Welltech Dialogic SS7 Protocols ISUP - Manual (Page 39)

Dialogic ® SS7 Protocols ISUP Programmer's Manual Issue 15
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6.5.17 Loop Prevention Request
Note: This message is only applicable to ITU-T operation
This primitive is used as part of the ECT supplementary service.
Message type
LOP (Loop Prevention Message)
Mandatory parameters
None
Optional parameters
• Message compatibility information
• Parameter compatibility information
• Call transfer reference
• Loop prevention indicators
6.5.18 Network Resource Management Request
Note: This message is only applicable to ITU-T operation
This primitive is used by the application to modify network resources
associated with a certain call. This message is sent along any established
path in any direction in any phase of a call.
Message type
NRM (Network Resource Management Message)
Mandatory parameters
None
Optional parameters
• Echo control information
• Message compatibility information
• Parameter compatibility information
• Transmission medium requirement