[Freeswitch-users] Early media: Sending 180 instead of 183?

Peter Olsson peter.olsson at visionutveckling.se
Mon Aug 6 15:34:23 MSD 2012


If you don't want to send 183, don't try to send early media. It's the only way.

In the dialplan you posted, remove the line: <action application="playback" data="/tmp/test.wav"/>

/Peter


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Från: freeswitch-users-bounces at lists.freeswitch.org [mailto:freeswitch-users-bounces at lists.freeswitch.org] För Dennis
Skickat: den 6 augusti 2012 12:58
Till: FreeSWITCH Users Help
Ämne: Re: [Freeswitch-users] Early media: Sending 180 instead of 183?

we are doing a lot with ISDN-connections, while ISDN in germany seems to be very different from the ISDN in the usa.

our carriers asked us to only send a 180 instead of the 183 because, as i wrote above, 183 messages are not mapped reliable to ISUP as written in the specification ITU-T Rec. Q.1912.5.
the a-leg sends an IAM or INVITE, but does not receive an answer - this can differ from a-leg to a-leg.

we know, that this problem is quite special, but we have the same problems with different carriers.

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