Maybe I am missing something or am a little blind at the moment, but I
didn’t find out how asterisk can place a call on hold when acting as user
agent client to another SIP server.
yes, please see MusicOnHold() Application. You can call this app in your
dialplan. This however will use the default music class and the
corresponding music files placed in the asterisk server. If you don’t want
to stream music from Asterisk server side, try creating a new MusiconHold
Class without any proper directory. That way Asterisk would only complain
that there is no file to be streamed.
Many thanks for this hint. I will try this! 🙂
A quick question: when doing this with “MusicOnHold()”: will the SIP
server be aware that the call is placed onHold (i.e. will Asterisk
send the mentioned re-INVITE)?
The point is – if possible – we want the caller to hear the OnHold
Music from the SIP server. If not we would have to copy the MoH to our
Asterisk (and change it on our side too, when it changes at the
I have never worried about looking at the SIP re-invites or anything when
we engage MoH() application in asterisk. You can do a quick test on your
test machine for this.
Ok, I will try this and let you know!
Thanks for your hint, but unfortunately this does not result in the
behaviour I am looking for. When I start “MusicOnHold” Asterisk
streams the OnHold music itself, even if I specifiy an invalid MoH
class or one without files.
What I was looking for is a way to send a re-INVITE to its upstream
SIP provider to inform it that the call should be placed on hold,
exactly as described in the example in Section 2.1 of RFC 5359
Does anyone know how to do this from Asterisk dialplan? Any ideas are
Greetings from a snowy Vienna,
2012/1/16 Johannes Zweng :