Can't hear any voice

i have already make a call but unfortunately, i just hear that the other end rings but i cant hear his voice and he cant hear me as well…

what will i do?

any help??

This sounds like NAT problem. I assume that you are using SIP phones. Check your SIP configuration. Ensure that your SIP accounts have nat=yes setting. Anyway I might be wrong… Check if an echo test is working for both of you. To make an echo test create this extension:exten => 12345,1,Answer() exten => 12345,2,Echo() exten => 12345,3,HangUp()Dial 12345 from your phone and check if you have echo. Do the same with the other client.

Regards, Arcopix