VOIP PBX and Servers

Numeric

• EasyPbx:Hybrid IP-PBX Solution for Service Providers and System Integrators, control and monitor thousands of PBX trough a Web Management System based on profile Levels (Provider, Reseller, PBX Admin, User)
• 2cancall.co.uk:Asterisk-based converged telephone system for UK Businesses
• 2N NETSTAR PBX, virtual PBX: VoIP PBX system
• 2N Omega IP PBX: VoIP PBX system
• 2N VoiceBlue Enterprise: Simple VoIP SIP PBX
• NBX: 3com's Commercial VoIP System
• 4PSA VoipNow: Hosted PBX software for service providers and enterprises, accelerating SaaS deployment. It runs on Linux environments (RHEL, SuSE Linux, CentOS, Fedora) on x86 and Power PC architecture based servers.
• 3CX Phone System: Develops an IP PBX / VOIP Phone system for Windows more Information 3CX
• 800PBX Inc.: Provides commerical grade PBX servers for resellers for easy creation of independent extensions and features for each company.

A

• Active Telecom: Commercial IP CENTREX application server for service provider (MOSAICA)
• Adminsparadise VoIP: Opensource PBX and Fax server including LiveCD and CentOS based install. Features HylaFax, AvantFax, Scheduled Conferencing, FreePBX with delegation of roles and unified theme
• Adopting a Business PBX: In a telephony environment that includes a single or multiple analog or digital PBXs, an IP gateway is required...
• Advanced SoftSwitch with LCR:Advanced Softswitch offers real-time voice switches to diverse range of ITSPs (Internet Telephony Service Providers) over IP networks.
• Advantage PBX Asterisk VoIP PBX Servers and small business solutions.
• Allworx VoIP Key Systems: Allworx manufactures the 6x, 10x, and 24x IP Key System product line designed to provide the key system functionality found in traditional small office phone systems while still maintaining SIP standard interop with third-party phone, gateways and ITSPs.
• A class smallest PBX server in the world: Embedded full functional Asterisk PBX solution, not bigger than a postcard.
• ASTFIN: Embedded Asterisk Distribution for Blackfin DSP. Open hardware PRI, BRI Appliances.
• AntiSPIT Server:AntiSPIT™ Server gives VoIP and video telephony service providers comprehensive network protection from spam.
• Aquarius Telecoms' TritonOne Multi-Tenant VoIP PBX Server allows companies to offer VoIP services to residential and corporate clients. Based on proven, reliable HP hardware, we offer ease of use and cost effectiveness.
• Advoco NetPBX: Advoco NetPBX is a commercial carrier grade, IP centrex and hosted communications platform offering a wide range of business telephony services.
• ATcom: easily build your IP-PBX or Carrier system with handling 124 channels/calls.
• AskoziaPBX: Embedded asterisk system based on m0n0wall.
• Asterisk: Open Source PBX Introduction | FAQ | tips & tricks
• Astimax ®: Commercial VoIP/ISDN PBX
• Astium ®: Web managed commercial asterisk based PBX with multi tenanting, central phone configuration. Prompts and interface in Dutch, French, English
• Asterisk Cluster: CTC Connections provides an full features Multi-Tenant asterisk cluster system with load balancing, high availability, DNS SRV with ability to remove a server from the cluster at anytime without informing the cluster management system. It scales upwards of 20,000 + calls with media pass trough and 100,000+ with no media pass through.
• AVM VoIP Gateway 8155 Hardware PBX: 4x Ethernet, ISDN: 4x FXO, 4x FXS, SIP: P2P Connection/SIP-Trunking, 40 extensions, ADSL2+ Router, 4x VPN, ~350€
• Axon Virtual PBX by NCH Swift Sound: Windows VoIP PBX for small to medium sized business.
• AYCTelecom IPcts: IP Converged Telephone System. Full featured SIP PBX designed for Small and Medium Sized Business.
• Aztech IP-PBX : VoIP PBX; upto 8FXO & 50 extensions.

