Skinny Client Control Protocol: Difference between revisions

Revision as of 23:26, 16 June 2020

Revision as of 00:08, 17 June 2020

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The '''Skinny Client Control Protocol''' ('''SCCP''') is a proprietary network terminal control protocol originally developed by [[Selsius Systems]], which was acquired by [[Cisco Systems]] in 1998.

SCCP is a lightweight IP-based protocol for session signaling with Cisco Unified Communications Manager, formerly named ''CallManager''.<ref>{{cite web |url=http://www.cisco.com/en/US/docs/voice_ip_comm/cucm/admin/8_5_1/ccmsys/a08procl.pdf|title=Understanding IP Telephony Protocols|publisher=}}</ref><ref>{{cite web|url=http://www.cisco.com/en/US/products/sw/voicesw/ps556/products_tech_note09186a0080624977.shtml|title=Call States Sent to SCCP Endpoints by Cisco CallManager|website=Cisco}}</ref> ExamplesThe ofprotocol SCCParchitecture clientsis includesimilar to the Cisco[[media 7900gateway seriescontrol protocol architecture]], in that is decomposes the function of IPmedia phones,conversion Ciscoin IPtelecommunication Communicatorfor softphonetransmission andvia thean [[802.11bInternet Protocol]] wirelessnetwork Wirelessinto IPa Phonerelatively 7920,low-intelligence alongcustomer-premises withdevice Ciscoand Unitya voicemailcall agent implementation that controls the CPE via signaling servercommands. The call agent product is Cisco CallManager, which also actsperforms 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]] and/orfor the [[Mediapublic Gatewayswitched Controltelephone Protocol|MGCPnetwork]].

==Protocol components==

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==Origin==

Cisco acquired SCCP technology when it acquired Selsius Corporation in 1998.<ref>{{cite web|archiveurl=https://web.archive.org/web/20051109224815/http://newsroom.cisco.com/dlls/fspnisapi6d14.html|title=News @ Cisco: Cisco Systems to Acquire Selsius Systems, Inc. for $145 Million|archivedate=9 November 2005|publisher=|url=http://newsroom.cisco.com/dlls/fspnisapi6d14.html}}</ref> 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 [[802.11b]] wireless Wireless IP Phone 7920, along with Cisco Unity voicemail server.

==Other implementations==

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==See also==

*[[VoiceMedia overGateway InternetControl Protocol]]

==References==