Call Flow

[Anand Sharma]

Hello,

Can one of you explain call flow process via SIP, H.323,MGCP and SCCP, also let me know what are the differences in between these four Viz. SIP, H.323, MGCP and SCCP?

[Ayodeji Okanlawon]

Anand,

SIP

https://supportforums.cisco.com/document/71131/basic-sip-call-flows-troubleshooting-commands

H323

http://docwiki.cisco.com/wiki/Cisco_IOS_Voice_Troubleshooting_and_Monitoring_--_H.323-Related_Standards#Table:_H.225_Call_Setup_Messages

https://supportforums.cisco.com/discussion/12599946/call-flow-between-sipsccp-phone-which-registered-cucm-h323-gateway

mgcp

http://flylib.com/books/en/2.285.1.27/1/

SCCP

https://supportforums.cisco.com/document/138351/unified-communications-call-flow-enterprise-network

[Amit Sharawat]

Similar discussion on support community:

https://supportforums.cisco.com/discussion/12081716/difference-between-h323mgcpsipsccp

I would suggest to refer to the following book for an excellent detailed explanation of each of the above protocols:

http://www.ciscopress.com/store/troubleshooting-cisco-ip-telephony-9781587050756

~Amit

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