[asterisk-users] Asterisk as UAC: How to put call OnHold

[Sammy Govind]

Hey,
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.

Regards,
Sammy

On Mon, Jan 16, 2012 at 2:57 PM, Johannes Zweng <john999888 at zweng.at> wrote:

> Hi!
>
> 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
> SIP-server).
>
>
> Kind regards,
> John
>
>
>
> 2012/1/16 Sammy Govind <govoiper at gmail.com>
> >
> > Hi,
> >
> > 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.
> >
> > Regards,
> > Sammy
> >
> > On Sat, Jan 14, 2012 at 6:25 AM, Johannes Zweng <john999888 at zweng.at>
> wrote:
> >>
> >> Hi!
> >>
> >> 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.
> >>
> >> Scenario:
> >> ----------
> >> Asterisk registers to another SIP server (provider) as user agent.
> >> An inbound call from this other SIP server comes in and arrives at
> asterisk.
> >> Asterisk performs some actions in the dialplan and should place the
> call on hold after some time, so that the caller only hears the on hold
> music from my provider (not streamed by my Asterisk).
> >>
> >> Technically speaking I want asterisk to send a re-INVITE
> message containing an updated SDP body with the attribute "a=sendonly" or
> "a=inactive" added so that the SIP server of my provider (where Asterisk is
> registered to as user) will recognize that the call should be placed on
> hold.
> >>
> >>
> >> A good example of what I want to achieve is presented in Section 2.1 of
> RFC 5359 (Session Initiation Protocol Service Examples) (
> http://tools.ietf.org/html/rfc5359#section-2.1) where "Bob" would be my
> Asterisk (as UAC), "Alice" is the external caller and "Proxy" is the
> provider's SIP server.
> >>
> >>
> >> Question:
> >> ----------
> >> Is there any way to perform this from the dialplan or by means of the
> manager API? Is there an application like "Hold"?
> >>
> >>
> >> Kind regards and greetings from Austria,
> >> John :-)
> >>
>
> --
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