoft Teams
MS Teams CloudVoice / Direct Routing
DEEP product page on MS Teams
Microsoft Teams Calling without calling plan via DEEP Direct Routing; optional features include receptionist console, contact centre, recording
SIP trunk
SIP Trunk for existing PBX
DEEP blog "Telephone fixe vers tout IP"
For customers keeping their own PBX
Mobile
BusinessEurope mini / XS / S / M / L / XL / MAXI
DEEP mobile plan page
LU, EU and USA coverage; XL unlimited domestic/EU/USA; MAXI extends to Canada, China and 60+ destinations
Internet
ConnectedOffice fibre, DIA, IP-Transit, Data Box, FTTH
DEEP internet page
20 Mbps to 1 Gbps and beyond, dedicated and shared options
Networking
Meraki Cisco-managed LAN/WiFi, SD-WAN, VPN
DEEP networking page
Cisco Gold Partner positioning
Security
DNS Protector (Cisco Umbrella), managed firewall, DDoS protection, Cyberscore
DEEP cybersecurity page
DDoS monitoring published monthly on DEEP backbone
Data centre and cloud
Tier IV colocation, private cloud, sovereign cloud with OVHcloud, future Microsoft cloud zone
DEEP and POST Group press releases
3 Tier IV-certified data centres; sovereign cloud launched March 2025 with OVHcloud OPCP
Mobile + IoT
M2M, IoT, 5G
DEEP IoT page
LU 5G coverage via POST mobile network
TV and signage
Business TV, digital signage
DEEP TV page
Out of voice scope

4. Feature-by-feature assessment

Capability
Available?
Evidence
Analyst note
Cloud PBX (hosted)
Yes
CloudPBX product page
Cisco Webex Calling on POST cloud
SIP trunk
Yes
DEEP blog and product references
Sold as a separate product
Mobile app (softphone)
Yes
Webex and Teams clients
Via Webex App and Microsoft Teams App
Desktop softphone
Yes
Same as above
Webex Desktop or Teams Desktop
Browser softphone
Yes
Webex web client, Teams web client
Vendor-provided
Desk phones
Yes
Cisco IP Phone 78xx/88xx range and Polycom models
Polycom VVX 350/450/501 in Essentials tariff
Microsoft Teams integration
Yes
MS Teams CloudVoice page
Direct Routing; Cisco-Teams hybrid possible
IVR / call queues
Yes
Implicit in product descriptions, explicit on Webex and Teams platforms
Detailed scope not publicly priced
Call recording
Partial / unclear
DEEP blog states recording on Managed UC by default and as option on CloudVoice; not described as available on CloudPBX
Verify in quote
Analytics / reporting
Yes
Webex Control Hub and Teams admin centre
Standard platform reports
Voicemail
Yes
Standard Webex / Teams feature
Visual voicemail in Webex
Business continuity / failover
Partial
Managed UC marketed at 99.8% availability with "enhanced redundancy"
No public 99.99% SLA mentioned for CloudPBX
CRM integrations
Yes
Via Webex and Teams app stores
Not via DEEP itself in the same way as a PBX vendor would
API / programmable voice
Partial
Webex APIs and Microsoft Graph APIs exist
DEEP does not publish its own developer API
Admin portal
Yes
MyConnectedOffice portal (my.connectedoffice.post.lu)
Replaced earlier portals.cloudpbx.post.lu in December 2021
Multi-site support
Yes
Marketed for multi-site organisations
Cisco Meraki backbone
International numbers
Partial
Luxembourg numbers as default; international numbers possible via partners
Verify scope per country
Remote work / mobile use
Yes
LuxZone FMC
Strong on the cross-border worker case
Bundle dependency
High
CloudPBX is often sold inside ConnectedOffice
Standalone CloudPBX exists but is marketed as part of ConnectedOffice
Number portability
Yes
ILR-regulated
Same in both directions
24/7 support
Partial
24/7 service desk for outage and fraud (2424 3030); commercial line is 8002 4000 weekday hours
Verify response SLA in writing
SLA
Yes
99.8% on Managed UC publicly mentioned
Specific SLA documents available on request
Hosting
LU
POST cloud and Tier IV data centres in Luxembourg
Sovereignty story is strong
ISO 27001
Yes
POST Telecom PSF certified
Plus 9001, 14001, 20000, 22301, 50001, PCI DSS L1, PFS

