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@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@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@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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