3CX

3CX offers a fully featured FREE IP PBX with no time outs that is supported via the 3CX forums. 3CX is a privately held company with a management team backed by years of experience in developing and selling network infrastructure software.

Denwa

Denwa is a top provider of softswitches, virtual PBXs, and IP-PBXs for NGN. Its softswitch solutions actively run in more than 30 telephony operators across the globe. IP-PBX platforms, tailored to both SMB and SME markets, have positioned Denwa as first-in-class in the telecommunications field.

Digium | Asterisk

Digium®, Inc., the Asterisk company, is the original creator and primary developer of Asterisk, the industry’s first open source telephony platform. Digium provides quality hardware and software products, including AsteriskNOWTM, the complete open source software appliance; Asterisk Business EditionTM, the professional-grade version of Asterisk; the AA50, the Asterisk ApplianceTM hardware-based telephony solution; and Switchvox, a complete turn-key IP PBX solution, to enterprises and telecommunications providers worldwide.

Elastix

Elastix® is developed and managed by PaloSanto Solutions an Ecuadorian Based Company. PaloSanto Solutions is a leader in open source innovation and new technology in Latin America. Their experience in the development and implementation of open source technologies makes them the preferred technology provider to more than 1000 companies.

Epygi

Epygi Technologies designs and manufactures robust IP PBXs, voice over IP gateways and cost-saving conference servers. Epygi Quadro PBX appliances are positioned to serve the SMB and SOHO markets, teleworkers and branch offices of large corporations.

Fonax

FONAX PRO is A SERVER BASE IPPBX with capacity to manage between 1 to 400 extensions, up to 100 concurrent calls, inter connectable with digital trunks, analog lines or voip sip trunking, it is suitable for anyone who wants to have unified communications, has a full mobile solution, reduce communications cost, manage advance reports , for a reasonable price without licensing.

HiperPBX

Through an extended network of partners, HiperPBX provides small and large companies with telecom infrastructure designed to optimize communications and business processes. Their portfolio includes last generation scalable IP-PBX, call-center specific solutions, professional consulting services and qualified technical support. HiperPBX Inc. has operations and offices in Argentina, Mexico, Peru, Uruguay and the US.

Matrix

Matrix is a leading manufacturer of telecom equipment for the customer premises (CPE). These solutions can be grouped under following categories – Voice Switching, Voice Messaging, GSM Products and VoIP Products. Matrix switching products include IP PBXs for SOHO, SMB ,SME and large enterprises.

NEC Sphere

Award-winning NEC Sphericall IP PBX delivers enterprise-class unified communications. Combining robust PBX functionality and advanced unified communications features, Sphericall is a comprehensive solution managed through a simple point-and-click user interface.

Siemens

Siemens Enterprise Communications is a premier provider of end-to-end enterprise communications, including voice, network infrastructure and security solutions that use open, standards-based architectures to unify communications and business applications for a seamless collaboration experience.

Sonetel

Sonetel provides a free, global phone system to small and medium size companies worldwide from operation centers in Europe, USA and Asia. Servicing over 20,000 customers in 200 countries, Sonetel is privately held, with headquarters in Stockholm, Sweden. The CEO Henrik Thomé is a serial entrepreneur with more than 20 years experience from the Telecom/Internet business.

Talkswitch

TalkSwitch is a division of Centrepoint Technologies, Inc. Formed in 1990, TalkSwitch sells desktop phone systems and switchboard equipment mainly to small and midsize companies. Most of its devices are interoperable wherein they integrate traditional phone networks with VoIP systems. TalkSwitch offers a range of IP-PBX systems, IP Gateways and IP phones. Some of its early products are the Concero Switchboard and the TalkSwitch line of systems.

trixbox

trixbox®, formerly Asterisk@Home, which started as a home-grown Asterisk® project, has rapidly become one of most active open source projects in the world. In 2006, trixbox attracted the attention of Fonality, a Los Angeles-based IP-PBX company. The synergies between the companies quickly became clear and Fonality acquired trixbox in October 2006. Fonality now offers Fonality trixbox Pro, a hybrid-hosted software-based solution for resellers; and trixbox CE, an open-source IP-PBX project.