B

• Bayonne: The telephony server of the GNU Telephony Project
• BEA: J2EE-SIP Application Server
• Belco PBX: IP PBX System
• Bicserver: Low cost IP PBX System Solutions
• Billion Softswitch: SIP/H323 softswitch for Linux/FreeBSD/Solaris/Windows.
• BlueWave Telecom's VoIPFlow 2.0: Deploys, manages, and scales 1000's of virtual Asterisk pbx systems. For ISP's and Service providers.
• Brekeke: Commerical VOIP PBX and SIP server
• Broadsoft: Commerical SIP Application server

C

• Connecto- All-in-one Office Communicator: IP-PBX, Voice, Data, FMC, WiFi & Internet over the cellular network
• ConduIT3 VoIP PBX: Asterisk Based Hybrid PABX Systems
• CallButler: Easy-To-Use IVR/Auto-Attendant/Voicemail server for Windows
• Cameronet: VoIP-PBX-Systems based on Asterisk with an Configuration Webinterface
• CarrierClass.net: GPL distributed, large-scale, highly-available IP PBX and provisioning system
• CenIP: Commercial IP PBX with a web config interface, in spanish.
• Clear Voice Telecom: Several communications solutions, including Hosted IP PBX, VoIP, and automated dialing systems.
• ConduIT Embedded AstLinux and Asterisk based VoIP PABX
• Contaque: PBAX based VoIP solution
• Converge: Hosted Enterprise PBX for SME and Call Centers from Corelynx
• Centile: Hosted IP Telephony & Enterprise iPBX Solutions
• Cisco CallManager
• Cisco CallManager Express
• CommuniGate Pro: Voice and data Internet Communications server with Active Dynamic Clustering and 99.999% uptime for all IMS
• Coms.Net: Business VoIP Solution & Hosted VoIP IP-PBX
• Convertec Asterisk based IP PBX systems, ViciDial based call center solutions. Hosted and virtual PBX. Remote Asterisk, FreePBX, and Trixbox support 24X7.
• Creacode: NicSC SIP Session Controller is high performance and flexible SIP Call Controller, Registrar and NAT Traversal solution. Easy integration with an external Radius, HTTP based billing server or an ODBC compliant Database.
• Cruise phone: embedded Asterisk PBX with 4 isdn interfaces, german and english config, with root access!
• CTC Connections: Multi-Tenant full featured IP PBX solution based on Asterisk.
• Cosmact COSMOS SIP Based CCXML and VoXML Application Server: High performance, carrier grade application server with CCXML and VoXML for application flow control. Supports SS7 ISUP, ISDN and SIP signaling interface. Available as general application platform for IVR and IVVR (Interactive Voice and Video Response) deployments or packaged products such as conference server, IP-PBX, SS7-SIP media/signaling gateway. Supports RADIUS for real time call billing.
• C-zentrix: C-Zentrix is a next generation Linux appliance providing all the contact center functions in a single box.

D

• DM Link Npbxskype, Asterisk PCI Card with competitive price.
• Daktela PBX: Commercial IP PBX with a web config interface, billing application, fax service, in Czech and English
• Datera Call-eX: a full featured telecommunications server (IP PBX) for large and small companies (fully scalable). Allows integration of previously introduced solutions (PSTN, GSM, VoIP) into one. Configured via Web interface. Advanced call routing (multiple VoIP and PSTN operators) and functionality (VoiceMail Server, FaxMail Server, CallCenter, CallRecorder, MOH Server, Intercom).
• DexgateMicro: A WEB-based VoIP Telephone Switchboard for voice and video, able to manage FAX, SMS/MMS, Email and Chat in a single solution. It includes support for SIP/T38 telephony, IVR, Conference, Videoconference, Call recording, WEB CTI and more. The software is 100% written in Java.
• Dialexia: IP-PBX software (SIP-based), VoIP Traffic Termination on Dialexia.net with Billing Management (Radius or SIP) with Calling Card support, Call Shop/Cyber Cafe software, IP Phones & Quintum & Mediatrix products
• DigAnTel, Automated install Centos/Asterisk/FreePBX

