SIP Compliant IP PBX
The 3Com® Convergence Applications Suite brings a broad range of real-time communications applications into a single, converged portfolio that includes IP Telephony, IP Messaging, IP Conferencing, and IP Contact Center server software modules. Plus, a multi-OS Convergence Center client brings powerful software directly to a user's desktop. This innovative product line works together to deliver next-generation dial-tone, presence, messaging, conferencing, and customer contact center capabilities.
With the Session Initiation Protocol (SIP)-based VCX system, the call controller integrates a users' state with the presence server to enable message management within the Convergence Center client. Users can initiate calls by clicking or create a conference call by simply dragging attendee names across the client. The system also supports desktop video conferencing and document sharing services. Further information >>>
Visit Interactive 3COM's SIP Showcase >>>
2CanCall® - 2CanCall® SIP PBX designed for UK Business users. Unlimited extensions; unlimited lines and fully customisable to a client's requirements.
3CX Ltd - Develops 3CX Phone System for Windows; a SIP based IP PBX / VOIP Phone system. Both commercial and free editions are available. Also has a free VOIP phone.
A3 Communications - A3 Communications is an Avaya Business Partner and an Inter-Tel Dealer with several locations in SC. We are certified to service; sell; and install SIP based IP PBX solutions.
Adore Infotech - Adore Infotech setup and configure open source is a complete SIP PBX in software. It runs on Linux and provides all of the features.
Ahead Software AG - SIPPSTAR IP PBX software for small and medium enterprises; with answering machine, call groups/hunt grous, access to ITSP services and more
Allworx Corporation - IP PBX with converged messaging, SPI firewall and Group Collaboration. Allows you to connect up to 99 remote sites and Internet based LD carriers.
Arrayvox Communications - End to end IP-PBX SIP Solution
Asignate - Sip Based IPPBX for service providers and or enterprise built on Open source. easy to use GUI for both administrators and users reduce overall operating costs an create a quick ROI.
Asterisk - SIP compliant open source linux PBX
AuPix Ltd - Adds video functionality to features typically associated with voice only. This can be to an existing VoIP system or to a TDM system without the need to move to VoIP. Supports SIP and H.323.
Avaya Communication Manager: Avaya Communication Manager is the next generation of Avaya call processing software. Designed as an open, scalable, and highly reliable telephony solution, it effectively scales from under 100 users to as many as 36,000 on a single system - and to more than one million users on a single network. Designed to run on a variety of Media Servers, Communication Manager provides centralized call control for a resilient, distributed network of media gateways and a wide range of analog, digital, and IP-based communication devices. Communication Manager integrates with the Avaya Converged Communications Server to become a telephony feature server that supports seamless communications between existing analog, digital, and IP phones and SIP-based endpoints. With Communication Manager Extended Access, standard SIP phones can even gain access to advanced non-SIP telephony features.
For more information on Avaya Communication Manager, click here.
AYCTelecom Ltd - IPCTS Low Cost SIP IPPBX with CTI and Voicemail.
Baihe multimedia technology Co.; LTD. - Magiclink S1000 SIP IP PBX released ; which was based Asterisk ; GUI friendly ; powerful features; 200 extensions and 50 concurrent calls.
BPL Telecom - The BPL WiFiFone is SIP based mobile WLAN phones to make VoIP calls over local and wide area IP networks; while in the WLAN coverage zone or HOT spot. It works with IP PBXs; conventional PBX with VoIP
Brekeke Software - Brekeke PBX is a SIP-based IP-PBX system for call centers; enterprises and service providers. Brekeke PBX comes in three editions: Basic Edition; Pro Edition; and Multi-Tenant Edition.
CarrierClass.net - CarrierClass.net is the Free Software; large-scale; highly-available; repeatable; SIP-based design for telephony.
Centile SA - Hosted IP telephony Server (also LAN-PBX) providing full-featured PBX, with NAT traversal, ENUM technology, CTI and IVR server embedded
Centrepoint Technologies - Starting at $1,795 for a feature-rich complete system, the TalkSwitch 48-CVA is a Hybrid SIP PBX with 4 VoIP trunks and integrated SIP server.
ChinaRoby Co.; Ltd. - As a leading business voip provider; ChinaRoby.com is supplying with IP PBX card; business voip phone; SIP gateway ATA; USB phone; GSM cell phone. with low price and high performance.
click4pbx - Click4pbx is a leading vendor of VoIP; SIP and IP Telephony products and solutions; serving businesses; telecoms; and service providers worldwide.
