[Freeswitch-users] how do I detect a call has rung once?

[Neil Patel]

What's the channel variable I monitor for? Is it good practice to poll for
it, or is there another option? Also, does 180 and/or 183 come back for
non-sip calls (I'm dialing out over PRI/openzap).

Thanks,
Neil

On Mon, May 10, 2010 at 2:49 PM, Anthony Minessale <
anthony.minessale at gmail.com> wrote:

> Unfortunately it's not an assumption.
>
> You have to consider that things are sane.  If they are.  When you place a
> call and you get either a 180 or 183 it denotes that ringing has been
> indicated by the far end.  If you want to get into the gory details they map
> over to a very specific set of ISDN signals that indicate that the phone has
> rung or not both with and without media.  In either case both with and
> without audio if FreeSWITCH gets the early media indication it means someone
> has told us there is ringing.
>
> If things are not sane, you cannot do anything but find another route.
>
>
>
>
>
> On Mon, May 10, 2010 at 4:34 PM, Sergey Okhapkin <sos at sokhapkin.dyndns.org
> > wrote:
>
>> Unfortunately this is a wrong assumption. You can get dead air in early
>> media
>> and SIP error after that.
>>
>> On Monday 10 May 2010, Anthony Minessale wrote:
>> > as soon as you get the first early media signal, that is how you know.
>> >
>> > On Mon, May 10, 2010 at 4:03 PM, Neil Patel <neilp at cs.stanford.edu>
>> wrote:
>> > > I want to initiate a missed call from FS (via lua script). Is there
>> > > anything in the early media I can check to see that the call has rung
>> at
>> > > the endpoint at least once?
>> > >
>> > > Thanks,
>> > > Neil
>> > >
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>>
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>
>
>
> --
> Anthony Minessale II
>
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