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7.2.3   SIP-ISUP protocol interworking
7.2.3.1   Incoming call interworking from SIP to ISUP at I-MGCF
7.2.3.1.1   Sending of IAM
7.2.3.1.2   Coding of the IAM   PDF-p. 33
7.2.3.1.2A   Coding of the IAM when Number Portability is supported [R8]
7.2.3.1.2B   Coding of the IAM for Carrier Routeing [R8]
7.2.3.1.3   Sending of COT
7.2.3.1.3A   Sending of SAM [R8]   PDF-p. 53
7.2.3.1.4   Sending of 180 ringing   PDF-p. 54
7.2.3.1.4A   Sending of 183 Session Progress for early media scenarios [R7]
7.2.3.1.4B   Sending of 181Call is being forwarded [R7]   PDF-p. 60
7.2.3.1.4C   Sending of 183 Session Progress for overlap signalling using the in-dialog method [R8]   PDF-p. 61
7.2.3.1.4D   Sending of 183 Session Progress to carry ISUP Cause [R9]
7.2.3.1.4E   Sending of 183 Session Progress for ICS call [R12]
7.2.3.1.5   Sending of the 200 OK (INVITE)   PDF-p. 62
7.2.3.1.6   Sending of the Release message (REL)   PDF-p. 64      Up
7.2.3.1.7   Coding of the REL
7.2.3.1.8   Receipt of the Release Message   PDF-p. 65
7.2.3.1.9   Receipt of RSC, GRS or CGB (H/W oriented)   PDF-p. 70
7.2.3.1.9a   Receipt of REFER [R7]
7.2.3.1.10   Autonomous Release at I-MGCF   PDF-p. 71
7.2.3.1.11   Internal through connection of the bearer path
7.2.3.2   Outgoing Call Interworking from ISUP to SIP at O-MGCF
7.2.3.2.1   Sending of INVITE
7.2.3.2.1a   Sending of INVITE without determining the end of address signalling [R7]   PDF-p. 74
7.2.3.2.2   Coding of the INVITE   PDF-p. 76
7.2.3.2.2A   Coding of the INVITE when Number Portability is supported [R8]
7.2.3.2.2B   Coding of the INVITE for Carrier Routeing [R8]
7.2.3.2.2C   Coding of INVITE with instance-id in form of IMEI URN [R9]
7.2.3.2.3   Receipt of CONTINUITY
7.2.3.2.4   Sending of ACM and awaiting answer indication   PDF-p. 93
7.2.3.2.5   Coding of the ACM   PDF-p. 95
7.2.3.2.6   Sending of the Call Progress message (CPG)      Up
7.2.3.2.7   Coding of the CPG
7.2.3.2.7a   Receipt of 200 OK(INVITE)   PDF-p. 102      Up
7.2.3.2.7b   Internal through connection of the bearer path [R7]
7.2.3.2.8   Sending of the Answer Message (ANM)
7.2.3.2.9   Coding of the ANM
7.2.3.2.10   Sending of the Connect message (CON)   PDF-p. 104
7.2.3.2.11   Coding of the CON
7.2.3.2.11A   Receipt of a reINVITE request [R8]
7.2.3.2.12   Receipt of Status Codes 4xx, 5xx or 6xx
7.2.3.2.13   Receipt of a BYE
7.2.3.2.14   Receipt of the Release Message
7.2.3.2.15   Receipt of RSC, GRS or CGB (H/W oriented)
7.2.3.2.16   Autonomous Release at O-MGCF   PDF-p. 108
7.2.3.2.17   Special handling of 580 precondition failure received in response to either an INVITE or UPDATE      Up
7.2.3.2.18   Sending of CANCEL   PDF-p. 109
7.2.3.2.19   Receipt of SIP redirect (3xx) response
7.2.3.2.20   Sending of INFO for overlap signalling using the in-dialog method [R8]
7.2.3.3   Timers   PDF-p. 110

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