5. Service model assessment

Onboarding is hands-on and consultative. DEEP positions itself as a single point of contact and offers physical retail and B2B locations (Cloche d'Or, Ettelbruck), supplemented by remote provisioning of Microsoft Teams Direct Routing.
Support is structured around a service desk (2424 3030) for incidents and fraud, a commercial line (8002 4000) with documented weekday hours (Monday to Friday 08:00 to 18:00 for commercial enquiries), and dedicated technical contacts for managed customers. The 24/7 channel applies to the service desk.
Languages supported include French, English, German and Luxembourgish, consistent with the Paperjam profile. This is a real advantage for the Luxembourg market and for cross-border workers.
Local presence is high. POST has more than 4,500 employees in the wider group and physical retail in many municipalities. DEEP itself counts 700 to 750 employees. This makes face-to-face contact relatively easy for buyers in Luxembourg City and the larger towns.
Managed vs self-service: ConnectedOffice is positioned as managed (router, WiFi access points and switches are provided and remotely administered). CloudPBX administration is exposed via the MyConnectedOffice portal. For deeper changes (call flows, IVR scripts, queue logic), the buyer typically goes through DEEP support rather than configuring everything self-service.
Hardware: DEEP supplies Cisco IP Phones (78xx/88xx series), Polycom VVX models (350, 450, 501), Polycom Soundstation conference phones, Panasonic DECT, and Sennheiser/Poly headsets, per the Essentials tariff. Meraki WiFi and routers are provided on loan in ConnectedOffice; loan equipment must be returned at end of contract or paid for.
Portability: numbers are portable per ILR rules. The practical friction is the contract length and the equipment loan model, not the porting itself.
SLA: 99.8% availability is publicly mentioned on the Managed UC product. CloudPBX availability is not given as a public SLA percentage; this should be verified in a quote. The underlying Webex Calling platform from Cisco markets a 99.999% SLA, but DEEP's contract with the customer determines the local SLA, which is lower in practice.
Enterprise readiness is strong: PFS status, end-to-end ISO certifications, Tier IV data centres, custom services and the ability to wrap voice in a wider IT outsourcing contract.
SME friendliness is mixed: the Essentials product is documented and priced, but the full ConnectedOffice and CloudPBX experience leans on quotes, sales appointments and longer commitments, which is heavier than what a fast-moving SME might want.

6. Pricing assessment

6.1 Public pricing summary

Public, line-item pricing is limited to:
  • ConnectedOffice Essentials 100 and 200, in a downloadable PDF tariff (valid from January 1, 2023): 72 to 84 EUR per month base, 7.90 EUR per additional user, 1.20 EUR per additional number, 205 to 300 EUR installation.
  • Mobile BusinessEurope plans on the DEEP and POST mobile pages, with named tiers (mini, XS, S, M, L, XL, MAXI) and equipment financing options (24 or 12-month plans).
  • International call rate cards by zone, available as a separate price list.
Full ConnectedOffice (Classic, Compact, larger), CloudPBX user pricing, Managed UC, MS Teams CloudVoice, SIP Trunk channel pricing and most ICT services are quote-only.

6.2 Transparency score

Transparency score: 2 out of 5.
Rationale: DEEP publishes a meaningful, signed and dated tariff for its smallest SME bundle and for mobile, which is positive. Most other voice products, including the core CloudPBX offer and the larger ConnectedOffice configurations, do not have a per-user price on the website. The customer journey is designed to end in a sales appointment. Compared with operators that publish a public price grid (such as Mixvoip on multiple products), DEEP makes it harder for a buyer to compare without engaging sales. A 2 out of 5 reflects that there is some public data, but not enough to model a full quote without contact.

