Assume that there is a POT line connected to Obi110, but no caller ID feature. I want the caller to call and press a key like * to trigger the auto attendant. If there is no input for 2 second, Obi will ring the phone connected to it. Is it possible to setup the following to achieve the goal?
1. Route all incoming calls to a customized AA2 (slient or sound of ring tone) in the inboundcallroute.
2. After AA2 picked up the call, wait for 2 second. If caller press a key like *, route the call to AA3. Otherwise, ring the phone connected to Obi.
(AA3 will be something similar to the default AA that will allow caller to make new call.)