What Communi5 does

Communi5 Technologies GmbH is a Vienna-headquartered, privately held Austrian software company that builds carrier-grade Unified Communications as a Service (UCaaS) and VoIP platforms for telecom operators, mobile network operators, and service providers. Its platform spans the full voice stack — a Class 4 softswitch with integrated Interconnection SBC, a multi-tenant Voice Application Server (VAS), a Cloud PBX with more than 150 features, an integrated call center, video meetings, desktop and mobile softclients, and a distinctive Mobile UCaaS capability that integrates natively into mobile operator core networks without requiring third-party apps. The architecture supports SIP, SIP-I/-T, SS7, ISDN, and legacy protocols with geo-redundant L3 active-active clustering, and is certified for carrier-grade regulatory requirements including STIR/SHAKEN, lawful interception, and GDPR.

The company monetises primarily through recurring licensing and managed services to service providers, with deployment options including self-hosted, Communi5-hosted, or a pay-as-you-grow rental model. Its go-to-market combines direct enterprise sales to telecom operators (e.g., Sonatel in Senegal), channel/reseller distribution through regional providers (e.g., ecotel in Germany reaching 300+ partners and 15,000+ business customers), and an integration partner ecosystem spanning Microsoft Teams (Direct Routing, Operator Connect, Presence Sync), CRM/CTI vendors (PhoneMondo, ek-soft), billing platforms (JeraSoft), and vertical specialists (tomedo for healthcare). Customer concentration sits with tier-1 telecom anchors in DACH and increasingly West Africa, with the company claiming 50+ customers and over 100,000 business ports processed annually.

Communi5 traces its technology lineage to a 2001 SIP proxy development at Kapsch CarrierCom, was acquired by TELES AG in 2007, became independent through a 2015 management buyout, and was rebranded to Communi5 in 2019 with Vienna as headquarters and Berlin retained for softclient R&D. In 2023 the company absorbed TELES AG's carrier solutions segment, adding approximately one-third to its headcount, and has since expanded into West Africa via the Sonatel/Flex Jokko national platform deployment.

Name

Communi5

Legal name

Communi5 Technologies GmbH

Website

https://communi5.com

Company type

Private

Founded year

2001

Operating status

Operating

Headcount range

11–50 employees

Short description

Communi5 Technologies GmbH is a Vienna-based software company that builds carrier-grade UCaaS and VoIP platforms — including softswitch, multi-tenant VAS, Cloud PBX, and native mobile core integration — for telecom operators and service providers, primarily in the DACH region with expanding presence in West Africa.

Ownership category

akta.pro rank

Product category

Carrier-Grade UCaaS & VoIP Platform Software

NAICS

Computing Infrastructure Providers, Data Processing, Web Hosting, and Related Services (518)

SIC

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

akta.pro primary industry

UCaaS Platforms & Suites (HDAIAHAA)

akta.pro secondary industries

Cloud PBX & Hosted Telephony (HDAIAHAB), Contact Center (CCaaS) & Customer Engagement Voice (HDAIAHAF), Collaboration & Unified Communications Management (UCaaS/VoIP) (BPAEABAK)

Keywords

• Carrier-grade UCaaS platform
• VoIP softswitch solutions
• Cloud PBX software
• SIP trunking services
• Telecom unified communications

Headquarters

HQ city

Vienna

HQ country

Austria

HQ region

Europe

Offices2 records

Markets served

GTM type

B2B

Offering type

Software

Cost components

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

Revenue model

1. UCaaS Platform Licensing to Service Providers: Communi5 licenses its carrier-grade UCaaS platform (VAS, Softswitch, Cloud PBX) to telecom operators and service providers. Providers can host the platform themselves or rent media resources from Communi5. Revenue generated through platform licensing, per-user subscriptions, and feature-based pricing. Supports multi-tenant deployment allowing providers to serve multiple end-customers from a single platform.
2. SIP Trunking and Voice Services: SIP trunking services for enterprises and government customers, including multi-homing capabilities, multi-site integration, and UCaaS feature add-ons. Revenue from per-trunk or per-channel pricing.
3. Professional Services and Custom Development: Joint development and platform co-creation with partners (e.g., ecotel) where Communi5 provides technology foundation and partners customize for local markets. Includes migration services from legacy TDM to All-IP networks.
4. Managed Services (Provider-hosted): Service providers can host Communi5 platform themselves or rent directly from Communi5, enabling cost-efficient, pay-as-you-grow model with minimal upfront investment for providers.

Pricing tiers

Go-to-market motion3 records

Distribution channels4 records

Marketing channels6 records

Core offering

Communi5 develops and licenses a carrier-grade UCaaS and VoIP platform consisting of a Softswitch (Class 4 with integrated Interconnection SBC) and a multi-tenant Voice Application Server (VAS). Service providers and telecom operators deploy the platform to deliver Cloud PBX, Call Center, Meetings, Desktop & Mobile Apps, SIP trunking, mobile UCaaS and Microsoft Teams integrations to their own business and residential customers. The platform can be self-hosted by the provider or rented as media resources from Communi5, supporting pay-as-you-grow scaling.