Connect-IT Communication - Oke COmmunicator Communication center for ACd, PBX, IVR and VOicelogging on Full IP (SIP)
Coalescent Systems - Voxbox, a feature-rich and cost-effective hybrid telephony server, combines the best of SIP and POTS. voxbox is a scalable solution designed for small businesses.
Computerised Business Systems Limited - AYC IPcts - converged IP telephone system. Based on SIP standards; PBX connects SIP handsets and to both PSTN and 3rd party VoIP providers for a complete telephone solution.
Creatyv Systems - CreatyvNet is a SIP Windows based IP-PBX. Including all features of legacy Pbx; CreatyvNet supports all standard SIP devices : Gateway; Carriers; SIP Phones; Softphones...
Cylogistics - Cylogistics is a specialty distributor that provides numerous SIP products and Asterisk related solutions including Digium, Sipura and Sayson.
CTL Inc. - Delivering SIP Integration Solutions for IP Telephony.
Data Technology Consulting Pte Ltd Singapore - Fully integrated business communication solutions for small; medium up to large sizes companies based on affordable VoIP SIP appliances and leveraging on your valuable existing infrastructure.
Delacon - Speech Recognition IVR with Web management from DELACON. Will connect to any SIP phone. DID numbers can be setup on your gateway. You can manage your clients customer via online interface. Free Demo
Dialexia Communications Inc. - DIAL-OFFICE - 100% SIP compliant IP-PBX
e4 - e4 LLC has integrated the popular open source SugarCRM application with Asterisk. This offering will be available Q1 of 2006. Features include screen pops; power dialing and more. supports SIP.
Fonality Inc. - Fonality PBXtra $995. Asterisk based IP PBX, SIP based VoIP, Analog compatible, unlimited extensions, unlimited auto attendants, ACD, Outlook Integration, MP3 Music on hold, unlimited VM and more.
FrontRange Solutions USA Inc. - HEAT® Plus Contact Center 8.0, an IP Telephony solution designed for SMEs. -- SIP-based architecture.
Funkwerk Enterprise Communications - SIPserve: IP-PBX from Funkwerk Enterprise Communications. Works with 10 concurrent SIP-profiles. Works with ISDN gateways basing on CAPI:
Heppner EDV - SIPPSTAR and Spiderstar IP PBX-solutions
Iagu Networks - SlipperPABX is a SIP standards-based Voice over IP system, making it easier and affordable for clients to integrate any SIP compliant device into their network.
Icecom Ltd. - The Icecom Multimedia PBX is a SIP-based; full featured corporate switch with additional new convergence services.
ICONSA.CA - ICONSA.CA is a Company whose objective is to offer free communication services using high speed internet (SIP). Our idea is to offer the general public means of communicating with family and friends.
Infinite Shanghai Communication Terminals Ltd - Infinite LCG IP PBX product; support VPN; SIP servers and IP PBX function (voice mail; call forward...)
Inter-Tel, Inc. - Inter-Tel is an industry-leading provider focused on the communication needs of business enterprises; and is committed to SIP; being one of the first to use SIP in its products core developments.
Intertex Data AB 
PBX functionality for the small office! The SIP Switch software upgrades your Internet Gate SIP capable firewall with PBX-like features integrating combined usage of SIP hard/soft phones and PSTN.
IPEYA - SIPS IP PBX with the integrated voice and data services - support for the remote VOIP users and branch office distributed IP PBX
Wholly-owned Interactive Intelligence subsidiary, Vonexus Inc., offers Enterprise Interaction Center® (EIC), the only SIP-based all-software IP PBX developed exclusively for Microsoft SMB customers. In addition to supporting MS Business Solutions applications such as Great Plains, Navision, and MS CRM, this IP PBX comes with a host of productivity-enhancing features, including Windows or Outlook-based softphone, Exchange-based voice mail and unified messaging, auto-attendant, workgroup routing, integrated IVR, and both Internet Explorer and SharePoint Portal-based user interfaces for mobile users.
Now for a limited time only, Vonexus is offering FREE EIC software for up to 50 stations. Find out more at http://www.vonexus.com.
Visit Interactive Intelligence's SIP Showcase >>>
iPBX Systems - The LanPBX has been developed in-house to address to SME market. This SIP based PBX is scalable from 5 to 200 extensions with ITSP support and includes a GUI; Voicemail; Conferencing and the LanMS.
