What Inextrix Technologies Pvt. Ltd. does

Inextrix Technologies is a privately held Indian VoIP software development company founded in 2010 and headquartered in Ahmedabad, India, with additional offices in Orlando (United States), London (United Kingdom), and Randburg (South Africa). The firm specializes in building custom VoIP solutions on open-source telephony platforms — FreeSWITCH, Asterisk, OpenSIPS, Kamailio, and WebRTC — and has developed a proprietary product portfolio targeting Internet Telephony Service Providers (ITSPs), telecom operators, managed service providers (MSPs), and large enterprises globally. Its service portfolio spans custom VoIP development, mobile and web application development, product engineering, DevOps, VoIP testing, and consulting, while its product suite comprises ASTPP (carrier-grade VoIP billing and softswitch with BSS/OCS), iCallify (CCaaS/UCaaS contact center platform with auto dialer, IVR builder, and live monitoring), Fonimo (cross-platform WebRTC softphone), and the broader TailorCraft Solutions suite covering IP PBX, Class 4/5 Softswitch, SBC, billing, conferencing, MVNO, and related modules. The company also delivers customization, white-labeling, and integration services for open-source stacks including VICIdial, FusionPBX, Linphone, and SIP.js.

The company monetizes through three primary channels: professional services delivered under Fixed Cost, Hire Developer (monthly), and Time & Material (pay-as-you-go) engagement models; licensing and white-label deployment of its ASTPP, iCallify, and Fonimo products; and managed services for ongoing DevOps and product engineering support. Its go-to-market is enterprise field sales with direct engagement via website CTAs and dedicated sales contacts across its four geographies, supplemented by content marketing, community engagement (ClueCon sponsorship, FreeSWITCH contributions), and customer case studies. Self-reported scale includes 46+ team members, 794+ clients, 1,654+ projects delivered, and a presence in 63+ countries. Ownership is founder-led (Samir Doshi and Arpit Modi as co-founders and directors), with no disclosed external funding rounds or institutional investors in the source material.

Name

Inextrix Technologies Pvt. Ltd.

Legal name

Inextrix Technologies Pvt. Ltd.

Website

https://inextrix.com

Company type

Private

Founded year

2010

Operating status

Operating

Headcount range

51–100 employees

Short description

Inextrix Technologies is an Indian VoIP software development firm founded in 2010, specializing in custom VoIP solutions and proprietary telecom products (ASTPP, iCallify, Fonimo) for ITSPs, telecom operators, and enterprises across 63+ countries.

Ownership category

akta.pro rank

Product category

VoIP / Telephony Software

NAICS

Custom Computer Programming Services (541511), Computer Systems Design and Related Services (54151)

SIC

Services-Telephone Interconnect Systems (7385), Services-Computer Programming Services (7371), Services-Prepackaged Software (7372)

akta.pro primary industry

VoIP Access & ITSP Services (HDAIAHAD)

akta.pro secondary industry

Voice Calling (VoIP) Apps (BPAMACAC)

Keywords

• VoIP software
• Open source telephony
• VoIP billing platform
• Cloud call center
• VoIP consulting

Headquarters

HQ city

Orlando

HQ country

United States

HQ region

North America

Offices4 records

Markets served

GTM type

B2B

Offering type

Software

Cost components

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

Revenue model

1. Custom VoIP Development Services: Tailored VoIP solutions development using open-source platforms (FreeSWITCH, Asterisk, OpenSIPS, Kamailio, WebRTC) for ITSPs, VoIP providers, and telecom businesses. Includes consulting, customization, support and maintenance.
2. Mobile and Web App Development: Native and cross-platform mobile app development (Android, iOS, React Native, Flutter) and web development services (React, Angular, Node.js, Laravel).
3. Proprietary Products (ASTPP, iCallify, Fonimo): Commercial licensing and white-label deployment of proprietary telecom platforms for billing, contact center, and softphone solutions.
4. DevOps and Product Engineering Services: End-to-end product engineering, CI/CD implementation, cloud deployment, and managed services.

Pricing tiers

Go-to-market motion1 record

Distribution channels1 record

Marketing channels6 records

Core offering

Inextrix Technologies develops and sells open-source-based VoIP and telephony software products — ASTPP (VoIP billing and switching platform), iCallify (cloud-based call center solution), and Fonimo (mobile VoIP dialer/SDK) — and delivers professional services including VoIP consulting, custom VoIP development, mobile/web application development, software testing, and DevOps services to telecom operators and VoIP service providers worldwide.

