What Sipfront does

Sipfront GmbH is a Vienna-based SaaS company that provides automated quality assurance and compliance monitoring for Voice AI deployments and enterprise telecommunications infrastructure. The platform simulates end-to-end phone calls and video conferences, stress-tests voice bots under concurrent load, validates RTP/SIP media flows (including novel Bluetooth HFP testing of real mobile devices on 4G/5G/VoLTE/VoNR/Wi-Fi Calling networks), and integrates into CI/CD pipelines for regression testing. Built on AWS using Go, Perl, Python Lambda functions, and open-source telecom components (SIPp, Kamailio, rtpengine), the modular platform is organized around three strategic pillars: Operational Assurance (snappiness and reliability), Revenue Assurance (invisible churn detection), and Regulatory Assurance (EU AI Act and HIPAA automated auditing).

The company sells via a hybrid motion: self-service SaaS signup through app.sipfront.com alongside direct enterprise sales targeting DACH initially and expanding globally. Revenue combines recurring enterprise subscriptions (fixed base fees billed monthly in advance) with usage-based variable fees (test calls, agent minutes, data volume) and managed assurance services for organizations without internal QA teams. Named enterprise customers include Magenta/T-Mobile, Sipgate, Sunrise, NFON, Cloudtalk, Parloa, Broadvoice, and Intelepeer across telecom, UCaaS/CCaaS, and Voice AI provider segments. The platform also exposes a public API and integrates with Datadog, AWS OpenSearch, QXIP's Hepic, and Enable Security's SIPVicious Pro.

Sipfront was founded around 2020–2021 by Andreas Granig (CEO), Daniel Tiefnig (COO), and Markus Seidl (CTO), who previously built and sold Sipwise to Alcatel-Lucent Enterprise for an eight-figure sum in 2018. The company has raised over €3 million cumulatively: a six-figure angel round (May 2022), a seven-figure FFG research grant (May 2022) supporting a three-year ML project with OFAI, a €1.3M pre-seed (January 2024) led by tecnet equity, and a €1.8M seed round (January 2026) led by Airbridge Equity Partners with participation from tecnet equity.

Name

Sipfront

Legal name

Sipfront GmbH

Website

https://sipfront.com

Company type

Private

Founded year

2021

Operating status

Operating

Headcount range

11–50 employees

Short description

Sipfront is a Vienna-based SaaS platform providing automated quality assurance, performance testing, and regulatory compliance monitoring for enterprise Voice AI deployments and telecom infrastructure, serving European telecom operators, UCaaS/CCaaS providers, and Voice AI platforms.

Ownership category

akta.pro rank

Product category

Telecom Test Automation and Voice AI Quality Assurance

NAICS

Software Publishers (5132), Computing Infrastructure Providers, Data Processing, Web Hosting, and Related Services (51821)

SIC

Services-Prepackaged Software (7372), Services-Computer Integrated Systems Design (7373)

akta.pro primary industry

Cloud PBX & Hosted Telephony (HDAIAHAB)

akta.pro secondary industries

SIP Trunking & Voice Termination (HDAIAHAC), VoIP Access & ITSP Services (HDAIAHAD), VoIP/ATA & Integrated Voice Gateways (CPE) (HDAFAIAJ)

Keywords

• VoIP testing automation
• Voice AI quality assurance
• SIP call testing
• Telecom monitoring platform
• Real-time communication QA

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, Marketing or Sales, Infrastructure, Operations

Revenue model

1. SaaS Subscription for Telecom Testing: Sipfront provides SaaS solutions for software testing of communication infrastructure. Services are accessible via the sipfront.com platform and app.sipfront.com portal. The platform follows a subscription model with monthly billing periods. For fixed fees like base fees and standard usage packages, billing occurs in advance. Variable fees such as individual usage fees are billed at the beginning of the following month.
2. Usage-based Testing Fees: Variable fees are charged based on individual usage of testing services, including number of test calls, agent minutes, and data volume. Billing for variable fees occurs monthly in arrears.
3. Managed Assurance Services: Managed services offering where Sipfront provides fully managed QA assurance, likely as a professional service add-on to the core SaaS platform.

Pricing tiers

Go-to-market motion3 records

Distribution channels4 records

Marketing channels8 records

Core offering

Sipfront sells a cloud-based Quality Assurance Platform for Voice AI and enterprise telecom that simulates end-to-end SIP calls and video conferences, monitors real-time communication quality, and validates voice bot performance, latency, and compliance. The platform combines a Core Engine with capabilities for load/stress testing, regression and CI/CD testing, 24/7 monitoring and alerting, Voice AI and WebRTC testing, global test agents, forensics, and a fully managed assurance service, sold primarily on a monthly subscription basis with usage-based variable fees.

Product overview

Sipfront is a Quality Assurance Platform for Voice AI and Enterprise Telco, offering a modular SaaS solution combining a Core Engine with specialized testing modules. The platform provides test automation for real-time communications including Voice AI quality assurance, telecom monitoring, and regulatory compliance. Key modules include Load & Stress Testing, Regression & CI/CD Testing, Monitoring & Alerting, Voice AI & Latency Testing, WebRTC & Desktop App Testing, Expert Testbook Library, Global Reach (Agents), Forensics & Observability, and Managed Assurance. Strategic pillars include Operational Assurance, Revenue Assurance, and Regulatory Assurance. The company recently expanded into Voice AI testing with AI-powered test agents and supports compliance with EU AI Act and HIPAA regulations.