E

• EasyPbx:Hybrid IP-PBX Solution for Service Providers and System Integrators that control and monitor thousands of PBX trough a Web Management System based on Level (Provider, Reseller, PBX Admin, User). EasyPbx is commerical grade PBX software and it provides the key system functionality found in traditional Enterprise or SoHo phone systems. Administration based on an Ajax Web Interface on remote Server (VLSRV). Service Providers and System Integrators can use their Private Label on the system. The Linux Distro (200 Mb) created from scratch is performed to work with E1-T1 and above all BRI network. Real Time VOIP and PSTN Diagnostic and Alerting System integrated into the platform.
• EnGenius EnQue VOIP products: Low cost high feature asterisk based IPPBX, desk and WiFi phones.
• easyAsterisk GUI: December 2006: 2.2rc3 updated release with some features added.
• Easy Office Phone A complete PBX voip phone solution for small and medium sized businesses.
• EasySpeak PBX EasySpeak PBX is a 15 min install, it gives you a complete PBX solution for small businesses, it includes an auto provisioning system which autimatically sets up the phones and is also available for a 14 day free trial.
• EasyVoxBox.org A full featured IP PBX phone system. EasyVoxBox is based on Asterisk and freePBX and installs a complete system quick and easy. It gives full control and provides additional system utilities via the web based user interface.
• eDial Advanced Communications Server
• Elastix Also a pre-Configed CD w/CentOS & Asterisk + extras
• Enswitch - A full featured carrier grade soft-switch with pre-paid and post-paid billing, invoicing, multiple levels of reseller, full range of PBX features, calling cards, call shop, credit card integration, and much more. Built on Asterisk and SER, it supports clustering, high availability, and fail-over. In production today with systems up to high tens of thousands of users. See the feature list and the online demo web interface for more details.
• Epygi Quadro devices unite conventional PSTN telephony and high-tech IP communication. From the Quadro2x models, small IP PBXs for private users and teleworkers up to the Quadro16x models, fully featured IP PBXes to the QuadroE1/T1 Gateway and the QuadroCS Conference Server - there is a Quadro device for every business need. Distributed in Australia by Alloy
• Ernie Ernie is an open source VoIP application platform that integrates Web 2.0 design principals with next generation communications technologies, including VoIP, presence and web languages such as Python.
• Evolution PBX: Complete TurnKey Asterisk PBX for small businesses. Easy to use interface with advanced innovative features.

F

• FacetPhone Commercial IP-PBX, Business Telephone System
• Fonality: Asterisk-based IP PBX for SMBs
• FreePBX: GUI Frontend and PBX configuration for Asterisk. Supports modules for adding various functionality, but primarly designed as an SMB PBX system
• FreedomIQ: Hosted PBX - VoIP Business Phone System
• FreeSwitch: Open source cross platform (*nix, Windows) multiprotocol (SIP, IAX, WOOMERA/H.323) softswitch.
• Free H.323 Embedded Gatekeeper:Free H.323 Gatekeeper for H.323 devices registering and visiting
• Frontrange IPOS- solution includes SIP Communications Server with CSTA link for 3-rd party call control, IRV+router with GUI application builder, Unified Messaging voice mail server, TTS and ASR support, Microsoft Live Communications Server (LCS) integration, SoftPhone, Web-based configuration access.

G

• G1000 PBX http://www.globaliptel.com: G1000 PBX (hardware variant or hosted PBX).
• Gemeinschaft: A toolkit based on Asterisk. Designed for high availability and mass deployment. Configurable via GUI or shell scripts.
• GPBX: A fanless PBX with a nice GUI and lots of advanced features.
• Gridborg HMP Commercial Host Media Processing server with H.323 and SIP frontends, and simple ASCII control protocol. It can handle 240 ports on dual processor servers. It works in both Linux & Windows environments. It's client-server architecture enables you to use any programming or scripting language. Gridborg HMP is free for development purposes.
• Goldennet Technology: Embedded/Economical IP PBX for Small Business, allow upto 200 users.

