asterisk users - Mar 2007 - Cannot hear ringback music from telco

Hello,

We have an asterisk 1.2.13 box that use a Digium TE205P T1 PRI connect to
the telco, users mainly use snom 320/300 SIP phones.
When dialing to an external phone number with custom ringback music, users
reported that they could not hear the music but can only hear the standard
ring tone generated by the system.

Is there any kind of settings need to allow the ringback music pass to the
phone? We only use this simple dialplan to make outgoing call:

exten => _9.,1,Set(CALLERID(all)=${CIDPREFIX}${CALLERIDNUM})
exten => _9.,n,Dial(Zap/g0/${EXTEN:1}||T)

 * CIDPREFIX is the 5 digit prefix of the company's PRI line, CALLERIDNUM
are 3 digit internal numbers

Thanks!
Vincent
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Vincent Tam wrote:
> Hello,
> We have an asterisk 1.2.13 box that use a Digium TE205P T1 PRI connect 
> to the telco, users mainly use snom 320/300 SIP phones.
> When dialing to an external phone number with custom ringback music, 
> users reported that they could not hear the music but can only hear 
> the standard ring tone generated by the system.
> Is there any kind of settings need to allow the ringback music pass to 
> the phone? We only use this simple dialplan to make outgoing call:
> exten => _9.,1,Set(CALLERID(all)=${CIDPREFIX}${CALLERIDNUM})
> exten => _9.,n,Dial(Zap/g0/${EXTEN:1}||T)
> * CIDPREFIX is the 5 digit prefix of the company's PRI line, 
> CALLERIDNUM are 3 digit internal numbers
> Thanks!
> Vincent
Use the m option in your dial statement.

*m*: Provide Music on Hold to the calling party until the called channel 
answers. This is mutually exclusive with option 'r', obviously. Use 
m(class) to specify a class for the music on hold.

Thanks,
Steve Totaro

Vincent Tam wrote:
> Hello,
>  
> We have an asterisk 1.2.13 box that use a Digium TE205P T1 PRI connect 
> to the telco, users mainly use snom 320/300 SIP phones.
> When dialing to an external phone number with custom ringback music, 
> users reported that they could not hear the music but can only hear 
> the standard ring tone generated by the system.
>  
> Is there any kind of settings need to allow the ringback music pass to 
> the phone? We only use this simple dialplan to make outgoing call:
>  
> exten => _9.,1,Set(CALLERID(all)=${CIDPREFIX}${CALLERIDNUM})
> exten => _9.,n,Dial(Zap/g0/${EXTEN:1}||T)
>  
Try adding an Answer between those two, just to see who is producing the 
ringing.  If you do NOT hear ringing but DO hear music, it's an asterisk 
or snom problem.  If you still hear ringing, it's your PRI.

Might also want to check in to the phone's manual to see if there's a 
setting to enable early-audio.

Trevor

Hi Trevor,

Thanks for your suggestion, it works by adding a Answer() in between!
However it will make everycall in the CDR become "Answered".

Later on I found that setting progressinband=no in sip.conf finally fixed
this problem!


Best Regards,
Vincent


Message: 12
Date: Thu, 01 Mar 2007 06:36:43 -0800
From: Trevor Peirce <tpeirce@digitalcon.ca>
Subject: Re: [asterisk-users] Cannot hear ringback music from telco
To: Asterisk Users Mailing List - Non-Commercial Discussion
       <asterisk-users@lists.digium.com>
Message-ID: <45E6E4FB.6030609@digitalcon.ca>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed

Vincent Tam wrote:
> Hello,
>
> We have an asterisk 1.2.13 box that use a Digium TE205P T1 PRI connect
> to the telco, users mainly use snom 320/300 SIP phones.
> When dialing to an external phone number with custom ringback music,
> users reported that they could not hear the music but can only hear
> the standard ring tone generated by the system.
>
> Is there any kind of settings need to allow the ringback music pass to
> the phone? We only use this simple dialplan to make outgoing call:
>
> exten => _9.,1,Set(CALLERID(all)=$ {CIDPREFIX}${CALLERIDNUM})
> exten => _9.,n,Dial(Zap/g0/${EXTEN:1}||T)
>
Try adding an Answer between those two, just to see who is producing the
ringing.  If you do NOT hear ringing but DO hear music, it's an asterisk
or snom problem.  If you still hear ringing, it's your PRI.

Might also want to check in to the phone's manual to see if there's a
setting to enable early-audio.

Trevor
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Vincent Tam wrote:
> Hi Trevor,
> Thanks for your suggestion, it works by adding a Answer() in between!
> However it will make everycall in the CDR become "Answered".
> Later on I found that setting progressinband=no in sip.conf finally 
> fixed this problem!
> Best Regards,
> Vincent
So does that mean that the call is not answered yet as far as the telco 
goes?  If that is the case, how long can a call stay in this state?

I ask for inbound 800 billing.

Thanks
Steve