I have Paolo Bevilacqua's wake-up service programmed as a script in my CME 4.1. All SCCP phones can reach the wake up service and use it, but SIP endpoints just give me a fast busy. Is there a special command that needs to be added to my configuration for TCL scripts to work with SIP phones?
this due to a check in IOS that produces (erroneously in my opinion):
%CALL_CONTROL-6-CALL_LOOP: The incoming call has a global identfier already present in the list of currently handled calls. It is being refused.
The misspelling is not mine either :)
The workaround is to configure "session protocol cisco" under the DP, and "allow-connections sip to h323" under "voice service". Note, I use an _ivs image for this, not sure if it would work without.