Welltech Dialogic SS7 Protocols ISUP - Manual (Page 61)

Dialogic ® SS7 Protocols ISUP Programmer's Manual Issue 15
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6.6.7 Continuity Indication
This primitive is used by ISUP to convey information about whether or not a
continuity test has succeeded.
Message type
COT (Continuity Message)
Mandatory parameters
• Continuity indicators
Optional parameters
None
6.6.8 End-to-End Message Indication
This primitive is used by ISUP for end-to-end signaling.
Message type
PAM (Pass Along Message)
Mandatory parameters
• Message data
Optional parameters
None
6.6.9 Exit Indication
Note: This message is only applicable to ANSI operation
An Exit Message may be received in the backwards direction from a gateway
exchange before Address Complete to indicate that call setup information has
successfully been passed to an adjacent network.
Message type
CPG (Call Progress Message)
Mandatory parameters
• Event information
Must be coded as value 0x7d (defined as ‘spare’ by ANSI T1.113.3), to
indicate Exit.
Optional parameters
• Outgoing trunk group number