Product overview

Communi5 offers a comprehensive portfolio of carrier-grade communication solutions for service providers and businesses. The platform consists of two core products: the Softswitch (Class-4 VoIP switching platform with integrated I-SBC) and the Voice Application Server (VAS, multi-tenant UCaaS platform). These are complemented by a unified communications suite including Cloud PBX, Call Center, Meetings, Desktop & Mobile Apps, and Mobile UCaaS. The platform provides deep integrations with Microsoft Teams (Direct Routing, Operator Connect, and Presence Sync), CRM/ERP systems via OpenAPI/REST/TAPI, and supports telco-specific functionality including SIP trunking, network migration, and interconnect SBC capabilities. The solution is multi-tenant, geo-redundant, and enables service providers to serve multiple customers from a single platform.

Differentiator

Problem solved

Functional benefit

Products and services

• Softswitch Carrier-grade Class-4 VoIP switching platform with integrated Interconnection Session Border Controller (I-SBC) for high-performance call processing, network interconnection, intelligent call routing with dynamic Least Cost Routing (LCR), and geo-redundant clustering scalable to hundreds of thousands of concurrent calls. Targeted at telecom operators and service providers.
• Voice Application Server (VAS) Multi-tenant UCaaS platform for service providers enabling fixed, mobile and converged business and residential voice services with reseller and white-label configurations and L3 active-active geo-redundancy.
• Cloud PBX Carrier-grade Cloud PBX with over 150 telephony features including voicemail, IVR, call forwarding, call recording and conferencing, delivered on a multi-tenant architecture that lets service providers serve multiple business and residential customers from one platform.
• Call Center Cloud-based call center integrated with the Cloud PBX featuring skill-based routing, VIP prioritization, intelligent call distribution, real-time Live View monitoring, comprehensive reporting and analytics, and the integrated DesktopOperator softclient.
• Meetings Fully integrated video conferencing within the Cloud PBX supporting HD audio/video, screen sharing, group chats and one-click transitions from phone calls to video meetings, hosted either by the provider or using Communi5-rented media resources.
• Desktop & Mobile Apps Unified softclient combining telephony and video conferencing across Windows, Mac, iOS, Android and web browsers, with presence status, instant messaging, screen sharing and customizable branding for service-provider white-label deployments.
• Mobile UCaaS Solution that integrates the Voice Application Server into mobile network operator cores, turning mobile devices into full extensions of corporate telephone systems without additional apps and using real-time presence status for corporate call routing.
• Microsoft Teams Direct Routing & Operator Connect Integration that enables external telephony for Microsoft Teams users via Direct Routing or Operator Connect, allowing service providers to sell phone numbers and voice minutes, and to add call distribution features to Teams.
• Microsoft Teams Presence Sync Bidirectional synchronization of presence and telephony status between Microsoft Teams and Communi5 Cloud PBX, with status-based call forwarding and dedicated busy-call forwarding for Teams users without requiring a Teams Phone License.
• SIP & Cloud Trunking SIP trunking solution with multi-homing capabilities, multi-site integration and step-by-step migration to Cloud PBX, designed for demanding enterprises and service providers with high availability requirements.
• Network & Platform Transformation Migration solution that helps telecom operators transition from legacy TDM-based infrastructures to All-IP architecture with intelligent call routing and protocol conversion.
• Mobile Core Integration Native integration of the Voice Application Server into mobile network operator core networks, enabling enhanced voice services and corporate PBX functionality on mobile devices via NNI integration.
• Interconnect SBC Session Border Controller functionality delivered as part of the Softswitch, providing secure and efficient interconnection between telecom carriers, service providers and enterprise networks with protocol interoperability and traffic optimization.

Quantifiable outcome

• Over 100,000 business ports managed per year across 50+ service provider customers in DACH region as of 2023
• +2 more outcomes

Named customers7 records

Segments4 records

Ideal customer profiles2 records

Technology focussed Yes

API detail

Has API

Yes

API docs

API detail

Core technology

AI maturity

App detail

Integration23 records

AI capability3 records

Feature9 records

Partnerships

Seven partnerships are on record, tiered flagship, core and key.