H

• HANASHI - Pre-configured Asterisk-based solutions, servicing Buenos Aires, Argentina.
• HelloWorld: Commercial VOIP PBX
• Hi-Brid Norleaf Newtorks (Next Generation VOIP Solutions) - Asterisk based PBX
• Hotsip: Commercial SIP Server

I

• Intelligent Solutions Phils., Inc. (Philippines) - System Integration, Intelligent PABX(PSTN+GSM+VOIP) Solutions, Call Center Solutions, Network Infrastructure Consulting and Solutions.
• JmcSoft Distribution - Importer and distributor of quality competitively priced Voice over Internet Protocol (VoIP) and networking equipment.
• http://www.singcomm.com.sg/pabx/hkc/index.html The IP64 System, designed and developed by HKC Technology Limited, is using the VoIP as the core technology which could be implemented in a highly flexible and scalable system that fulfills all communication requirements and comes with automation features.
• Insido ipbx: spanish manufacturer of VoIP solutions backed by IBM eServers and Novell Linux
• iareaPhone Hosted iareaPBX Asterisk Servers, Pre built fully loaded and fully managed - Voice and Data Termination is available - iareaPBX User Company Administration and Billing System Call 212-981-1504 or visit Hosted iareaPBX Standard, Hosted iareaPBX Midrange IAX phones available
• Interactive Intelligence Commercial call center and Enterprise server solutions, Free SIP Proxy TRIAL
• Intel NetStructure PBX-to-IP Media Gateway
• ipcortex PABX Simple reseller friendly PABX system based on Asterisk. Emphasis on quick setup with simple web configuration for all features and auto configuration of phones for speedy and profitable mass deployment. Economical for 10-1000 users.
• IPsmarx Technology, Inc. is a leading Voice over IP (VoIP) solution provider and system integrator dedicated to delivering customer management and billing solutions for entrepreneurs, carriers, VoIP Calling Card Operators and ISPs.
• IVR Technologies, Inc. - IVR Technologies, Inc. is a leading software development company providing a fully integrated SIP based application, media and billing server to next generation networks.
• ICONSA Canada Inc. - ICONSA.CA is a Canadian Company whose objective is to offer communication services using high speed internet. Our idea is to offer the general public means of communicating with family and friends completely free or at a very low cost.]

L

• Linux LiveCD VoIP Server SER Proxy with prepaid support. All in one solution.
• Luxsys Inc. IP PBX with Call Manager based on Asterisk 1.2.x and 1.4.x. Call Center Solution.

M

• MOR Advanced Billing solution. Retail/Wholesale. For VoIP providers/Call Centers/etc. LiveCD available. Homepage
• Microsoft Response Point Microsoft's Small Business Phone System with Advanced Speech Recognition by Syspine. Extremely easy to set-up, use and manage.
• miniSipServer SIP based VOIP Server for MS-Windows. Powerful and very easy to use.
• Matrix IPPBX Xtreme Networks Commercial IPPBX System (SIP/IAX/H323).
• Magiclink IPPBX S1-series IPPBX BOX system, user friendly web control, full system in 1U/A4 size box, OEM for other company.
• MKC Networks: Available worldwide the MKC Networks 7000-series SIP Enterprise Application Server offers hybrid/hosted SIP-PBX functionality and stand-alone vertical market specialization including: conference server (500+ users), time of day routing, IPDR analyzer, auto-attendant, call recorder and adjunct ITSP manager for legacy systems
• MySIPSwitch: The SIP Switch is an experimental stateful SIP Proxy server sponsored by Blueface to allow the use of multiple supplier SIP accounts from a single SIP login. This is a free and open source software.

