ASAI and Domain Control
Protocol Error (NAK) Cause
The ECS issues the following cause for a protocol processing error:
■Protocol error (CS0/111)
The Q.932 protocol has been violated or the capability invoked is not consistent with this association. For example, invoking a Third Party Domain Control Request over a Call Control association is inconsistent.
NOTE:
For more information regarding protocol errors and a complete list of reason codes (cause values), see the DEFINITY Enterprise Communications Server CallVisor ASAI Protocol Reference,
Considerations
The adjunct uses previously acquired call_id information about the call to release it from the held state. The call must have been placed on (hard or soft) hold from the station set or via the adjunct.
If the party is already reconnected on the specified call when the ECS receives the request, an ACK is returned.