What Median does

Median Telecom GmbH is a privately held German telecommunications company founded in 1996 and headquartered in Witten, with a collocation data center in Frankfurt. It operates a dual retail-and-wholesale model serving consumers, small and mid-sized businesses, telecommunications resellers, and international PTTs (Postal, Telephone and Telegraph administrations) primarily in Germany and Austria. Its portfolio spans customer-facing services — Call by Call via the 01063 prefix, prepaid calling cards, SIP-Trunking, geographic, nomadic, and special numbers, flat rates, and workplace telephony — and carrier-grade services including number porting, switch partitioning, white-label billing, interconnect processing, BNetzA regulatory handling, and wholesale voice termination.

The underlying technology is a VoIP (Voice over IP) infrastructure using SIP (Session Initiation Protocol) as the primary protocol, deployed on owned network assets rather than resold capacity, and continuously developed using open-source-based, cross-manufacturer engineering. The company supports VoIP-to-VoIP, TDM-to-VoIP, and TDM-to-TDM conversions, and offers technical capabilities spanning custom software development, ISDN PBX and VoIP hardware support, and network management. Scale metrics include 400+ million international voice minutes handled annually and 11,600+ points of sale served across Germany and Austria.

The business model combines usage-based revenue (per-minute international voice termination, Call by Call), recurring subscription revenue (SIP-Trunking monthly line fees), managed services revenue (white-label billing, regulatory processing), and professional services revenue (technical consulting, software development, hardware support). Distribution relies on direct B2B sales, the Telekom Deutschland fixed-line network for retail Call by Call billing, and reseller/carrier partnerships for wholesale services. The company is founder/management-owned with no disclosed parent, external investors, or institutional backers; managing director Stefan Voigt is the sole named executive.

Name

Median

Legal name

Median Telecom GmbH

Website

https://median-telecom.de

Company type

Private

Founded year

1996

Operating status

Operating

Headcount range

11–50 employees

Short description

Median Telecom GmbH is a privately held German telecommunications provider founded in 1996, operating its own VoIP/SIP network to deliver retail telephony, SIP-Trunking, and carrier services across Germany and Austria.

Ownership category

akta.pro rank

Product category

Telecommunications Services

NAICS

Wired and Wireless Telecommunications Carriers (except Satellite) (51711), All Other Telecommunications (51781)

SIC

Services-Telephone Interconnect Systems (7385), Telephone Communications (No Radiotelephone) (4813)

akta.pro primary industry

Consumer Mobile Network Operators (Retail MNOs) (HDAIAAAA)

Keywords

• Wholesale voice termination
• SIP trunking services
• Telecommunications consulting
• VoIP carrier services
• Call by call telephony

Headquarters

HQ city

Witten

HQ country

Germany

HQ region

Europe

Offices2 records

Markets served

GTM type

B2B and B2C

Offering type

Services

Cost components

Operations, Infrastructure, Personnel, Technology or R&D, Marketing or Sales, Others

Revenue model

1. International Voice Termination: Wholesale voice termination services handling over 400 million minutes in international voice segment annually. Revenue generated per minute of voice traffic terminated
2. Call by Call Services: Retail consumer telephony service using 01063 prefix with minute-based pricing. Price is announced before connection. Revenue generated through per-minute charges billed via Telekom Deutschland
3. SIP-Trunking: Business telephony services providing IP-based lines with lower monthly fees than traditional ISDN. Revenue from monthly line fees and usage charges
4. Billing Services: White-label billing platform for carriers and resellers. Can handle end-to-end customer billing or provide CDR data. Revenue from service fees per processed call or monthly platform fees
5. Phone Cards (Calling Cards): Prepaid calling cards with Guthaben (credit) for international calls. Revenue generated through sale of prepaid minutes at markup
6. Technical Consulting and Services: Consulting for telecommunications infrastructure, network management, hardware support, and software development. Revenue from professional service engagements

Pricing tiers

Go-to-market motion1 record

Distribution channels4 records

Marketing channels3 records

Core offering

Median Telecom provides a dual-track portfolio of retail consumer telephony services (Call by Call via the 01063 prefix, prepaid calling cards, SIP-Registrar, geographic/special/nomadic numbers, flat-rate packages) and wholesale/carrier-grade services (SIP-Trunking, switch partitioning, wholesale voice termination, white-label billing, number porting, BNetzA regulatory processing, interconnect handling) for resellers, PTTs and Tier-1 operators. The company complements these with technical consulting, custom open-source-based software development, telecom hardware support and network management services for carrier and enterprise clients.

