ICX 500 Gateway
Doc.no.A100K12202
Page 119
In AlphaPro -> Exchange & System -> VoIP, change SIP Dial Delay to 20 (2 sec). Default is
zero:
SIP Dial Delay
7.5. Additional Information
7.5.1. UDP Group on incoming calls
Incoming SIP Trunk calls are by default using UDP Groups 1 and 8. This is hardcoded and
cannot be changed.