t38_gateway_detect_timeout var<br><br><div class="gmail_quote">On Wed, Jul 28, 2010 at 11:12 AM, Weera Suriya <span dir="ltr"><<a href="mailto:weerasuri@gmail.com">weerasuri@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">
Hello list,<div>I able to send & receive faxes via SS7 link. but I have a small problem with "switch_core_media_bug". I noticed "Media bug" activate for first 10 seconds to 20 seconds against SIP channels.</div>
<div>most of our customers use Tele/FAX option on Fax machines. that means ; they answer the call manually (as a voice call) If there was a fax then they activate Fax mode. the problem is FS can't detect CNG tones after 20 seconds, because "switch_core_media_bug" was removed from the particular channels. If the destination fax machine can generate CNG tones within 10 ~ 20 seconds Then FS can detect CNG tones and change in to T.38 mode.</div>
<div><br></div><div>is there any way to increase the window of time (switch_core_media_bug) to listen for the CNG tones on SIP channels? </div><div><br></div><div><div>This is my dialplan for G711(from PSTN/SS7 via SIP) to T.38(to SIP ATAs)</div>
<div>------>8--------</div></div><div><div> <extension name="g711_to_t.38"></div><div> <condition field="destination_number" expression="^1(0\d{8})$"></div><div><span style="white-space:pre-wrap"> </span><action application="pre_answer"/><span style="white-space:pre-wrap"> </span></div>
<div><span style="white-space:pre-wrap"> </span><action application="set" data="ringback=%(1000, 4000, 400.0, 400.0)"/></div><div><span style="white-space:pre-wrap"> </span><action application="t38_gateway" data="peer"/></div>
<div><span style="white-space:pre-wrap"> </span><action application="bridge" data="sofia/external/$<a href="mailto:1@192.168.11.53" target="_blank">1@192.168.11.53</a>"/></div><div><span style="white-space:pre-wrap"> </span><action application="hangup"/></div>
<div> </condition></div><div> </extension></div></div><div><br></div><div>This is my dialplan for T.38(from SIP ATAs) to G711(to PSTN/SS7 via SIP)</div><div>------>8--------</div><div><div> <extension name="t.38_to_g711"></div>
<div> <condition field="destination_number" expression="^(0\d+)$"></div><div><span style="white-space:pre-wrap"> </span><action application="ring_ready" /></div>
<div><span style="white-space:pre-wrap"> </span><action application="set" data="ringback=%(1000, 4000, 400.0, 400.0)"/></div><div><span style="white-space:pre-wrap"> </span><action application="start_dtmf_generate" data="true"/></div>
<div><span style="white-space:pre-wrap"> </span><action application="t38_gateway" data="self"/></div><div><span style="white-space:pre-wrap"> </span><action application="bridge" data="sofia/external/$<a href="http://1@192.168.11.54:5070" target="_blank">1@192.168.11.54:5070</a>"/></div>
<div><span style="white-space:pre-wrap"> </span><action application="hangup"/></div><div> </condition></div><div> </extension></div></div><div>------>8--------</div>
<div><br></div><div>Thank you.</div><div><br></div><font color="#888888"><div>Weera Suriya </div>
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