> As per AES TSAPI Error list it's INVALID_CSTA_DEVICE_IDENTIFIER. What does it mean?
According to the TSAPI Programmers Reference document:
INVALID_CSTA_DEVICE_IDENTIFIER (12) – An invalid device identifier or extension is specified in callingDevice.
> Our application has AES version 8.1 JTAPI library but at site AES version is 7.x. Can this be a reason?
I very much doubt that it is the cause.
> Can this be due to any change in Station configuration at Avaya CM end.
Possibly, but I have no way of knowing. I would suggest that you run a "list trace station XXX" at the Communication Manager SAT terminal and make the call. This may give you a clue as to the cause.
> What error we will receive if application is unable to dial a number due to Class of Restrictions?
From a brief test in my lab, I don't see that behavior when the call is blocked by COR.
As this problem is occurring in a production environment, if the list trace station doesn't help, I suggest you ask your customer to open a Service Request with Avaya Services or their Business Partner.
Martin
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