Comvoz Communication - SIP/H323 ASP wholesale Retail; A-Z; Multilevel; Multilanguage; Multi-currency; Multi-Company; Pre-Post pay. Phone2Phone; IP-Phone Calling Card; IVR; Virtual PBX; Collect Call; Call Booth; PinFree
GAYTES Information Systems - IP based PBX - using Asterisk and Digium Boards. VoIP using SIP Protocols and all applications from Voicemail; IVRS; Unified Messaging; Call Centers and Dialers.
GlobalTouch Telecom - This Hosted VoIP; SIP-enabled solution; is the most scalable; powerful and full functional software-based enterprise communications platform in the industry.
insido ipbx are a new IP telephony systems for business supporting standard SIP telephones. Up to 20; 70 and 300 users depending on the model. Advanced features with a very interesting prize.
Intuitive Voice Technology - Introducing Evolution PBX by Intuitive Voice Technology the industry's most advanced SIP based phone system for the SMB market. Visit our website for more information and a FREE 30 day trial and demo.
Jive Communications; Inc. - Jive Communications provides SIP-based; hosted PBX phone systems and service to resellers and end users
Kapsch CarrierCom AG - With our "Hosted IP-PBX" solution Wireline and Wireless Operators are now able to replace the PBX equipment of their business customers and gain new market shares with hosted voice services.
Lanner Electronics Inc. - An innovative Hybrid IP-PBX solutions for small-and-medium businesses. The IPT-1010 from Lanner is ASIC architecture with SIP-Compliant; rich-features; IP Communication platform. SIP-T supported.
Lantone Information Systems LLP - We provide VoIP services; Digium Hardware Products; Call Centre Solutions; Call Accounting Software; SIP Servers; IP PBX Solutions; and many others. Call for assistance
LignUp Corporation - LignUp delivers a web services-based VoIP communications platform deployed with IP-PBX; IP-Centrex; Voice Mail; Unified Messaging; and IVR web applications; and is 100% software & SIP-based.
LusoSis - Planet IPX-2000 - IP PBX SIP 2.0 (RFC3261); Max. 200 SIP IP phones/50 concurrent calls; 4/8 FXO interface for PSTN; Forward to voice mail on no-answer; Configurable IVR prompts. Up to 4 PBXs cluster.
MultiASP - We offer Virtual Office service with access numbers on US and multiple countries around Latin America. The local calls are forwarded to a SIP number or Local # anywhere around the World
Neobits; Inc. - Neobits offers a range of SIP-based IP PBX systems including Talkswitch; Zultys and Epygi; gateways; PoE switches; SIP phones; and Asterisk-compatible hardware.
Nero AG - The SIPPSTAR IP PBX is a SIP compliant IP PBX software that runs on any computer with linux or Windows OS (XP/2000), perfect for small and medium enterprises.
NetSapiens, Inc. - IP-PBX solutions for small and medium sized businesses.
New Rock Technologies - SIP/MGCP MX8/MX50/MX100 Access Gateways(4-48 FXS/FXO ports); MX100 SIP-PSTN Trunking Gateway with ISDN(1/2/4 T1/E1); EMS ; IP Phone Supermarket Billing Software.
Oki - High-end IP-PBX telephony server that implements Microsoft .NET architecture. IPstage SS9100 supports SIP (session initiation protocol) and H.323 for the VoIP communications protocol. SIP provides a presence management function that allows users to confirm whether the contacting person is in the office, in a meeting, or out of the office. IPstage SS9100 offers various communication methods based on SIP, including Oki's msg@POINT advanced softphone, instant messaging, email, and voice mail. Unified messaging is also available.
OneConnect - OneConnect is the leading provider of hosted IP/SIP Communications in Canada with the most effective and reliable business-class solutions.
OnlyOne - Using SIP; gives your company all the features & benefits of an IPBX while extending the life of your existing phone system & providing increased flexibility at the lowest cost per user.
Option Service - SIP IPBX VoIP Complet and Integrated Solutions
Pandora Networks - Pandora Networks introduces Worksmart™; the leading On Demand IP Communications SIP based solution designed for the SMB. The service includes voice; video and messaging and collaboration.