6.3 Likely hidden-cost risks

Buyers often discover these only at the contract stage:
  • Installation and on-site activation fees, especially for individualised telephony configuration (300 EUR on Essentials, more on larger bundles).
  • Cabling, not included in installation fees.
  • Static (fixed) public IP charged extra (around 25 EUR per month on Essentials).
  • Extra WiFi access points charged per AP per month (around 7.20 EUR on Essentials).
  • DNS Protector and other security add-ons charged separately.
  • Charges for additional features such as "prédécrochage" (pre-answer audio).
  • International calls outside the bundle, charged by zone, with a mobile surcharge of around 0.13 EUR per minute on Zone 1 and Zone 2.
  • Equipment loan terms: damage or non-return triggers replacement-value billing.
  • Early termination: balance of remaining monthly fees through the end of the commitment.
  • Tacit renewal in 12-month blocks after the initial 24 or 36 months; missing the cancellation notice extends the contract.

6.4 Buyer questions to ask before signing

  1. What is the exact monthly invoice on the same scope after the discount expires?
  1. What is the cancellation notice period and the exact renewal date?
  1. Which items in the quote are mandatory and which are optional?
  1. Is call recording included, and on which tier? Is storage retention paid separately?
  1. What is the contractual SLA for voice availability, in numeric terms, with credits?
  1. Is the SLA "platform" only, or does it include the access circuit?
  1. What is the response time on a P1 voice incident?
  1. Which numbers are owned by us versus assigned by POST? What happens at the end of the contract?
  1. What does it cost to add 5 users, and what to remove 5 users, mid-contract?
  1. Are the supplied phones sold or loaned, and what are the return conditions?
  1. How is fraud risk on outbound calls handled, and what are the limits of "Garantie Sécurité Réseaux"?
  1. If we move to Teams (or away from Webex), what does it cost to switch within the contract?

7. Ideal customer profile

Best fit.
  • CSSF-regulated entities (banks, fund services, insurance, fintech) that require PFS-status providers and sovereign Luxembourg hosting.
  • Multi-site groups in Luxembourg and the Greater Region that want one operator for fixed, mobile, internet, security and data centre, with one account manager.
  • Organisations already deep into Cisco (UCM, Webex, Meraki) or Microsoft 365 with mature Teams adoption that prefer Direct Routing managed by a local carrier.
  • Public-sector buyers and parastatal entities for whom state ownership and Luxembourg-resident operations are positives.
  • Critical-service providers needing tested business continuity with Tier IV data centre underpinnings.
Poor fit.
  • Small businesses (1 to 10 users) that want a short contract, public per-user pricing and a fast online sign-up.
  • Buyers that view the phone system as a tool to be optimised separately from internet and security, and that do not want a bundle.
  • Cost-sensitive SMEs that already have a usable router and just need a Cloud PBX with SIP trunks.
  • Companies that prefer to keep their existing PBX (3CX, Innovaphone, Wildix, FreePBX) and only want a competitive SIP trunk.
  • International groups whose Luxembourg site is a small node within a global Microsoft Teams or RingCentral footprint.
Watch-outs.
  • Buyers attracted by "all-in-one" simplicity but with limited internal capacity to audit the bundle line-by-line.
  • Buyers with seasonal or volatile headcount, where a 36-month commitment on a fixed user count is expensive.
  • Buyers signing on the implied promise of future features ("Teams integration under development", "future Microsoft cloud zone") rather than features available today in writing.

8. Strengths and weaknesses versus Mixvoip

Clear strengths

  • Owns the country's largest fibre and mobile networks plus three Tier IV data centres.
  • PFS status under CSSF supervision, a real advantage in regulated sectors.
  • End-to-end ISO certifications (9001, 14001, 20000, 22301, 27001, 50001) plus PCI DSS Level 1.
  • Single-vendor scope: telephony, internet, mobile, security, data centre, cloud, IoT, even banking and postal services through the wider POST Group.
  • Strong multilingual local presence (FR, EN, DE, LU) with physical retail and B2B locations.
  • Strategic partnerships announced in 2025 and 2026 (OVHcloud sovereign cloud, Microsoft expanded cloud presence) reinforce the long-term "trusted partner" story.

Clear weaknesses

  • Pricing transparency is limited above the Essentials tier; most products are quote-only.
  • Long contract commitments (24 months minimum on Essentials, commonly 36 months on the full ConnectedOffice).
  • Bundle-heavy go-to-market: stand-alone CloudPBX exists but is often packaged with internet and security.
  • Cisco and Microsoft-centric stack with less native flexibility for third-party PBX brands (3CX, Innovaphone, Wildix).
  • Call recording is not equally available across all tiers, per public documentation.
  • The user experience for self-service admin (MyConnectedOffice) is functional but less developer-friendly than modern UCaaS platforms.

