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ASAI and Domain Control
5-36 Issue 7 May 1998
Denial (NAK) Causes
■ Invalid association (CS0/81) — The association does not exist.
■ Invalid number (CS0/28) — The specified call_id is within the allowable
range but currently not active in the ECS.
■ Mandatory IE missing (CS0/96) — A required parameter is missing in the
request.
■ Invalid IE contents (CS0/100) — The call_id is outside the allowable range
for the DEFINITY ECS or the call option IE value is other than ‘Alert Order’
or ‘visibility’.
■ No user responding (CS0/18) — The station to be added does not go
off-hook within 5 seconds or cannot be forced off-hook.
■ Message not compatible with call state (CS0/98) — A Single-Step
Conference is received with full visibility option when the call is in vector
processing. This also happens if the call to which a party is to be added, is
not in the proper state (for example, parked), or receiving the dial tone.
Additionally, Single-Step Conference cannot be invoked, when the call is in
the process of being classified by the ECS.
■ User busy (CS0/17) — The party to be added is busy on another call, has
dial tone, or is in the process of dialing a call.
■ Reorder/Denial (CS3/42). Maximum number of parties allowed on a call
has been reached. Also sent, if a request is made to Single-Step
Conference to add a device onto a call and the device is already on the
call.
■ COR check fail (CS3/43) — The COR checks for the call and the added
party fail.
■ Bearer capability not available (CS0/58) — The call has conference
restrictions due to data-related features, for example, data restriction, data
privacy, and manual exclusion.
Protocol Error (NAK)Causes
The ECS issues the following cause for generating 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 the Third Party
Make Call capability on a Domain Control association.
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.