[cisco-voip] Cisco Call Manager RBT Problem with AS5400 MTP Device

[He-Man]

Hello ,

   We have CUCM v7.x  and also use with Cisco As5400 gateway to 
translate calls h323 to sip with G.729 codec.But we have a problem ; 
when we use AS5400 device for MTP, a problem occurs immediately.We are 
facing a ring back tone problem.We have look the ethereal traces ,it 
can't work  fast start so it didn't ring any ring back tone.Is there any 
bug when call manager use with as5400 mtp device ?

Scenario is ; location send traffic to CUCM then call manager send 
packets to As5400 for translating codec then send to softswitch

We want to use  , Cucm as5400 link with H.323 then we want to use As5400 
- SBC link with SIP.How is the situation ? Could you help please. If you 
want to ask any question , you can.

Thank you.