
Dialogic
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SS7 Protocols ISUP Programmer's Manual Issue 15
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6.6.31 Suspend Indication
This message is used by ISUP to indicate that a currently connected call has
been suspended.
Message type
• SUS (Suspend Message)
Mandatory parameters
• Suspend/resume indicators
Optional parameters
• Call reference
6.6.32 Unrecognised Message Indication
Note: This message is only applicable to ITU-T operation.
This primitive is used to transit an unknown message type.
Message type
Unrecognised message
Mandatory parameters
• Message data
Optional parameters
None
6.6.33 User Information Indication
Note: This message is only applicable to ITU-T operation.
This primitive is issued to the application to convey user information received
from the remote party during call set-up (supplementary service 2) or during
the established (speech) phase of a call (supplementary service 3).
Message type
USR (User Information Message)
Mandatory parameters
• User to user information
Optional parameters
• Access transport
• Call reference
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