Palavon - For less than $99.00 per month a small business can have an enterprise PBX and CRM. SIP Orig/Term Services.
pbxnsip Inc. - SIP PBX based for Windows and Linux supporting SIPS/SRTP
PBXpress Communications; Inc. - PBXpress is a SIP compliant IP PBX with automatic call recording and PSTN backup.
PGSL - PGSL provides IP PBX ; SIP phones and customized SIP based SOHO solutions.
Pingtel Corp. - Opensource SIP PBX and so much more.
Planet Reach, Inc. - The AVODA IP-PBX from Planet Reach is a scaleable advanced communication's platform combining PBX features,VoIp integration, GUI Admin, IP Security, SIP support protocol.
Power Systems Direct - Talkswitch IP PBX; SIP compliant. Gateways; IP phones; T-1 lines; phone services; nationwide installation.
ProSIP - Complete SIP PBX solutions & multimedia call center
Resix - Netxserv is a ip-pbx with securized internet access integrated (Firewall, Vpn, road warrior connexion)
Simton Technologies Ltd. - Hybrid IP PBX supports up to 144 analog phones and/or 256 SIP phones, having call center and other rich PBX features.
SIP Phone Center - Zultys MX30 1-30 user SIP IP PBX with pstn connectivity.
VoiceMail/ACD/IM/Presence all come as standard.
SIPfoundry - sipX - The open source SIP PBX for Linux. sipX is a commercial grade IP PBX complete with all major calling features, voice mail and auto-attendant. sipX offers Web based management of both the SIP PBX as well as all the attached phones and gateways. sipX is available for free download as an open source project from SIPfoundry.org
sipNET telecom - Installation; programming and maintenance of Asterisk based PABX phone systems. SIP trunks; ISDN and analogue PSTN lines. CAT-5e & CAT-6 cabling. Wi-Fi integration with mobile phones. UK based.
Siprack Systems - High Availability IP PBX servers Linux OS with CISCO7960s
SME Telephony - AYC Telecom IP cts for the SME- SIP PBX with Auto Attendant; Voice Mail; Music on Hold; Call Queing; Desktop Console; 16 lines; 25 Users and 24 lines 50 Users. Affordable Feature Rich (AFR)SIP PBX
snom technology AG - The snom 4S products provide enterprises with complete VoIP solutions based on SIP for SMEs and ITSPs. Existing telecommunication equipment can be replaced or integrated.
SoftQuest Solutions Pty Ltd - A comprehensive SIP/IAX based Virtual Gateway System with realtime Prepaid and PostPaid billing. Broadband and PPPoE Integration; Wholesale; Virtual Fax; SoftPhone and Callback Solutions.
SOHO PBX Consulting Inc. - Talkswitch SIP compliant IP PBX; IP phones; and more. Wholesale only; serving US resellers nationwide SOHOware; Inc. - BroadTalX SIP IP-PBX is a distributed IP telephony manager combining full PBX functions with SIP server/registrar; routing and firewall gateway. 200 extensions are supported with up to 8 PSTN inputs.
Sonetel - Sonetel's free SIP based Phone System is uniquely delivered either as software or as a service across broadband. It connects to any local phone company worldwide across phone lines and broadband.
Sphere Communications Inc. - Award-winning Sphericall IP PBX offers high quality VoIP; presence; unified messaging; IM; conferencing; desktop video; softphone; SIP and more. Enterprise-class softswitch runs on existing networks.
Stitel Systems Inc - ICG (Integrated Communication Gateway): Single box Software based SIP/H323 IP-PBX with Voicemail, Conferencing, IP Router, Firewall and Gateway
SVA Networks - SVA Networks LCG315 is a real-time; secure; communication gateway for SMB. The LCG315 provides fully featured SIP servers; SIP PBX; integrated stateful inspection firewall and VPN support.
Swyx Solutions - SwyxWare; leading software-based IP telephoney solution with SIP; integrates all your business telephony; Internet; email & fax services into one package and offers extra features
SysMaster Corporation - megaSwitch Class 5 IP PBX offers Auto Attendant (IVR); Voicemail; Unified Messaging; Follow-me; and Conferencing. Support for SIP; H323; MGCP; SS7; GR-303 protocols.
T3 Telecom Software; Inc. - Next-generation SIP-based unified messaging solutions including voice mail; speech recognition; text-to-speech; voice biometrics; interactive voice response; fax and automated attendant functionality.
Talk Is Cheap Inc. - IP PBX features business class features such as auto attendant, extensions, voicemail, etc. Talk SIP user to SIP user or between SIP user and PSTN user.