Product overview

Inextrix Technologies is a VoIP-focused software development company offering a portfolio of proprietary products alongside open-source solutions and professional services. The core proprietary product suite consists of three distinct platforms: ASTPP (A Smart Telephony Platform) — a carrier-grade VoIP billing and softswitch (BSS/OCS) with Class 4/5 Softswitch, multi-tenant IP PBX, and real-time rating capabilities; iCallify — an intelligent contact center (CCaaS/UCaaS) with Auto Dialer, Live Monitoring, IVR Builder, and Call Recording; and Fonimo — a WebRTC-based cross-platform softphone supporting voice, video, and messaging with custom branding. These three products are complemented by a solutions suite branded as TailorCraft Solutions covering call center, AI voicebot, voice broadcasting, audio/video conferencing, VoIP billing, SBC, enterprise VoIP, faxing, live monitoring, dialers, MVNO, unified communications, and prison communication. Inextrix also provides deep expertise in open-source VoIP platforms including FreeSWITCH, Asterisk, OpenSIPS, Kamailio, WebRTC, VICIdial, FusionPBX, Linphone, and SIP.js, delivered as custom development, consulting, and support services alongside product engineering and DevOps services.

Differentiator

Problem solved

Functional benefit

Brands

• ASTPP: Smart Telephony Platform for VoIP businesses. Complete billing, switching & communication solution. Carrier-Grade VoIP Billing & Softswitch with BSS/OCS capabilities.
• iCallify
• Fonimo
• TAILORCRAFT SOLUTIONS

Products and services

• ASTPP

Quantifiable outcome

• 99.95% uptime SLA for cluster and high availability setups
• +2 more outcomes

Named customers7 records

Segments8 records

Ideal customer profiles3 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration4 records

AI capability9 records

Feature3 records

Partnerships

Two partnerships are on record, tiered core.

• FreeSWITCH CommunitycoreStrategic or Co-development PartnerActive contributor to FreeSWITCH platform. Company has developed ASTPP (#1 open-source VoIP platform based on FreeSWITCH). Close association with FreeSWITCH community and sponsorship of ClueCon developer conference events.
• SignalWirecoreTechnology or IntegrationClose association with SignalWire, leveraging SignalWire technology alongside FreeSWITCH for VoIP solutions. Team specializes in both FreeSWITCH and SignalWire technologies.

Scale indicators7 records

Recent moves6 records

Expansion highlights6 records

Broad incumbents

• Genesys: Global CCaaS and CX platform incumbent that competes with iCallify and TailorCraft Solutions in the enterprise contact-center market.
• Cisco / Webex: Broad incumbent in UCaaS, CCaaS, and collaboration, competing with Inextrix's iCallify, Fonimo, and unified communications offerings at the enterprise tier.
• Twilio: Cloud CPaaS and UCaaS incumbent whose programmable voice and Elastic SIP Trunking compete with on-premise FreeSWITCH/Asterisk stacks where Inextrix's products are deployed.

Direct peers

• 3CX: IP-PBX/UCaaS vendor with a strong channel and SMB/ITSP customer base; competes head-to-head with Inextrix's IP PBX, softswitch, and unified communications solutions.
• VICIdial Group: Maintainers of the open-source VICIdial contact-center platform, the same product Inextrix customizes and integrates with for ITSP and call-center customers.
• Sangoma Technologies: Owns Asterisk, FreePBX, PBXact, and Switchvox and sells both software and services to ITSPs and SMBs — directly competing with Inextrix across open-source VoIP, PBX, and contact-center offerings.
• SignalWire: Commercial FreeSWITCH-based CPaaS and UCaaS platform that serves the same ITSP developer audience as Inextrix and partners with Inextrix while also competing for the same channel.
• Telestax (Restcomm): Open-source communications platform (Restcomm) built on FreeSWITCH and similar OSS stacks, aimed at telecom operators and developers — overlapping product and customer footprint with Inextrix.

Emerging players

• Kamailio: Open-source SIP server project that Inextrix develops on top of; the community and ecosystem compete for the same specialist SIP/VoIP engineering talent.
• Agora: WebRTC-based real-time CPaaS platform competing with Fonimo for embedded voice/video/messaging in web and mobile applications.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat3 records

Key risks7 records

Key highlights7 records

Customer concentration

• Xx.com/inextrix
• YouTubeyoutube.com/c/InextrixTechnologiesPvtLtdAhmedabad
• Facebookfacebook.com/InextrixTechnologies
• LinkedInlinkedin.com/company/inextrix-technologies
• Instagraminstagram.com/inextrix_technologies/?igshid=YmMyMTA2M2Y%3D

Revenue estimate

Valuation estimate

Number of profiles

Profiles2 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 Inextrix Technologies Pvt. Ltd.