I have a VG224 whit SCCP in a CUCM 6.1 cluster the local calls and national long distance work fine, but when i call international long distance call when i finish to dial the number affter 5 secodns the VG244 send me a busy tone for 5-10 second before send me a FAC tone.
affter dial the FAC code the call works fine.
Why VG224 send me a Busy tone??
the internation long distance it's 9[carrier]0! why i don't know all country code an city code.
[make a call] - [silence for 3 at 5 seconds] - [busy tone for 5 at 10 second] - [FAC tone] - [ dial fac code] - [Ringing tone] - [anwser call]