N

• Network monitor Network monitor with hardware and Asterisk package (dutch).
• NEGIA NexGen PBX: Turnkey Asterisk based VoIP PBX server appliances with complete web management interface
• Nortel BCM: Nortel Business Communication Manager Interoperability
• NovaTec: ISDN (BRI and PRI and UP0), IP (SIP), GSM (Cellular), Analogue, Media-Gateways and ATA's incl. T.37 and T.38 for Fax over IP

O

• Obelisk: Obelisk is the new VoIP virtual switchboard by Eutelia, completely remotised, easy to use (no software download is needed). Obelisk is the best way to optimise the management of phone traffic and expenditure within each company branch, among different branches and towards the traditional phone networks.
• Objectworld Communications: Objectworld UC Server is a Windows based Unified Communications Server with built-in SIP PBX and Unified Messaging platform for Exchange, Lotus Notes, and any IMAP4 server. Available worldwide, the UC Server offers hybrid/hosted SIP-PBX solutions including: video and audio conference server, time of day routing, IVR, auto-attendant, call recorder and ITSP access. Simple to install using Wizard-based applications, Fully SIP compliant, and will work with any SIP Phone, SIP Gateway or SIP Trunking ITSP.
• Octopus IP Communications Inc: Octopus IP offers a completely virtual package for VoIP, IP-PBX and Unified IP Communications services. SIP integrated voice, video and data services, from wherever you have access to high speed Internet.
• OpenPBX: PBX in Perl
• CallWeaver: open source IP-PBX software, vendor independent, cross-platform, PSTN and VoIP, software fax and fax over IP.
• OpenSER: GPL SIP server
• OpenSIPg: SIP service platform for operators. A multitude of features

P

• Pandora Networks: Worksmart Multimedia PBX
• Pan Tone Communications: One Stop Solution to Office computer networks and VoIP PABX telephone systems.
• Partysip: Open Source SIP server
• Patton SIPxNANO: compact full-featured VOIP IP-PBX
• pbxnsip: Commercial SIP-based PBX with SRTP support
• PBXpress: 24/7 supported IP PBX for business clients, PBX cluster, auto VoIP phone discovery and configuration
• Pingtel: Enterprise-class SIP PBX for Linux, SIP Proxy Servers, SIP Softphones and User Agents
• Power Systems: Talkswitch PSTN/VOIP Hybrid Small Business Phone Systems. All analog, all SIP VOIP, or mixed.
• RadiusCat RADIUS Billing Software: Windows RADIUS Billing for Quintum Version 1.2.3 RELEASED...

R

• Resonance Networks: Piccolo IP PBX Platform based on Asterisk
• RUOK Dialer: DSC Senior check autodialer using Analog or VOIP lines.
• Radvision: Video conferencing equipment and web software. SDK solutions for VoIP, SIP, H.323, Megaco, MGCP; SIP server; IMS 3G-324M products; ECS Gatekeeper, MCU, gateways
• Ring Carrier: Ring Provider Web delivers Class 5 Softswitch with Provider, enterprise, End-User interface. VoIP fabric and enterprise building block architecture. Solves Asterisk scalability and user interface issues.

