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News and Mailing Lists

 

Note - please adhere to standard mailing list protocol: make sure you check archives before stumbling into proceedings.

If you are aware of any other links we should include then please let us know

Mailing lists

The two major SIP mailing lists are:


Columbia Universities' SIP implementers' mailing list This is a mailing list for the discussion of implementations and to arrange interoperability testing. The Columbia list does deal with some basic questions. Send a mail to sip-implementors-request@cs.columbia.edu. with "subscribe-sip-implementors" in the subject.

SIP forum discussion mailing list - Membership in the SIP Forum is made up of individuals, network engineers, application developers and other Internet professionals who want to contribute to the development of global Internet communications based on IETF and W3C standards. 
SIP Forum Marketing Working Group
SIP Forum Service Provider Working Group
SIP Forum Certification Working Group
SIP Forum SIP Devices Working Group



SIP and General Telecoms news

The SIP Center News page Daily updates of SIP headlines and press releases
ConferencingNews.com - The Conferencing Industry Portal: Audio - Web - Video
IPtelephony.org Voice and Fax over IP news and market research. IP xStream is an ongoing market research study conducted by Gecko Research and Publishing. It's IP Pulse is a weekly publication tracking the VoIP industry.
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Mailing lists

The two major SIP mailing lists are:


Columbia Universities' SIP implementers' mailing list This is a mailing list for the discussion of implementations and to arrange interoperability testing. The Columbia list does deal with some basic questions. Send a mail to sip-implementors-request@cs.columbia.edu. with "subscribe-sip-implementors" in the subject.

SIP forum discussion mailing list - Membership in the SIP Forum is made up of individuals, network engineers, application developers and other Internet professionals who want to contribute to the development of global Internet communications based on IETF and W3C standards. 
SIP Forum Marketing Working Group
SIP Forum Service Provider Working Group
SIP Forum Certification Working Group
SIP Forum SIP Devices Working Group



SIP and General Telecoms news

The SIP Center News page Daily updates of SIP headlines and press releases
ConferencingNews.com - The Conferencing Industry Portal: Audio - Web - Video
IPtelephony.org Voice and Fax over IP news and market research. IP xStream is an ongoing market research study conducted by Gecko Research and Publishing. It's IP Pulse is a weekly publication tracking the VoIP industry.
Number Resolution

Number resolution - ENUM and TRIP

 

The system of telephone numbers is well defined and understood. There are billions of telephones, and billions of telephone numbers, each one no larger than 15 digits and globally unique. Alongside this system many people will be using SIP phones and SIP clients on their PCs and these will have SIP URLs associated with them. Fortunately, SIP can carry phone numbers using the new telephone URL (e.g. tel:208534845).

ENUM

A problem arises when one needs to associate a traditional phone with a resource on the Internet (this would be a requirement of any converged presence-type service). The IETF's ENUM (Telephone Number Resolution) working group is devising a scheme to enter telephone numbers onto the Internet DNS so that any application, including SIP, can discover resources available to a globally unique phone number. A SIP phone or proxy server would do the number domain translation and through classic DNS resolution discover a DNS resource that would give a SIP address at which the dialled number could be reached.

Further resources:


TRIP

Where a telephone number does not have a SIP resource associated with it, the IP network routes a call to a telephone gateway, which connects to the PSTN. In an interconnect environment with many peering relationships between service providers, resources in the IP network need to be able to discover which telephone numbers are associated with which gateways.

The IPTEL working group is developing TRIP (Telephony Routing overIP), a policy driven inter-administrative domain protocol for advertising the reachability of telephony destinations between location servers, and for advertising attributes of the routes to those destinations. TRIP is designed to allow service providers to exchange routing information in order to avoid the over-provisioning or duplication of gateways. It uses established Internet protocols such as BGP, OSPF and SCSP.

For further information see the Whitepaper - Provisioning ENUM Services (NetNumber ©copyright December 2000)

  • ENUM Products and Services
  • ENUM on its way to maturity By Adrian Georgescu AG Projects May 7th, 2004.
  • ENUM lookup tool


    • TRIP

    Where a telephone number does not have a SIP resource associated with it, the IP network routes a call to a telephone gateway, which connects to the PSTN. In an interconnect environment with many peering relationships between service providers, resources in the IP network need to be able to discover which telephone numbers are associated with which gateways.

    The IPTEL working group is developing TRIP (Telephony Routing overIP), a policy driven inter-administrative domain protocol for advertising the reachability of telephony destinations between location servers, and for advertising attributes of the routes to those destinations. TRIP is designed to allow service providers to exchange routing information in order to avoid the over-provisioning or duplication of gateways. It uses established Internet protocols such as BGP, OSPF and SCSP.

    For further information see the OSS/BSS

     

    OSS/BSS Operations and Billing Support Systems 
     
     
    Brevient Communications LLC - Hosted OSS/BSS applications for VoIP and SIP service providers developed by a former provider. Reporting; contracts; ticketing; commissions; automated billing and more.

    Highdeal - Highdeal provides the world's leading Pricing & Rating solution. When coupled with a SIP server; Highdeal enables SPs to find new revenue streams while leveraging their existing billing assets.

    IntraISP - IntraISP 6.0 is now fully integrated with the Versatel IQ4000 SIP enabled media gateways. With IntraISP your organization can provision and bill accounts through browser based tools. See our demo!