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SIP

Software

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3CX Session Border Controller

free

3CX Ltd

3CX includes the 3CX Tunnel allowing easier bridging of remote 3CX Phone Systems and connecting remote extensions...

3CX Tunnel combines all SIP (signaling) and RTP

MUVConf

free

Vitali Fomine

MUVConf is an open source multi-user video conference client for SIP server compatible with WebSocket...

video conference client for SIP server compatible with WebSocket

Pidgin SIPE plug-in

free

Anibal Avelar

This project develops a third-party plugin for the Pidgin multi...

the extended version of SIP/SIMPLE

Mars Dialer

Mars Dialer is a mobile and PC application which allow you to make calls through Sip...

to make calls through Sip Server. The program empowers

Billion Softswitch

ProfInfoTech

Billion Softswitch is an innovative transit proxy server designed to simplify...

VoIP-networks based on SIP and H.323 protocols

Fax Voip Softphone

FaxVoip Software

Fax Voip Softphone - SIP/H.323 software telephone. Call Recording. Playing audio messages into the telephone...

is a powerful and unique SIP / H.323 software telephone

Smart Sip Phone

Unicorn

Smart SIP Phone is a platform for Smart Dialer. It has a a user...

Smart SIP Phone is a platform

StarTrinity SoftSwitch

free

StarTrinity.com

Free Windows-based SIP Softswitch with integrated billing for VoIP wholesale, GSM (grey)...

audio stream (for SIP-bluetooth-GSM...trunks and SIP phones Protocols: SIP over UDP

SP365

free

Welltech Computer Co.

SP365 provides pre-paid or post-paid features at PC windows based softphone...

3. Intelligent NAT Traversal : SIP Proxy 6500/6550...voice packet and SIP signal with encryption

sipSekron

Sekron Digital

VoIP SIP Client SDK

conaito Technologies

Usniper

Rough Ideas Inc.

USniper is a simple tool that runs on your computer...

Introduction: USniper is a simple tool that runs on your computer

Mizu VoIP Server

free

Mizutech S.R.L

The Mizu VoIP Server -Softswitch is an all in one enterprise grade soft switch solution with support to SIP...

H323, all sip related protocols, SIP-H323 conversion...be routed with other sip proxy

SkySipTel PC2Phone

free

SkySipTel

A multifunctional client software which objective is to ensure high...

convenient communication tools including SIP softphone

Schedule Input Program

free

GSA

The Schedule Input Program (SIP) is a Windows based program designed to allow GSA...

The Schedule Input Program (SIP) is a Windows based program

BRAVIS Galaxee

BRAVIS GmbH

With BRAVIS Galaxee you can communicate and transfer files with up to 10...

Your son on a student exchange, your sister in Australia, your boyfriend in Canada

MAX SIP ActiveX

MAIN Telecom, Inc.

A powerful and highly versatile VoIP SDK to accelerate development of any type...

application, like e.g. a SIP soft phone, teaching...other. Deliver SIP-based communications

Voipian

free

Voipian GmbH

Features: -Call all Destinations for free -No basic fee, contract can be terminated at any time...

the user account. -Free SIP-Account -SIP connectivity via Softphone

snom 4S Media Server

snom technology AG – VoIP Phones

The snom 4S media server is a turnkey solution for handling media in SIP environments...

media in SIP environments. Using the SIP protocol...well as with other SIP proxies, registrars

Aculab Media System (AMS) CSharp Client API

free

Aculab

The AMS C# Client API is supplied as strong-named .NET assembly and is fully Common Language Specification...

classes that control individual SIP calls and associated

SIP

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