Differentiator

Problem solved

Functional benefit

Products and services

• Sipfront Platform (Core Engine) The central SaaS testing platform for telecommunications test automation, providing automated call simulation, quality monitoring, and compliance verification for real-time communication services including SIP calls, video conferences, and Voice AI deployments. Sold on a monthly subscription basis with fixed base fees billed in advance and variable usage-based fees billed in arrears, accessible at app.sipfront.com with self-service online registration.
• Managed Assurance A fully managed testing service where Sipfront's experts handle test design, execution, and analysis on behalf of the customer, providing outsourced quality assurance for telecom and Voice AI deployments. Sold as a professional services add-on to the core SaaS platform for organizations lacking dedicated QA teams or seeking additional expertise.
• Compliance Audit Service A dedicated compliance audit engagement where Sipfront automates verification of EU AI Act, HIPAA, and other regulatory requirements, including bot self-identification, legal restrictions, and transparency mandates, and produces verifiable audit evidence and trails for regulated enterprises. Promoted via a dedicated 'Get a Compliance Audit' CTA.

Quantifiable outcome

• Identifies invisible churn caused by quality failures that impact revenue but are missed by traditional monitoring
• +2 more outcomes

Named customers13 records

Segments5 records

Ideal customer profiles5 records

Technology focussed Yes

API detail

Has API

Yes

API docs

API detail

Core technology

AI maturity

App detail

Integration2 records

AI capability9 records

Feature10 records

Partnerships

Two partnerships are on record, tiered core.

• OFAI (Austrian Research Institute for Artificial Intelligence)coreStrategic or Co-development Partner · 1 May 2022Research partner for the three-year ML project. Dr. Brigitte Krenn of OFAI's Language and Interaction Technologies Group is collaborating with Sipfront to develop ML models for recognizing and categorizing connection errors in real-time communications using large datasets of generated calls.
• QXIPcoreTechnology or IntegrationQXIP is the author and maintainer of Homer (open-source VoIP monitoring) and Hepic (commercial monitoring platform). Sipfront provides native Hepic integration directly from within the Sipfront interface, allowing users to inspect full call flows, timing, and SIP message content. Sipfront also recommends QXIP for commercial Homer/Hepic support.

Scale indicators6 records

Recent moves6 records

Expansion highlights7 records

Direct peers

• Cyara: Provides automated testing and assurance for contact center and voice platforms, including SIP/VoIP and Voice AI scenarios. Closest direct competitor to Sipfront's Core Engine and Voice AI testing modules, serving the same UCaaS/CCaaS buyer base at larger enterprise scale.
• TestRTC: Specialized WebRTC and real-time communications testing platform offering load testing, network emulation, and quality monitoring. Direct overlap with Sipfront's WebRTC & Desktop App Testing module and core RTC testing capabilities.

Broad incumbents

• Hammer (Empirix/Keysight): Long-standing telecom load testing tool (originally Hammer, now part of Keysight) for SIP/VoIP signaling and media testing. Comparable to Sipfront's Load & Stress Testing and SIP testing capabilities but positioned as a broad incumbent infrastructure testing suite rather than a Voice AI QA specialist.
• CallMiner: Speech analytics and conversation intelligence platform widely deployed in enterprise contact centers for quality monitoring. Adjacent in Voice AI QA use cases but operates as a broader incumbent in post-call analytics rather than real-time telecom testing.
• Genesys: Global CCaaS and customer experience platform with embedded quality monitoring, workforce engagement, and Voice AI capabilities. Represents both a potential Sipfront customer (testing their platform) and a competitor if they bundle native QA tooling.

Emerging players

• Observe.AI: Voice AI quality and conversation intelligence platform for contact centers, with speech analytics, agent coaching, and quality scoring. Comparable in Voice AI QA overlap but focused on post-call analytics rather than Sipfront's pre-deployment and live-call testing approach.
• VAPI: Voice AI development platform for building and deploying AI voice agents, with growing focus on testing and observability for Voice AI assistants. Comparable in Voice AI testing intent, focused on the builder-side of the Voice AI stack rather than the independent verification layer.
• Retell AI: Voice AI agent platform with built-in testing, monitoring, and analytics for AI-powered phone calls. Overlaps with Sipfront in Voice AI quality validation but is positioned as a builder platform rather than an independent QA/testing tool.

Others

• Speechmatics: Speech recognition engine provider used in Voice AI stacks that Sipfront tests. Adjacent ecosystem participant whose ASR performance Sipfront helps validate rather than a direct competitor.
• Hepic (QXIP): Commercial VoIP monitoring and forensics platform from QXIP, which already has a native integration partnership with Sipfront. Complementary tool for SIP trace inspection and call flow analysis, jointly serving the same telecom operator buyer.

Market position

Strengths5 records

Weaknesses4 records

Competitive moat6 records

Key risks5 records

Key highlights6 records

Customer concentration

• Xx.com/sipfrontcom

Revenue estimate

Valuation estimate

Number of profiles

Profiles3 records

Funding overview

Funding rounds2 records

Investors2 records

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 Sipfront