Neutral / depends-on-context points

  • "State ownership" is a positive for some buyers (sovereignty, stability) and a negative for others (less commercial agility).
  • The sheer breadth of the portfolio can be an asset (one bill, one SPOC) or a liability (slower changes, more cross-team handoffs).
  • 99.8% availability claimed on Managed UC is fine for most SMEs but below modern UCaaS marketing benchmarks of 99.99% or higher.
  • The new sovereign cloud and Microsoft partnership announcements may shift the portfolio meaningfully in the next 12 to 24 months; today's BI may need refresh.

9. SEO gap analysis

Gap
Evidence / observation
Search intent
Keyword cluster
Recommended pbx.lu page
Mixvoip advantage
No public CloudPBX per-user price
Only Essentials has a public price; CloudPBX and full ConnectedOffice pages do not show a price
Commercial investigation
"cloud pbx luxembourg price", "post connectedoffice price", "deep cloud pbx tarif"
"Cloud PBX pricing in Luxembourg: what is public, what is not"
Mixvoip lists pricing publicly
No clear contract-length comparison
24 vs 36-month commitments are mentioned in legal footnotes only
Commercial investigation
"post cloud pbx contract length", "connectedoffice 36 months"
"Cloud PBX contract length: what to negotiate before signing"
Mixvoip offers shorter commitments
Limited explanation of "LuxZone" FMC for cross-border workers
Mentioned in product pages, but no buyer-friendly walkthrough
Informational
"luxzone fmc cross-border", "fixed-mobile convergence luxembourg"
"Cross-border workers and Cloud PBX: how FMC actually works"
Mixvoip Voxbi FMC explained simply
No comparison page DEEP vs Mixvoip in English
DEEP does not maintain comparison content
Commercial investigation
"deep vs mixvoip", "post telecom vs mixvoip"
"DEEP vs Mixvoip for a Luxembourg SME"
Mixvoip is the natural alternative
Call recording availability across CloudPBX, Managed UC and CloudVoice
DEEP blog covers it lightly; not on every product page
Informational
"cloud pbx call recording luxembourg", "post cloudpbx recording"
"Call recording on a Luxembourg Cloud PBX: by tier and by use case"
Mixvoip recording is clearly documented
Teams Direct Routing total cost of ownership
DEEP MS Teams CloudVoice page is light on numbers
Commercial investigation
"teams direct routing luxembourg", "ms teams cloudvoice price"
"Microsoft Teams Direct Routing in Luxembourg: what it really costs"
Mixvoip publishes Teams DR pricing
Bundle vs unbundled telephony
DEEP defaults to bundle; pbx.lu can offer a buyer-side decision framework
Informational
"bundle vs unbundled cloud pbx", "connectedoffice alternative"
"When to bundle telephony with internet, and when not to"
Mixvoip supports both models
Migration playbook from DEEP to another operator
No public guide on the DEEP side
Commercial investigation
"leave post telecom", "switch from connectedoffice"
"How to switch from DEEP / ConnectedOffice without losing numbers"
Mixvoip onboarding is documented
English-language Cloud PBX glossary for Luxembourg buyers
DEEP and POST content mixes FR/DE/EN
Informational
"cloud pbx glossary luxembourg"
"Cloud PBX terms used in Luxembourg, in plain English"
Cross-language clarity
"Sovereign cloud" and telephony, what it really means
DEEP markets sovereignty heavily
Informational
"sovereign cloud pbx luxembourg", "where is my pbx data hosted"
"What 'sovereign' Cloud PBX actually means for a Luxembourg buyer"
Mixvoip data residency story
ISO and PFS in the context of telephony
DEEP communicates certifications well but not always tied to voice
Informational
"iso 27001 cloud pbx luxembourg", "pfs voice provider luxembourg"
"ISO and PFS in voice contracts: what to ask for"
Mixvoip operates under EU GDPR and offers partner-PFS setups
Number portability practical guide
ILR rules exist but no plain-language buyer guide on DEEP
Informational
"number portability luxembourg", "porting numbers between operators luxembourg"
"Number portability in Luxembourg: a step-by-step buyer guide"
Mixvoip handles porting directly

