No ringing back tone

[Alexander Afanasenkov]

Hello,

I'm having a problem in my topology;

IP Phone -> CUCM -> CUBE -> SIP Trunk -> Rostelecom

CUCM 11.0.1
CUBE (CISCO 2901) Version 15.4(3)M4

I am getting no ring back tone when I make calls between ip phones or pstn.

I need your experiences. Can anyone help me to solve it?
Thanks in Advance.

[Alexander Afanasenkov]

Hi Suresh,

 Did not help

[Alexander Afanasenkov]

Attach cube cfg

[Suresh Subramanian]

To confirm whether or not the ITSP sending the ringback/announcement, we can do packet capture on the interface connected to ITSP & CUCM and decode it with wireshark. URL below on how to capture the packet on those interfaces. This is only to capture SIP traffic, not media.

https://supportforums.cisco.com/document/11935676/ip-traffic-export-packet-capture.

The configuration we have, to capture all the traffic including Media & Signalling:

!
ip traffic-export profile PCAP mode capture
  bidirectional
  incoming access-list 123
  outgoing access-list 123

!
interface GigabitEthernet0/0
 description ********Gateway to CUCM Interface*******
 ip address 10.10.10.19 255.255.255.128
 ip traffic-export apply PCAP size 2000000
 duplex full
 speed 1000
 no mop enabled
!

interface GigabitEthernet0/1
 description ******Gateway To ITSP Interface******
 ip address 10.10.10.20 255.255.255.248
 ip access-group Provider in
 ip traffic-export apply PCAP size 2000000
 duplex full
 speed auto
!