<div>Hi Trevor,</div>
<div> </div>
<div>Thanks for your suggestion, it works by adding a Answer() in between!</div>
<div>However it will make everycall in the CDR become "Answered".</div>
<div> </div>
<div>Later on I found that setting progressinband=no in sip.conf finally fixed this problem!</div>
<div> </div>
<div> </div>
<div>Best Regards,</div>
<div>Vincent</div>
<div> </div>
<div> </div>
<div>Message: 12<br>Date: Thu, 01 Mar 2007 06:36:43 -0800<br>From: Trevor Peirce <<a onclick="return top.js.OpenExtLink(window,event,this)" href="mailto:tpeirce@digitalcon.ca">tpeirce@digitalcon.ca</a>><br>Subject: Re: [asterisk-users] Cannot hear ringback music from telco
<br>To: Asterisk Users Mailing List - Non-Commercial Discussion<br> <<a onclick="return top.js.OpenExtLink(window,event,this)" href="mailto:asterisk-users@lists.digium.com">asterisk-users@lists.digium.com</a>>
<br>Message-ID: <<a onclick="return top.js.OpenExtLink(window,event,this)" href="mailto:45E6E4FB.6030609@digitalcon.ca">45E6E4FB.6030609@digitalcon.ca</a>><br>Content-Type: text/plain; charset=ISO-8859-1; format=flowed
<br><br>Vincent Tam wrote:<br>> Hello,<br>><br>> We have an asterisk 1.2.13 box that use a Digium TE205P T1 PRI connect<br>> to the telco, users mainly use snom 320/300 SIP phones.<br>> When dialing to an external phone number with custom ringback music,
<br>> users reported that they could not hear the music but can only hear<br>> the standard ring tone generated by the system.<br>><br>> Is there any kind of settings need to allow the ringback music pass to<br>
> the phone? We only use this simple dialplan to make outgoing call:<br>><br>> exten => _9.,1,Set(CALLERID(all)=$<span></span> {CIDPREFIX}${CALLERIDNUM})<br>> exten => _9.,n,Dial(Zap/g0/${EXTEN:1}||T)<br>
><br>Try adding an Answer between those two, just to see who is producing the<br>ringing. If you do NOT hear ringing but DO hear music, it's an asterisk<br>or snom problem. If you still hear ringing, it's your PRI.
<br><br>Might also want to check in to the phone's manual to see if there's a<br>setting to enable early-audio.<br><br>Trevor</div>