Call established but no voice on both ways

[amine..dahel]

Hi everybody,

I'm working on CUCM 9.1.2,  having an issue which is as follows:

I'm trying to make call to an external number  using a SIP trunk to get to the PSTN, the call is established but no voice is heard on both ways.

Any tips, guys?

thanks in advance,

[Ayodeji Okanlawon · Accepted solution]

This looks like ip routing issue. You can use the "show sip-ua calls" to see where your media is sent to. You then need to check that the ips listed in there have ip connectivity to each other.

In the show sip-ua calls, you will have two entries for a single call. Once is the UAC ( this is the leg of the CUBE that sends the invite out) and the UAS, the leg of the cube that received the INVITE.

[amine..dahel]

Hi Ayodeji,

thank you for your answer.