Our customer is in Dubai.They have E1 pri line ,it terminating on cisco voice gateway (2800 series).They are recieving calls properly from US,INDIA,..etc but they are not recieving call from GCC countries .But the customer can call all of these coutries and any where in the world.I double chekked with ISP ,they came and checked that the call is coming properly .They told after going to Gateway only its getting problem.
The calling party says ,they heard tone line one long beep (2 sec) and then short beeps(like busy).ISP says its getting some Fax noises.
(note:all these calling party countries having 0096.. ISD code).We have DID servise subscribed from ISP
The debug of failed incoming call from 96633588888 (Soudi ARABIA number) to 0097172058032 is included
Incoming callare routed to CCM using voip dialpeer.
call manager version 4.2
i am posing the debugs
"debug isdn q931 " and "debug voice dialpeer all"
please throw some light for solve this
thanks for reading this issue