10. GEO gap analysis

Gap
Local / geographic context
Why competitor under-serves it
Recommended pbx.lu page angle
Mixvoip positioning angle
Cross-border worker (BE/FR/DE to LU)
About 212,000 daily commuters per Mordor Intelligence
DEEP markets LuxZone but does not explain costs and limits in plain English
"Cross-border workers and your phone system in 2026"
Mixvoip operates SIP termination in BE, FR, DE and LU
Wallonia / Belgian Lorraine buyers (BE)
Many BE-domiciled SMEs with LU offices
DEEP is LU-centric; BE pricing and porting less visible
"Belgian SME with a Luxembourg office: which Cloud PBX?"
Mixvoip operates in BE with same brand
Lorraine / Grand Est buyers (FR)
Cross-border IT decisions made in Metz, Nancy, Thionville
Same as above
"French SME with a Luxembourg desk: voice options"
Mixvoip operates in FR
Trier / Saarland buyers (DE)
LU-DE border traffic, headquarters in DE
DEEP focuses on LU; DE coverage relies on partners
"German company with a Luxembourg branch: Cloud PBX choices"
Mixvoip operates in DE
Multi-site SMB in LU (e.g. Esch, Ettelbruck, Wiltz)
Smaller towns sometimes get less account attention from incumbents
DEEP has Cloche d'Or and Ettelbruck offices but coverage outside is sales-rep led
"Cloud PBX for a 3-site SME outside Luxembourg City"
Mixvoip targets these segments
Public-sector entities outside Luxembourg City
Communes, hospitals, schools, parastatals
DEEP is well-positioned here, hard to dislodge
"Public-sector telephony: how to compare offers fairly"
Mixvoip serves municipalities and healthcare per its industry pages
Healthcare / hospitals (LU and BE)
Mixed national rules, 24/7 reliability
DEEP is strong but expensive
"Healthcare Cloud PBX: what changes vs an office"
Mixvoip healthcare industry page
Hospitality (LU hotels, restaurants, conference venues)
Multi-language guests, low IT staff
DEEP bundles bring complexity not needed by small hotels
"Cloud PBX for a Luxembourg hotel under 30 rooms"
Mixvoip retail / hospitality experience
Fund services / fintech in LU
PFS, KYC, audit needs
DEEP is the default; Mixvoip needs a partner story
"Voice compliance for fund services: PFS or not PFS?"
Mixvoip with PFS-status managed partner
Co-working spaces and serviced offices
High churn, per-desk demand
DEEP's 24 to 36-month commitments do not match
"Per-desk telephony for co-working operators"
Mixvoip flexible billing

11. Content opportunities for pbx.lu

Article ideas.
  1. What ConnectedOffice actually includes, line by line.
  1. CloudPBX with Cisco Webex vs Microsoft Teams Direct Routing: when each makes sense in Luxembourg.
  1. LuxZone explained: how DEEP's fixed-mobile convergence works for cross-border workers.
  1. The hidden costs of a 36-month telephony contract in Luxembourg.
  1. POST mobile vs Tango vs Orange for business: what changes in 2026.
  1. DEEP, EBRC and Elgon: who is who after the merger.
  1. ILR rules and number portability: what the regulator actually requires.
  1. Sovereign cloud and Cloud PBX: what changes for a Luxembourg buyer.
  1. ISO 27001 in a voice contract: what to ask for.
  1. Cisco Webex vs Microsoft Teams adoption in Luxembourg SMEs.
Comparison page ideas.
  1. DEEP CloudPBX vs Mixvoip Voxbi Cloud PBX.
  1. DEEP ConnectedOffice vs Mixvoip unbundled internet + Cloud PBX.
  1. DEEP MS Teams CloudVoice vs Mixvoip Teams Direct Routing.
  1. DEEP Managed UC vs Self-hosted 3CX on a Mixvoip SIP trunk.
  1. DEEP SIP Trunk vs Mixvoip SIP Trunk for a 3CX customer.
  1. DEEP vs Mixvoip for a CSSF-regulated entity.
  1. DEEP vs Mixvoip for a 5-user SME.
  1. DEEP vs Mixvoip for a 50-user multi-site company.
  1. DEEP mobile (BusinessEurope) vs Mixvoip business mobile via POST wholesale.
  1. DEEP DNS Protector vs Mixvoip managed firewall and DNS filtering.
FAQ ideas.
  1. Is DEEP the same company as POST Telecom?
  1. Can I keep my Luxembourg number if I leave DEEP?
  1. How long is a ConnectedOffice contract?
  1. Is call recording included with CloudPBX?
  1. What is LuxZone?
  1. Can I have Microsoft Teams calling with DEEP?
  1. What does PFS status mean for my Cloud PBX?
  1. What is the SLA on DEEP CloudPBX?
  1. What is included in ConnectedOffice vs ConnectedOffice Essentials?
  1. Can I run my own PBX on a DEEP SIP trunk?
Commercial BOFU page ideas.
  1. "Get a second opinion before renewing ConnectedOffice."
  1. "Cloud PBX for CSSF-regulated entities: a side-by-side comparator."
  1. "Cross-border workers Cloud PBX worksheet (LU/BE/FR/DE)."
  1. "Free 30-minute audit of a ConnectedOffice quote."
  1. "Microsoft Teams Direct Routing in Luxembourg: which carrier fits your stack?"

