ASAI and Domain Control

Invalid call type (CS3/43)

The call cannot be held due to the type of call (for example, emergency, wakeup, or service observed).

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, 555-230-221.

Considerations

The adjunct must know the call_id before placing the extension on hold.

If the call is already on hold at the controlled station, when the ECS receives the request, a positive acknowledgement (ACK) is returned. See ‘‘Third Party Reconnect’’ in Chapter 4 for additional “Considerations.”

5-14Issue 7 May 1998

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Lucent Technologies 555-230-220 manual Protocol Error NAK Cause