S

• S5000: SIP/H323 VOIP Softswitch and IPBX system for Linux and Windows platforms, with advanced call routings, audio/video conferences, and more. Web based. Open APIs C/Java available. From PC to appliance boxes. Ready in minutes.
• ScopServ: Complete Web GUI for Asterisk & Commercial VoIP PBX (http://www.scopserv.com/)
• Selintra SARK: A professional Unified Communications Server on a hardened Centos 4.2 platform.
• Selintra SARK: Documentation pages.
• SerComm Original maker of embedded web GUI based Asterisk IP PBX + SIP phones & gateway — ISO 9001 certified production.
• Signate Signate, Open Source Carrier, Provider and Enterprise VoIP Solutions
• SIP Express Router: Open Source SIP Proxy
• SIPpy: Open Source carrier grade RFC3261-compliant SIP Stack and Back-to-Back User Agent (B2BUA)
• SIP Reality: Reasonably priced commercial carrier grade SIP Softswitch for Service Provider Community
• Sipcat Downloadable VoIP PBX software application (ISO install) based on Asterisk
• SIPPSTAR: SIPPSTAR Proxy Server Software
• SIPfoundry: Open source SIP PBX for Linux, open source source proxies, open source SIP softphones, open source SIP stack
• Siproxd: Open Source SIP and RTP proxy
• SIP Proxy Server: Enables service providers to deploy scalable VoIP and video telephony applications and services. Standards compliant with a comprehensive feature-set.
• SIPSP-PBX and Proxy: Commerical VOIP PBX and proxy for ISPs and Enterprises
• Mini-SIP-Proxy: A small SIP proxy which allows you to link local SIP phones together (for home use, written in POE perl)
• sipX The SIP PBX for Linux (open source) sipX, sipX Architecture sipx_screenshots, SIPfoundry, Pingtel
• Blue-Wireless SoftBX Windows software VoIP-Telephony Platform scalable 4-512,000 ports, SIP, H.323, CAPI
• SOFAswitch Spanking new PBX from Derek Smithies (of OpenH323 fame and more) Have a seat!
• Soft-Switch : Carrier Class Soft-Switch
• SOHO PBX World - Hybrid VOIP/PSTN Phone Systems and VOIP phones
• Sphericall: Commerical VOIP PBX
• Spiderstar:: Commercial VOIP PBX
• Stalker Software:: CommuniGate Pro VOIP, email, IM, and unified messaging server
• starface pbx:: STARFACE PBX is a professional asterisk based Voice-over-IP solution.
• A market leader in the realm of voice and data communication: Storm are committed to providing cost effective telecommunication solutions to South African businesses.
• Sutus Inc.::Sutus Business Central(tm) is an integrated small business appliance combining VoIP server, file server, email server, firewall, wireless access point, VPN remote acces
• Switchvox: Based on Asterisk, Switchvox is completely web based and comes preinstalled.
• SWYX: Commercial VOIP PBX
• Sylantro: SIP Application Server
• SysMaster VoIP PBX - SIP/H323 Class 5 IP PBX server for telecom applications.
• Syspine Microsoft Response Point Syspine's Small Business Phone System with Advanced Speech Recognition by Microsoft Response Point. Extremely easy to set-up, use and manage.
• Surf Communication Solutions, Ltd.: MoP (Media over Packet) Triple Play (Voice, Video, and Modem/Fax/Data) conversion solutions to communication equipment manufacturers.

T

• Talking SIP - Turnkey platform with a fully integrated application (IVR enhanced services), media server and real-time billing engine that supports prepaid, postpaid, flat-rate, multi-tier and packaged minute plans + much more
• Talkswitch: VoIP - PBX system for less than 32 users per location
• Tedas: Commercial VOIP PBX
• TEDAS VoIP DECT PABX: VOIP PBX with cordless DECT phones
• Teleon Networks - Low cost soft PBX based on PCTel modem and Skype.
• Telephone Reassurance - PBX for contacting elderly ensuring they are OK.
• Telesis - Commercial medium size IP PBX: PX24
• Telesis PX24S - Capacity optimized version of the PX24
• Thirdlane PBX - Complete Asterisk based PBX for SMBs. CentOS based CD - easy to install, easy to configure and easy to manage
• Thirdlane PBX MTE - Multi-Tenant Asterisk based solution for service providers offering hosted virtual PBX services.
• Thirdlane PBX Manager GUI - Webmin based GUI for managing Asterisk based PBXs.
• TigerPBX - IP PBX component of TigerCube products
• TransNexus VoIP Routing, Accounting & Security
• Trixbox: (the project formerly known as Asterisk@Home) Pre-Configured start up cd with CentOS and Asterisk + add-ons (FreePBX/AMP, FlashPanel, etc)
• TrueBill from Cylogistics Complete billing solution for Pre-Paid, Post-Paid, Real Time, On Demand, Credit Card, Taxes. Integrates with most VoIP switches including Asterisk, Ring Carrier, YATE, TrueSwitch, Nextone & more.
• TurboPBX - Virtual PBX that breaks new ground in Business Phone System Solutions for a fraction of the cost of less effective systems on the market.
• TekSIP by Yasin KAPLAN - Freeware SIP Registrar/Proxy for Windows XP/2003/Vista