• Sonatel (Senegal)flagshipStrategic or Co-development Partner · 1 January 2023Sonatel, Senegal's leading telecommunications provider and member of the Orange Group, partnered with Communi5 to launch 'Flex Jokko' - a nationwide carrier-grade cloud communication platform. This is the first national UCaaS platform in Senegal, enabling businesses of all sizes to access modern communication, collaboration, and customer service solutions. The platform combines business telephony, team collaboration, audio/video conferencing, and customer service features on a single platform.
• ecotelflagshipStrategic or Co-development Partnerecotel, a leading German B2B ICT provider with 25 years of market presence, collaborated with Communi5 to build a high-scalability, high-availability geo-redundant communications platform for the German market. The entire ecotel communications portfolio runs on this platform including VoIP/SIP voice connections, multi-tenant cloud PBX, SIP trunk products, and Microsoft Teams/RingCentral integration. ecotel serves 300+ partners and 15,000+ business customers.
• JeraSoftcoreTechnology or IntegrationJeraSoft, a leading provider of telecom billing and AI-powered billing solutions, expanded its partnership with Communi5 to integrate JeraSoft's billing, rating, and routing capabilities with Communi5's switching and unified communications platform. The partnership enables telecom operators to manage traffic, monetization, and operational efficiency more efficiently. JeraSoft's AI-powered billing features including automation, anomaly detection, and operational insights are available to Communi5 customers. Partnership validated through joint implementations with operators including 21st Century, CSC, and Symbia.
• PhoneMondo (Scavix Software)coreTechnology or IntegrationPhoneMondo, a cloud-based CTI and CRM integration solution by Scavix Software, is fully integrated with Communi5's UCaaS platform. The integration enables Communi5 service providers to expand cloud telephony with CRM and business integrations (HubSpot, Salesforce, Zoho CRM, Pipedrive, Microsoft Outlook, DATEV, Odoo, Freshdesk, monday.com, and more) within minutes without additional infrastructure. Available to all Communi5 service providers with version 8.3+.
• ek-soft GmbHcoreTechnology or IntegrationGerman CTI specialist ek-soft and Communi5 deepened their collaboration to enable Cloud PBX users to continue using traditional CTI software and TAPI integration. The joint solution provides a powerful CTI client, bidirectional Microsoft Teams presence sync, standard TAPI driver for Windows applications, reporting tools for office communication analysis, and centralized LDAP-based contact data pool. This is described as the only truly hybrid CTI solution that operates without a local PBX.
• OrangekeyStrategic or Co-development PartnerOrange, a major international telecommunications group, participates in the Communi5 partner ecosystem. Orange's Madjid Babaci was a speaker at the 2023 Communi5 Lounge event and noted they have worked with Communi5 almost every day for the last three years. Orange's MEA operations have collaborated closely with Communi5 on communications projects.
• 21ctlkeyStrategic or Co-development Partner21ctl, a company focused on African telecommunications markets (specifically Nigeria), participated in the 2023 Communi5 Lounge as a partner providing insights into the African communications market. Wale Ajisebutu from 21ctl emphasized collaboration as key to success in bringing change to African telecom markets.

Scale indicators5 records

Recent moves8 records

Expansion highlights6 records

Direct peers

• AudioCodes: AudioCodes provides SBCs, media gateways and a Microsoft-certified Teams voice ecosystem for service providers; it is both a partner (referenced in Communi5 Lounge events) and a direct competitor in carrier SIP/Teams telephony infrastructure.
• TELES AG Informationstechnologien: Former parent of Communi5 and now a competitor following the 2023 divestiture of TELES AG's carrier solutions segment; TELES retains overlapping carrier voice and SBC capabilities that overlap with Communi5's platform.
• PortaOne: PortaOne provides a carrier-grade softswitch, billing, and UCaaS platform purpose-built for service providers and ITSPs, directly mirroring Communi5's multi-tenant Class-4/Class-5 offering to telecom operators.
• Bicom Systems (Puzzel partnership): Bicom Systems offers multi-tenant UCaaS, PBX and SIP trunking platforms targeted at service providers, closely paralleling Communi5's reseller/white-label deployment model for telcos.
• 3CX: 3CX is a software-based PBX/UCaaS platform widely deployed by service providers and resellers for SMB and mid-market customers, overlapping with Communi5's Cloud PBX offering in distribution channels and feature scope.
• NetSapiens: NetSapiens delivers a white-label UCaaS and hosted PBX platform that service providers resell to SMB and enterprise customers, overlapping with Communi5's voice application server and Cloud PBX suite.
• Sangoma Technologies: Sangoma offers UCaaS, SBCs, SIP trunking and contact center solutions delivered both directly and through service providers, putting it in direct competition with Communi5's integrated communications and interconnects portfolio.

Emerging players

• Cirpack (OVHcloud): Cirpack, integrated into OVHcloud, supplies carrier-grade softswitch and VoIP platforms to European operators; it competes with Communi5's Class-4 switching and hosted telephony in the European market.

Broad incumbents

• Mavenir: Mavenir offers cloud-native mobile core, UCaaS and RCS solutions for mobile operators and service providers, competing with Communi5's mobile core integration and carrier-grade UCaaS in operator networks.
• Ribbon Communications: Ribbon (formed from Sonus Networks and GENBAND) provides SBCs, softswitches and UCaaS to carriers and enterprises globally; it competes with Communi5 in carrier voice core and interconnects and serves a much broader portfolio of tier-1 telcos.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• YouTubeyoutube.com/channel/UCIDaOL0M0YsS8z4R7lKlrMQ
• LinkedInlinkedin.com/company/communi5

Compliance3 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles8 records

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 Communi5