Call from SIP phone to H323 trunk by CME does not work (no rtp traffic)

[k-baba]

I am trying to make mutual call between two CMEs.

When a SIP phone in one of CME makes call to SCCP phone in another CME,

if the dialpeer between CME is H323, call is established but no voice (no rtp traffic is going).

if the dialpeer between CME is SIP, there is no problem on voice traffic.

And (SCCP phone -> H323 trunk -> SIP phone) call works without problem.

I think CME configuration to relay call from SIP phone to H323 trunk has some issue, but could not have found solution yet.

Is there any missing command or wrong parameter which cause such voice issue ?

Attached are current config on each CME.

Any comment or valid sample config is appreciated.

Best Regards,

[k-baba]

Found that it was caused by bug (https://bst.cloudapps.cisco.com/bugsearch/bug/CSCub00715/)

By adding loopback-dn on CME with SIP phone, the issue was solved.

There is one small drawback that the wildcard "." in number of ephone-dn masks the digit to be "0".