U

• Ubiquity SIP Application Server
• UTM5 by NetUP Inc. - a high performance VoIP RADIUS Server developed in C++, SIP and H.323 compatible, also able to parse any CDR files

V

• VentureVoIP PABX Systems: New Zealand Based PABX Supplier
• Veraz Networks Softswitch and media gateways
• VegaStream VoIP Gatways : reliable IP convergence solution
• Vidanetwork Technologies, Inc. IntelliGate IP PBX (Industrial parts, Fanless design) supporting 10 to 2000 users. Web-based admin, end user interfaces w/ integration of CRM system
• VOCAL: Open Source toolkits, servers and gateways
• VocalData: SIP Application Server
• VoipCenter SIP widely used commercial SIP Application Server and SIP Media Server
• VoiceCenter IVR widely used SIP IVR platform
• VoIP Gateways: FXS, FXO, PRI, SS7, C7 gatewayse
• VoIP-One GmbH : Commercial VoIP/ISDN/GSM PBX
• VoipRent Turnkey hosted VoIP softswitch for pc2phone, web2phone, callback, prepaid cards, callshop billing
• VoIP TelePort: a full VoIP PBX on a USB memory stick w/web based management
• voipEntity: safe and economical IP PBX based on Linux Asterisk's architecture. Ideal for SoHo customers.
• VOIspeed IP PBX: VOIspeed is an IP telephony software technology for advanced and flexible solutions for every type of requirement and company.
• Vonexus EIC IP PBX on Microsoft/Intel platform
• VS-1 Full-featured Asterisk appliance from The VoIP Connection
• VoxBox is an Open, Simple, and Standard package for VoIP PBXs based on CentOS, Asterisk, FreePBX, and Webmin.
• Vox Office PBX Vox Office is a Full Blown Asterisk Management system with windows admin apps and web services gateway.
• VoxSy PBX VoxSy is an Asterisk based IP PBX system with support SIP, IAX and Zap trunks.
• VoipSwitch ITSP Solution: Like to start your own Vonage business: pc2phone, web2phone, H.323, SIP, IVR, callback, prepaid cards, callshop billing, Termination wholesale Resellers, up 1000 concurrent calls.

W

• Windows VOIP Business Phone System: VOIP and ISDN Ready, Very Easy to Manage and Configure. Highly Featured. Good Alternative to Asterisk.
• Wildix: Gateways Series, Advanced Asterisk based gateways (WMS onboard).

X

• Xoasis Networks Prodigy VoIP PBX Full VoIP PBX with support for 20-250 users that includes full web based management and auto provisioning of IP handsets from Polycom, Cisco, and Grandstream
• Xorcom TS-1 - Asterisk based solid state PBX. Full VoIP. Supports up to 100 concurrent SIP calls (G711). One PCI card. Supports Astribank USB Channel banks.
• Xeepe Project presents a fully integrated SIP & ISDN Telephone System.

Y

• YATE Yet Another Telephony Engine is a software PBX running on Linux with support for Zaptel PRI cards and H.323 protocol.
• Yeastar BizSky: Call Manager for Traditional PBX (PABX).
• Yonder: Turnkey Asterisk based VoIP PBX server appliances with full web GUI.
• Yxa: Open Source SIP library and server

Z

• Zervina Technologies VoIP CPE Configuration and Firmware Management Platform
• Zultys Linux based SIP PBX server appliance with integrated private IM system
• Teleco:NEC and Toshiba VoIP telephone systems in NY and NJ
• ComWealth:CW Billing&Gateway Complete PSTN/VoIP switch,based an Asterisk. includes prepaid&postpaid billing, Calling Card facilities.Supports SIP,H323,IAX,ZAP,MGCP.
• VPBX24: Hosted Asterisk Server with carrier grade VoIP terminations and SMS
• Voip2system Callback Solution: Callback, Pc2phone, Calling card, and Hosted Solution with dedicated server.
• Zaphardware is an open source telecommunication equipment supplier

See also

• Open Source VOIP software