Skinny Client Control Protocol
The Skinny Client Control Protocol (SCCP) is a proprietary network terminal control protocol originally developed by
SCCP is a lightweight IP-based protocol for session signaling with Cisco Unified Communications Manager, formerly named CallManager.[1][2] The protocol architecture is similar to the media gateway control protocol architecture, in that is decomposes the function of media conversion in telecommunication for transmission via an Internet Protocol network into a relatively low-intelligence customer-premises device and a call agent implementation that controls the CPE via signaling commands. The call agent product is Cisco CallManager, which also performs as a signaling proxy for call events initiated over other common protocols such as H.323, and Session Initiation Protocol (SIP) for voice over IP, or ISDN for the public switched telephone network.
Protocol components
An SCCP client uses
Some Cisco analog media gateways, such as the VG248 gateway, register and communicate with Cisco Unified Communications Manager using SCCP.
Origin
Cisco acquired SCCP technology when it acquired Selsius Corporation in 1998.[3] For this reason the protocol is also referred to in Cisco documentation as the Selsius Skinny Station Protocol. Another remnant of the origin of the Cisco IP phones is the default device name format for registered Cisco phones with CallManager. It is SEP, as in Selsius Ethernet Phone, followed by the MAC address. Cisco also has marketed a Skinny-based softphone called Cisco IP Communicator.
Client examples
Examples of SCCP client devices include the Cisco 7900 series of IP phones, Cisco IP Communicator softphone, and the
Other implementations
Other companies, such as
See also
References
- ^ "Understanding IP Telephony Protocols" (PDF). Archived (PDF) from the original on 2015-07-11.
- ^ "Call States Sent to SCCP Endpoints by Cisco CallManager". Cisco.
- ^ "News @ Cisco: Cisco Systems to Acquire Selsius Systems, Inc. for $145 Million". Archived from the original on 9 November 2005.
- ^ "mod_skinny - FreeSWITCH - Confluence". wiki.freeswitch.org.
- ^ http://www.ipblue.com/ IPBlue
- ^ http://www.twinlightssoftware.com/ Twinlights Software