A protocol is required to communicate reachability and resource information between LS & GWs. Telephony Gateway Registration Protocol (TGREP) is the IETF proposed standard used by gateways for this.
TGREP is considered supplementary to TRIP and share a a lot of procedures and message formats. Gateway in TGREP is the speaker and is therefore typically in a 'send' mode. LSs in TGREP act as receivers and are typically only in 'receive' mode.
TGREP is considered supplementary to TRIP and share a a lot of procedures and message formats. Gateway in TGREP is the speaker and is therefore typically in a 'send' mode. LSs in TGREP act as receivers and are typically only in 'receive' mode.
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