<p>I don</p>
<p><blockquote type="cite">On Oct 10, 2010 6:30 AM, "Jeroen C. van Gelderen" <<a href="mailto:slim@thegreek.com">slim@thegreek.com</a>> wrote:<br><br>Hi Guys,<br>
<br>
I have a legacy Panasonic PBX which does not support CPC/Disconnect<br>
Supervision. Calls from this PBX are sent to Freeswitch by way of<br>
DAHDI/FreeTDM FXO ports (on a Xorcom Astribank). I use tone_detect to deal<br>
with far-end hang-ups. This works fine:<br>
<br>
<!-- Detect busy tone from Panasonic --><br>
<action application="tone_detect" data="busy 350,440 r 0 hangup 4"/><br>
<br>
Some calls from the Panasonic PBX are put in a FIFO and from there they are<br>
sent to a SIP-to-GSM bridge (GoIP) to be terminated on one of 3 GSM phones<br>
in a round-robin fashion.<br>
<br>
The GSM bridge requires me to use "ignore_early_media=true" otherwise the<br>
caller will receive messages like "the number you are calling does not<br>
answer". When I set "ignore_early_media=true" the FIFO correctly keeps<br>
hunting for a GSM phone that is actually answered and will ignore phones<br>
that are busy, no-answer or turned off. This too works fine.<br>
<br>
The problem occurs when the two are combined as follows:<br>
<br>
Panasonic PBX --FXO--> Freeswitch --SIP--> GSM-bridge<br>
<br>
If I enable ignore_early_media then tone_detect doesn't work UNTIL one of<br>
the GSMs is answered. This is a problem when none of the GSMs are answered<br>
and the Panasonic PBX hangs up. The FXO port will stay "up" and the FIFO<br>
will keep hunting until it times out.<br>
<br>
If I don't use "ignore_early_media=true" then tone_detect works fine but<br>
then every telco message gets mistaken for an answered call and the hunting<br>
stops early.<br>
<br>
I tried changing this example line from my fifo.conf:<br>
<br>
<member timeout="30" simo="1" lag="5"><br>
{member_wait=nowait,ignore_early_media=true}sofia/internal/1??????7701@192.1<br>
68.3.11:5060<br>
</member><br>
<br>
to<br>
<br>
<member timeout="30" simo="1" lag="5"><br>
{member_wait=nowait}[ignore_early_media=true]sofia/internal/1??????7701@192.<br>
168.3.11:5060<br>
</member><br>
<br>
in a vain attempt to ignore early media on the SIP leg only. This doesn't<br>
seem to do anything however.<br>
<br>
Can anyone clue me in on what I'm missing? I've snipped the relevant<br>
configuration bits below. I have the feeling I'm missing something obvious.<br>
<br>
Cheers,<br>
-Slim<br>
<br>
----8<----8<----8<----8<----8<----<br>
<br>
<configuration name="fifo.conf" description="FIFO Configuration"><br>
<settings><br>
<param name="delete-all-outbound-member-on-startup" value="false"/><br>
</settings><br>
<fifos><br>
<fifo name="cool_fifo@$${domain}" importance="0"><br>
<br>
<member timeout="30" simo="1" lag="5"><br>
{member_wait=nowait,ignore_early_media=true}sofia/internal/1??????7701@192.1<br>
68.3.11:5060</member><br>
<br>
<member timeout="30" simo="1" lag="5"><br>
{member_wait=nowait,ignore_early_media=true}sofia/internal/1??????7693@192.1<br>
68.3.11:5060</member><br>
<br>
<member timeout="30" simo="1" lag="5"><br>
{member_wait=nowait,ignore_early_media=true}sofia/internal/1??????7698@192.1<br>
68.3.11:5060</member><br>
<br>
</fifo><br>
</fifos><br>
</configuration><br>
<br>
----8<----8<----8<----8<----8<----<br>
<br>
<include><br>
<context name="pbx_test"><br>
<br>
<extension name="test1"><br>
<condition field="${freetdm_span_name}" expression="^span_fxo_test$"><br>
<action application="answer"/><br>
<br>
<!-- Detect busy tone from Panasonic --><br>
<action application="tone_detect" data="busy 350,440 r 0 hangup 4"/><br>
<br>
<action application="playback"<br>
data="ivr/ivr-hold_connect_call.wav"/><br>
<br>
<action application="fifo" data="cool_fifo@$${domain} in"/><br>
<br>
</condition><br>
</extension><br>
</context><br>
</include><br>
<br>
----8<----8<----8<----8<----8<----<br>
<br>
Cheers,<br>
-Slim<br>
--<br>
Jeroen C. "Slim" van Gelderen<br>
<br>
<br>
<br>
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</blockquote></p>