atcomsystems.ca/forum Forums TDM Business Telephone Systems Avaya - Lucent Telephones & Systems VM Pro request a call back / call queue

Not possible. If you were to upgrade to current, you could look at Xima Chronicall (or the OEM version ACR).

Xima has the ability to do callback in queue very nicely.

Would be a pretty big lift as you would have to look at hardware, move licenses etc...