[Asterisk-Users] (Yet another) Music on hold problemand another...

[Wiley Siler]

Type 'mpg123' at the Linux CL. (no quotes)
If the version is anything other than 59r, you problem is solved.
Go to the Wiki and search for Music On Hold.
Do the install of version 59r ONLY as described in the docs. 

Cheers,
Wiley






-----Original Message-----
From: asterisk-users-bounces at lists.digium.com
[mailto:asterisk-users-bounces at lists.digium.com] On Behalf Of Neil A.
Hillard
Sent: Wednesday, March 16, 2005 3:23 PM
To: Asterisk Users Mailing List - Non-Commercial Discussion
Subject: Re: [Asterisk-Users] (Yet another) Music on hold problemand
another...

Tom,

In message <ff2e0a1a0503151928760acd58 at mail.gmail.com>, Tom Samplonius
<tom.samplonius at gmail.com> writes
>On Tue, 15 Mar 2005 16:29:53 -0500, C F <shmaltz at gmail.com> wrote:
>> Your problem with MOH has to do with the fact that Asterisk needs a 
>> timing source to play back music on hold. So when there is an audio 
>> stream coming in asterisk can use that incoming stream as a timing 
>> source. If however silence suppression is used, then asterisk has no 
>> timing source therefore MOH doesn't work. You can get a timing source

>> by loading ztdummy. Look up asterisk timing on the wiki The wiki is 
>> located here:
>> www.voip-info.org
>
>  That is actually incorrect.  Zaptel timing is not required or used by
MOH.
>
>  But Asterisk's RTP implementation does use the incoming stream to 
>time the outgoing stream.  So if there are no incoming packets, no 
>outgoing packets are sent, and you don't hear the music.  This means 
>that you can't use VAD/Silence detection on any SIP end-points with 
>Asterisk.  This affects any sounds played by Asterisk, including 
>annoucements, ring-backs, etc., not just MOH.
The strange thing about this is that when I have X-Lite configured not
to send silence and dial into a queue I hear the queue announcements
(every 60 seconds as I've configured) but no MOH, however when I tell it
to transmit silence I hear both the announcements and MOH !!!

Am I right in thinking that when X-Lite is set not to transmit silence,
I shouldn't even hear the announcements ???


                                Neil.

-- 
Neil A. Hillard                E-Mail:   asterisk at dana.org.uk
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