VoIP Links

VoIP & SIP Innovations

IETF – The Internet Engineering Task Force: SIP Working Group

The Internet Engineering Task Force (IETF) is a large open international community of network designers, operators, vendors, and researchers concerned with the evolution of the Internet architecture and the smooth operation of the Internet. It is open to any interested individual. The Session Initiation Protocol (SIP) working group is chartered to continue the development of SIP, currently specified as proposed standard RFC 2543.

Columbia University Department of Computer Science – SIP

The Session Initiation Protocol (SIP) research and developments of the Columbia University, Computer of Science Department, organised by the Professor Henning Schulzrinne.

The SIP Center

The SIP Center is a portal for the commercial development of the Session Initiation Protocol. Serving both the SIP community and the wider industry.


The SIP Forum's mission is to advance the adoption of products and services based on the Session Initiation Protocol.

ITU – International Telecommunication Union

The ITU, headquartered in Geneva, Switzerland is an international organization within the United Nations System where governments and the private sector coordinate global telecom networks and services.

Open Source VoIP Products


Vovida is a communications community site dedicated to providing a forum for open source software used in datacom and telecom environments.

SER – SIP Express Router

SIP Express Router (ser) is a high-performance, configurable, free SIP (RFC3261) server. It can act as SIP registrar, proxy or redirect server.


Asterisk is a complete PBX in software. It runs on Linux and provides all of the features you would expect from a PBX and more. Asterisk does voice over IP in three protocols, and can interoperate with almost all standards-based telephony equipment using relatively inexpensive hardware.

IP Telephony Magazines

Internet Telephony Magazine

The online site of the TMCnet Internet Telephony Magazine.

Communications Convergence

The online site of the CMP Media Communications Convergence Magazine.

Discussion Forums

Voiceglobe Forum

The Voiceglobe users and visitors forum for VoIP and Internet Telephony.

The Daily Payload

Exchange ideas on VoIP and Videoconferencing at …

VoIP Troubleshooter.com

Forum for discussion of Voice over IP performance issues and problems.

Voxilla Forum

A user’s guide to the VoIP revolution


  VoIP News
VoIP Events
  VoIP Links

Company Profile | Terms & Conditions | Privacy Policy
Copyright © 2006 Kosmaz Technologies, LLC. All Rights Reserved.