12. Objections and switching triggers

Reasons buyers stay.
  • Comfort with a state-owned, full-stack incumbent.
  • Bundled invoice and a known account manager.
  • PFS and ISO scope already mapped to the regulator's expectations.
  • Sunk Cisco investments (UCM, Webex, Meraki).
  • Loss of "Pack Advantage" discount on combined mobile + fixed plans.
Reasons buyers leave.
  • Opaque pricing on new quotes and renewals.
  • Mismatch between actual usage and the bundle they pay for.
  • Long commitments that block reorganisation or downsizing.
  • Slow turnaround on small configuration changes.
  • Preference for Microsoft Teams as the single client, with a more flexible Direct Routing partner.
Likely switching triggers toward Mixvoip.
  • A renewal letter for ConnectedOffice (24 or 36 months) arriving on the desk.
  • A new IT lead or CIO joining and re-auditing supplier contracts.
  • Office move or new site requiring fresh installation.
  • Acquisition or carve-out triggering a numbering review.
  • A budget review where finance asks for line-item visibility.
Proof pbx.lu needs to persuade them.
  • A clear, line-item price comparison on an apples-for-apples scope.
  • A documented migration playbook with timelines, who-does-what and risk points.
  • Case studies of similar Luxembourg-resident SMEs switching from DEEP / POST Telecom to Mixvoip.
  • Public CSAT or NPS data from the new provider.
  • Written confirmation of SLA and support response times.

13. Evidence gaps / unknowns

  • Current per-user list price of CloudPBX in 2026 (Verified fact missing).
  • Current ConnectedOffice Classic and Compact monthly prices at common SME sizes (Evidence gap).
  • Public SLA percentage and credit scheme for CloudPBX (separate from Managed UC's 99.8%) (Evidence gap).
  • Whether call recording is now part of the standard CloudPBX product, since the DEEP blog noted it was not at the time of writing (Reasoned inference needs refresh).
  • Whether the Microsoft cloud expansion in Luxembourg announced for 2026 will lead to a fully integrated DEEP+Microsoft cloud PBX bundle, and on what terms (Evidence gap).
  • Up-to-date number of customers and revenue split between connectivity, voice and ICT (No public figure).
  • Whether DEEP intends to publish per-user prices on CloudPBX or MS Teams CloudVoice in the future (No public statement found).
  • Exact contract penalties on ConnectedOffice Classic and Compact (Evidence gap; Essentials terms confirmed, full bundle terms inferred).
  • Detailed list of CRM integrations natively supported by DEEP's Cisco-based CloudPBX (Evidence gap).
  • Migration toolkit or porting timelines published by DEEP (No public document found).

14. Sources

Primary, official sources
Press and third-party

Bottom line

A Luxembourg business should seriously consider DEEP when it needs PFS-status sovereignty, Tier IV data centres, full-stack consolidation under one contract, and either Cisco Webex or Microsoft Teams Direct Routing managed by the national incumbent; it should look at Mixvoip when it wants public line-item pricing, shorter commitments, a Luxembourg-built PBX optimised for local numbering and cross-border work, and a faster path between an issue and an engineer.