I got a Problem only with 9971 Phones all other Phones are working fine.
There are two Callflow where we got no ringback tone.
1) 9971 - CUCM - ICT - CUCM - MGCP - Gateway - Mobilephone
2) 9971 - CUCM - ICT - CUCM - MGCP - Gateway - PSTN- Phone CFW to Mobilephone
On followed Callflow we hear a ringback:
9971 - CUCM - ICT - CUCM - MGCP - Gateway - PSTN- Phone
Has anybody an Idea?
