Skinny Client Control Protocol: Difference between revisions

Revision as of 18:57, 25 January 2007

Revision as of 09:50, 6 February 2007

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'''SCCP''' is a proprietary terminal control protocol originally developed by Selsius Corporation. It is now owned and defined by [[Cisco Systems, Inc.]] as a messaging set between a skinny client and the Cisco [[CallManager]]. Examples of skinny clients include the Cisco 7900 series of IP phone such as the [[Cisco 7960]], [[Cisco 7940]] and the [[802.11b]] wireless [[Cisco 7920]], along with [[Cisco Unity]] voicemail server. Skinny is a lightweight protocol which allows for efficient communication with Cisco Call Manager. Call Manager acts as a signalling proxy for call events initiated over other common protocols such as [[H.323]], [[Session Initiation Protocol|SIP]], [[ISDN]] and/or [[MGCP]].

A skinny client uses [[TCP/IP]] to and from one or more Call Managers in a cluster. [[Real-time Transport Protocol|RTP]]/[[User Datagram Protocol|UDP]]/[[Internet Protocol]]|IP] is used to and from a similar skinny client or H.323 terminal for the bearer traffic (real-time audio stream). 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.