Product overview

Median Telecom is a German telecommunications company founded in 1996 offering a comprehensive portfolio of voice and data services for both retail customers and wholesale/carrier markets. The company operates a multi-layered product architecture consisting of customer-facing services (Call by Call, Calling Cards, SIP services, special and geographic number services, flat rates), carrier services for resellers and telecom operators (number porting, billing, switch partitioning, SIP trunking, interconnect processing, regulatory compliance), and technology services (software development, hardware support, network management, technical consulting). The company processes over 400 million minutes annually in the international voice segment and serves over 11,600 point-of-sale locations across Germany and Austria, combining VoIP technology with traditional telecommunications infrastructure.

Differentiator

Problem solved

Functional benefit

Products and services

• Call by Call (01063) Consumer retail dialing service that prepends 01063 before any number to obtain discounted per-minute rates, with price announced before connection and billed through the Telekom Deutschland telephone bill. Targets individual landline users in Germany.
• Telefonkarten (Calling Cards) Prepaid phone cards with PIN-based authentication for cost-effective international calls from landline and mobile phones, available across Germany and Austria, with credit valid for 2-6 months after first use.

Quantifiable outcome

• 400+ million minutes annually in international voice segment
• +2 more outcomes

Named customers5 records

Segments3 records

Ideal customer profiles3 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature5 records

Partnerships

Four partnerships are on record, tiered core.

• Telekom DeutschlandcoreTechnology or IntegrationTelekom Deutschland provides the fixed-line network infrastructure for Median Telecom's Call by Call (01063) services. Customers access Median services through Telekom landlines, and billing is processed via Telekom telephone bills. This is a foundational integration partnership for the retail consumer segment.
• International PTTscoreChannel Partner/ Reseller/ DistributorInternational Postal, Telephone and Telegraph administrations use Median's Carrier-Class Switch Partitioning and collocation services in Frankfurt to route voice and data signals and offer their own VoIP services to customers.
• Tier-1 Telecommunications ProviderscoreChannel Partner/ Reseller/ DistributorMajor international telecommunications carriers access Median's collocation facilities and switch partitioning to serve their carrier customers and dealers with VoIP-based services.
• Bundesnetz-Agentur (BNetzA)coreOthersMedian Telecom handles regulatory filings and number allocation applications with the German Federal Network Agency for customers, including number blocks, registration, and compliance monitoring under telecommunications law.

Scale indicators4 records

Recent moves5 records

Expansion highlights4 records

Direct peers

• sipgate: German VoIP provider offering SIP trunking, mobile VoIP, and PBX solutions to SMBs and consumers. Comparable to Median's SIP and retail telephony services with a similar DACH SMB focus.
• dus.net: German VoIP/SIP provider targeting business customers with SIP trunking and cloud communications. Closely comparable to Median's SIP-Trunking offerings and B2B SMB customer profile.
• 3U HOLDING AG: German-listed telecom holding with wholesale voice termination and carrier services through its telecom subsidiaries. Directly comparable to Median's wholesale voice termination, switch partitioning, and international carrier business.
• ecotel communication ag: German B2B/wholesale telecom operator offering voice, data, and SIP trunking services with own network infrastructure. Highly comparable to Median's wholesale and SIP services portfolio and similar mid-market positioning.
• easybell: German VoIP/SIP trunking provider serving SMBs with cloud telephony. Comparable to Median's SIP-Trunking and SMB-focused retail services in the German market.

Emerging players

• nfon AG: European cloud telephony/PBX provider focused on SMBs across DACH and broader Europe. Comparable as an adjacent VoIP/cloud communications player targeting a similar SMB segment, though with a stronger SaaS/UCaaS emphasis.

Broad incumbents

• Deutsche Telekom: Largest German telecom incumbent providing fixed-line, mobile, and wholesale services. Provides the network on which Median's Call by Call rides and is the dominant broad incumbent Median competes against at the wholesale and retail layers.
• 1&1 Versatel: German fixed-line carrier serving business customers with voice, data, and internet services. Comparable as a broader business-focused incumbent in Median's core German market with overlapping wholesale capabilities.
• Vodafone Germany: Major German telecom carrier offering fixed-line, mobile, and B2B services. Comparable as a broad incumbent competing for similar SMB and wholesale customers, with significantly greater scale and resources.

Regional players

• M-net Telekommunikations: Regional German telecom carrier primarily serving Bavaria with fixed-line, mobile, and business services. Comparable as a regional DACH peer operating with own network infrastructure in adjacent geography.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat6 records

Key risks6 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/median-telecom-gmbh

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Median