Tag Archives: IETF

SIPfoundry Deploys Three New Open Source SIP-Compliant Technologies

January 10, 2005


Three new open source software solutions fully compliant with the IETF’s SIP standards will accelerate the adoption of the SIP protocol.

SIPfoundry, Inc has announced sipX – the SIP PBX for Linux, reSIProcate – the Reference SIP Stack, and the SIP Interoperability Project, three projects to serve as industry catalysts for the widespread adoption of SIP as the definitive IP communications infrastructure.

sipX, the SIP PBX for Linux, is a 100 percent SIP, 100 percent open source, PBX, voicemail, auto-attendant and SIP proxy, fully interoperable with SIP-compliant media gateways and phones. It is immediately downloadable and is fully manageable via a web-browser interface.

reSIProcate is a SIP stack, unencumbered by any one company’s commercial agenda, that provides the a fully standards compliant implementation of all key IETF RFCs relating to SIP, including enhanced security features, NAT Traversal, Instant Messaging, and Presence.

The SIP Forum Test Framework (SFTF), designed and written by the SIP Forum and hosted by SIPfoundry as the SFTF SIP Interoperability Project, is a growing body of open source test suites that help SIP product users and vendors ensure standards conformance and interoperability – helping to eliminate SIP islands.

SIPfoundry is dedicated to creating software solutions that implement IETF SIP-related specifications, giving end-users and developers one-stop access to a wide variety of SIP application software, tools and resources, all available under open source licenses that allow easy commercial use.

Global IP Sound iLBC Codec for VoIP Adopted by Infineon

November 23, 2004


Global IP Sound is delivering its iLBC (internet Low Bitrate Codec) code and algorithm to Infineon Technologies for incorpoation into is MTAs (multimedia terminal adapters) and media gateways, in response to new IETF and CableLabs mandates.

Global IP Sound has created an iLBC to meet a recent IETF standard, also adopted by CableLabs, for a speech coding system with a controlled response to packet loss. This standard is now a required component for all voice-over-cable telephony, and produces a reduced quality degradation from packet loss, and so crisper and more natural sound.

Infineon has licensed the Global IP Sound iLBC codec and will incorporate it in all its fixed point implementations. It is the first chip company to implement what is now the worldwide standard for narrowband speech communication, and believes this will give its customers a big lead in time to market.

The iLBC was recently selected to be the standard for narrowband speech implementations by the IETF (Internet Engineering Task Force). The iLBC was also endorsed by CableLabs, a nonprofit research and development consortium dealing with cable access technologies, as mandatory for all VoIP applications in cable modems.