[Freeswitch-users] Ringtone on multiple destinations

[Michael Collins]

As luck would have it, this exact issue is mentioned in chapter 1 of the
FreeSWITCH Cookbook in the recipe entitled, "Advanced multiple endpoint
routing with enterprise originate." While you click
here<http://link.packtpub.com/nuIOlX>and pre-order your copy ;) I will
give you the synopsis:

You MUST ignore early media when doing an enterprise originate. Therefore,
to get ringback tone you'll need to set the ringback channel variable on
the A leg. Your extension will end up looking something like this:

<action application="set" data="ringback=${us-ring}"/>
<action application="bridge"
data="<ignore_early_media=true>[leg_timeout=0][origination_caller_id_number=30]user/35@
${domain_name}:_:[leg_timeout=0][origination_caller_id_number=30]user/31@
${domain_name}"/>

Note: when doing any kind of multiple endpoint originate, whether using the
enterprise originate or just the comma-separated list of endpoints, it is
99.99% of the time necessary to ignore early media. Why? The answer to that
question is eloquently stated in both chapters 5 and 8 of the first
FreeSWITCH book. Check it
out<http://www.packtpub.com/freeswitch-1-0-6-build-robust-high-performance-telephony-systems/book>.
:)

-MC

On Wed, Feb 15, 2012 at 9:37 AM, Christian Benke <benkokakao at gmail.com>wrote:

> Hello!
>
> I have a question about ringback-tone when calling multiple
> destinations. When i call a single directory-user, i get a proper
> ringback-tone - but when i add a second user to the bridge-command,
> there's no more ringback-tone.
>
> This is not about early-media - the phones only send 180 Ringing and
> the ringtone is provided by FS.
>
> Shouldn't FS send a ringback-tone as soon as the first phone answers
> with 180? Or is this behaviour just as intended?
>
> I've attached sip-traces of both situations plus the respective extension.
>
> Best regards
> Christian
>
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