[cisco-voip] No ring back Tone For Switched off Mobile

[Asim Mekki Basheer]

Hi
The issue is, when call out to a Switched off mobile phone, the IP Phone can't hear the correct ringback tone either Busy Tone nor Service Provider's Ringtone, it hears normal Ringback tone same as when the mobile phone switched on insteadThe call flow:IP Phone -- CUCM -- SIP Trunk--  CUBE --SIP Trunk -- Service Provider .
(CUCM 7.5,  VGW (2921)
Regards 		 	   		  
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