SIP Products and Services

SIP Service Providers

• See the VoIP Service Providers page

SIP Vendors

• Protocol Stacks
  • AltiLogic
  • Cosystems Technologies Ltd.
  • Data Connection, also known as DCL
  • Hughes Software Systems
  • Indigo Software
  • MediaTrix Telecom, Inc.
  • Mistral Software
  • RADVISION
  • Tsemantics
  • Vovida Networks
• Servers
  • Comisdn
  • Data Connection
  • Indigo Software
  • IPTEL
  • BroadSoft
  • Columbia University: sipd
  • Hotsip
  • Mistral Software
  • SIPquest
  • Ubiquity Software Corporation
• User Agent Clients/Servers
  • Cosystems Technologies Ltd.
  • Columbia University: sipc
  • Data Connection
  • Hotsip
  • Indigo Software
  • Level(3) Communications
  • Lucent Technologies
  • Microappliances
  • Mistral Software
  • Telogy Networks
  • Telsey (hardware, SIP/BaseTX/FXS/BRI/ADSL)
  • Ubiquity Software Corporation
• Phones
  • pingtel
  • MediaTriX Telecom, Inc.
  • ipDialog
  • 3 COM
• Enhanced Services
  • Webley Systems
  • Comverse
• Analyzers
  • AltiLogic
  • Catapult Communications
  • Agilent
• SIP Consultants
  • Howe Digital
  • Mistral Software

Note: An additional list of SIP implementations is also maintained by Henning Schulzrinne on the Columbia University SIP page

This page is maintained by Carl Lindner.