TalkSwitch - Starting at $1; 795 for a feature-rich complete system; the TalkSwitch 48-CVA is a Hybrid SIP PBX with 4 VoIP trunks and integrated SIP server.
Techland Systems International - SIP; Techland is Online Email Archiving Services solution Management Provider and Email Archive Services Management; Email Archiving Software Appliances; Services Tools; techland services
Telecom Matters Corp - IP PBX using SIP telephone sets and SIP ITSP providers. Fully functional; flexible; and customizable. Denver; Colorado; US
Teleprime - SIP_IP_PBX; 2SIP Phones; 2 Analog Phones -Remote Install; Support; 2 VoIP and 2 Analog Phones - $995* Price includes: 1 PBX; 2 VoIP Phones and 2 Analog phones; assistance with config.
Telesis A.S. - Telesis PX24; a complete voice communication system; which combines various TDM interfaces and IP components. All-in-one solution with SIP; H.323; SS7; ISDN; CAS; Caller ID; V5.2 signaling support.
TeleSoft International Inc. - TsGATE is an integrated software SIP to PSTN Gateway design kit that translates the packetized messages on IP networks to the TDM messages used on the digital PSTN networks. Available in source code.
Telesis A.S. - Telesis PX24S IP PBX: FXS; FXO; E&M; Digital; BRI ISDN interfaces. Up to 1024 SIP user agents. Various codecs. AES256 encryption. Integrated digital voice recorder with 100 hour recording capacity
TeleSym - SymPhone Enterprise VoIP System. SIP (Session Initiation Protocol) and H.323, which are supported using HMP software.
TeleWare - TeleWare's iX product is an open standards based end to end IP telephony switching solution (the software architecture for an IP-PBX). SIP was the obvious protocol to use.
Thinking Phone Networks - Provider of SIP based managed PBX and other SIP based services. Covad partner for SoIP. Excellent customer service.
Topex - Topex VoisTel is a SIP VoIP Private Branch Exchange perfect for small medium business environments. It offers full PBX functionality and services while enhancing the enterprise communication.
Uniden America - The Uniden UIP200 is a SIP VoIP phone that is RFC 3261 compliant and can be used with an IP-PBX or as an IP Centrex solution.
VCOMM UK Ltd - VCOMM are the exclusive UK providers of the award winning WorkSmart platform from Pandora Networks. The IP Centrex 'like' SIP service includes all the usual voice elements + IM; Web Contact Centre etc
VigiNetworks - French company delivering full VoIP solution till 30000 phones. Support SIP, MGCP and skinny protocol.
VOCAL Technologies; Ltd - We offer complete; scalable SIP-based ATA and HPNA Reference Designs with an extensive feature list; secure voice communication; world-wide configurability; and our highly optimized software suite.
Voice IP Solutions - VoiceIP Solutions is a network telephony integrator, specializing in Asterisk Telephony Platform integration.
VoiceMailTel - VoiceMail Tel; your company's phone glance. Get everything you expect from your current phone company plus better services and lower prices. SIP PBX.
VoiceWise Technologies - SmartPBX is an analog/digital/VoIP (SIP & H.323) converged communications phone system that combines telephony, voice recognition, and computer control into an affordable package.
voip2me - voip2me is looking for Resellers in Middle East and African Countries to sell inexpensive and high quality VoIP-SIP based PABX & Services. In addition we recommend supplementing VoIP technologies.
Vonic Australia Pty Ltd - Vonic's VoIP Services help your business communicate on a new level. Enhancing employee productivity; reducing operational expenses and gaining efficiencies with support for protocols such as SIP.
Welltecch Computer Company Ldt. - The Welltech Telephony SIP Proxy WellSIP 6500 provides call-control features to enable service providers to quickly and reliably deploy next generation packet-voice networks. Auto NAT Traversal .
Wuchuan Network(shenzhen) Limited - Smart dial, Group answering, Extension answering as switchboard, Call restriction, Call’s Conference Room Call queues, IVR Function setup, Personalize announcement, SIP 2.0
ZapHardware.com - ZapHardware is an Open Source telecommunications supplier; the complete and alternative resource on Asterisk Open Source PBX/SIP.
Zultys Technologies - MX250: SIP based all in one box IP-PBX, Voicemail, ACD, Gateway, Auto Attendant, Presence, Instant Messaging, Unified Messaging.