Skinny Client Control Protocol: Difference between revisions

Revision as of 00:02, 8 August 2011

Revision as of 14:39, 7 June 2012

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The '''Skinny Call Control Protocol''' ('''SCCP''', or short ''Skinny'') is a proprietary network terminal control protocol originally developed by [[Selsius Systems]].

The SCCP technology is now owned and defined by [[Cisco Systems, Inc.]]. SCCP is a lightweight protocol for session signaling with Cisco [[CallManagerCisco Unified Communications Manager]] (formerly called CallManager). SCCP is used to communicate between IP devices and Cisco Unified Communications Manager. <ref> [http://www.cisco.com/en/US/docs/voice_ip_comm/cucm/admin/8_5_1/ccmsys/a08procl.pdf Understanding IP Telephony Protocols] </ref><ref>[http://www.cisco.com/en/US/products/sw/voicesw/ps556/products_tech_note09186a0080624977.shtml Call states sent to SCCP endpoints by Cisco CallManager]</ref> Examples of SCCP clients include the Cisco 7900 series of IP phones, [[Cisco IP Communicator]] softphone and the [[802.11b]] wireless [[Cisco Wireless IP Phone 7920|Cisco 7920]], along with [[Cisco Unity]] voicemail server. CallManager acts as a signaling proxy for call events initiated over other common protocols such as [[H.323]], [[Session Initiation Protocol]] (SIP), [[ISDN]] and/or [[MGCP]].

==Protocol components==

A SCCP client uses [[TCP/IP]] to communicate with one or more Call Manager applications in a cluster. It uses the [[Real-time Transport Protocol]] (RTP) over [[User Datagram Protocol|UDP]]-transport for the bearer traffic (real-time audio stream) with other Skinny clients or an H.323 terminal. SCCP is a stimulus-based protocol and is designed as a communications protocol for hardware endpoints and other embedded systems, with significant CPU and memory constraints.

Some Cisco Analog Gateways like VG248 gateway that registers and communicates with [[CallManager|Cisco Unified Communications Manager]] by using SCCP.

==Origin==

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==See also==

*[[Voice over Internet Protocol]]

* [[Media Gateway Control Protocol Architecture]]

==References==