Hello,<br><br>I have got two zap channels configured in our asterisk server, one of them is connected to the PSTN directly and the other one is connected to a gsm track, only for mobile calls.<br>Both of them are basic lines.
<br>I just connect an iax softphone (idefisk) to the asterisk PBX. If I make a mobile call using the zap channel connected to a gsm track, the mobile I phoned does not hear me nothing.<br>But If the call is made using the zap channel directly connected to the PSTN, both end points hear perfectly.
<br><br>Why this is happening? How could I solve that?<br><br>Any clue will we wellcomed.<br><br>Thanks in advance.<br><br>VoipCrazy<br><br><br><br><br><br><br><br>