Chan_SCCP-b is a replacement Channel Driver for chan_skinny in the Asterisk Channel Driver Library. It delivers better performance, scalability, interoperability and functionality than either chan_skinny or chan_sip on a SCCP/Skinny capable phone.

The Skinny Client Control Protocol (SCCP/Skinny) is a proprietary network terminal control protocol originally developed by Selsius Corporation (Taken over by Cisco). The term "Skinny" reflects that SCCP is a simple and uncomplicated ("lightweight") protocol requiring relatively little computer processing.

At this moment we are working hard to make Chan_SCCP-b V4.1 ready for release. Our latest stable release has been V4.0.1, containing loads of extended features when compared to V2.0 / V3.1 or chan_skinny. It can be used with asterisk versions 1.6.2 up till 1.10. If you need to run chan-sccp-b with asterisk 1.6.1 and below, you can use the dependable V3.1.2 version. Support for the newer asterisk versions 11 and 12(trunk) is only available in chan-sccp-b V4.1.

Chan_SCCP-b V3.1 has support for:

• Shared Lines
• Dialplan Functions
• Device State change via Feature Buttons
• Dynamic Speeddials (with and without callerid)
• Dynamic Module reload
• Realtime Database
• Hotline (PLAR)
• Dundi RegContext
• Directed Failover of Devices
• Video Calls (improved)

Chan_SCCP-b V4.0 has support for:

• All of the above
• Multiple asterisk versions
• Improved AMI / CLI functionality
• Improved sccp.conf parser
• Improved codec matching
• Improved RTP Handling

Chan_SCCP-b V4.1 has undergone major changes, for example:

• Redesigned asterisk version independence layer (pbx_impl)
• Redesigned sccp.conf parser
• Redesigned hint handling
• Native Conferencing with XML ConfList Support
• Atomic Reference Counting for memory management
• Extended / Corrected CLI/AMI Functions
• Improved codec managament
• Improved RTP Handling

We are still looking for Developers, Documentation Maintainers and People to help us out with User Support. So if you are interrested in joining a fun project, signup now !