DEEP Telecom

DEEP offers three telephony tiers. Understanding the differences matters, because features are not equal across tiers.

Managed UC is the premium option. The telephone exchange runs either on the customer's own IT infrastructure or in a dedicated DEEP data center environment. It uses Cisco technology (Jabber, Webex). Call recording, contact center features, and Microsoft Teams Direct Routing are included. SLA of 99.8%.

CloudPBX is the mid-range cloud option. The exchange is hosted in DEEP's private cloud. It includes standard features: auto-attendant, call queues, voicemail, softphone via Cisco Webex, and fixed-mobile convergence via LuxZone. Call recording is not available on this tier.

CloudVoice sits between the two. It is hosted in public cloud and advertises flexibility. Fewer public details are available on this option.

ConnectedOffice is the SME bundle. It wraps CloudPBX telephony together with internet, WiFi, LAN management, and security into one managed service. Convenient but high in switching cost.

Voxbi offers a single platform with call recording included as standard. There is no need to upgrade to a more expensive tier to access this feature.

DEEP does not publish pricing for any telephony product. ConnectedOffice, CloudPBX, and Managed UC all require contacting a sales representative and going through a formal quote process.

An independent benchmark (Openfield, Luxembourg) compared pricing across POST, Cegecom, Mixvoip, and RCarre. POST acknowledged in its public response that comparing a premium offer with other solutions presents challenges, suggesting DEEP pricing sits at the premium end of the market.

For SMEs, the Luxembourg government's SME Packages programme can cover up to 70% of eligible digitalization costs. DEEP promotes this subsidy actively for ConnectedOffice deployments. The same subsidy applies to Voxbi deployments.

Voxbi publishes its pricing on voxbi.com. You can compare before any sales conversation.

The following features are confirmed on the CloudPBX tier:

The following are not available on CloudPBX:

Voxbi includes call recording and a management portal as standard, without requiring an enterprise tier.

DEEP's infrastructure credentials are significant. POST operates Luxembourg's primary fixed and mobile network. EBRC, a DEEP subsidiary, runs tier-IV data centers in Luxembourg. In 2026, Microsoft is expanding its cloud presence in Luxembourg in collaboration with DEEP, focused on Azure infrastructure.

In the Openfield independent CloudPBX benchmark, POST ranked first for most secure and highest quality CloudPBX in Luxembourg. The benchmark tested POST, Cegecom, Mixvoip, and RCarre.

For organizations in banking, insurance, healthcare, or public administration, DEEP's security positioning is a genuine advantage.

For SMEs not operating in regulated industries, the enterprise security infrastructure may be more than required. Mixvoip was one of the four operators benchmarked. Its platforms also operate from Luxembourg infrastructure.

DEEP's telephony offer is primarily Luxembourg-focused. Belgian, German, and French numbers are not prominently featured in their product documentation.

LuxZone, DEEP's fixed-mobile convergence product, works within the Luxembourg mobile network.

Voxbi provides numbers in Belgium, Germany, and France from the same platform. For businesses in the Greater Region with clients or offices across borders, this is a practical difference.

Number portability from DEEP to any other provider is straightforward under ILR regulations. Luxembourg phone numbers can be moved to a new provider.

Switching from DEEP depends on which product you use.

If you are on SIP Trunk only, the switch is straightforward. Number portability is regulated by the ILR, and a new SIP provider can take over your numbers.

If you are on ConnectedOffice, switching telephony often means reviewing the whole bundle: internet, WiFi, security, and telephony are on one managed connection. Separating services adds complexity.

If you are on Managed UC with Cisco hardware, note that Cisco IP phones are often provisioned specifically for the Cisco platform. Moving to a non-Cisco Cloud PBX may require reconfiguring or replacing handsets. Standard SIP phones (Yealink, Snom, Poly) provision easily on any platform.

Mixvoip already operates on the POST mobile network for its own business SIM cards. Businesses moving their telephony from DEEP to Voxbi can keep POST-quality mobile coverage through Mixvoip.

No. DEEP does not publish pricing for any telephony product. ConnectedOffice, CloudPBX, and Managed UC all require a formal quote from a sales representative. There is no online pricing calculator or published per-user cost.

No. Call recording is not available on DEEP's CloudPBX tier. To access call recording with DEEP, you need to upgrade to Managed UC, their most advanced and most expensive option. Voxbi includes call recording as standard on its platform without a tier upgrade.

ConnectedOffice is DEEP's all-in-one bundle for SMEs. It combines professional internet, WiFi, LAN management, telephony (CloudPBX), VPN, and security into one managed connection. It is designed to reduce the number of providers an SME deals with. The trade-off is full dependence on DEEP's network: if the connection has issues, all services are affected at once.

Yes. Voxbi works on any internet connection, including DEEP's. You are not required to change your ISP to use Voxbi for telephony. Some businesses use DEEP for internet and Mixvoip for telephony, keeping each service independent.

DEEP is the B2B brand of POST Luxembourg. The DEEP name was launched in 2024 to consolidate Post Telecom, EBRC, Elgon, and Digora Luxembourg under one identity. Residential and basic consumer services remain under the POST brand at post.lu. If you previously had a business contract with POST Telecom, your services are now part of DEEP.

Yes. The Luxembourg SME Packages programme, which can cover up to 70% of eligible digitalization project costs, is not exclusive to DEEP products. It applies to Cloud PBX deployments broadly. Both DEEP and Voxbi deployments can qualify, subject to eligibility criteria set by the Ministry of Economy.