<p class="MsoNormal"><span lang="EN-US">Dear all:</span></p>
<p class="MsoNormal"><span lang="EN-US"> </span></p>
<p class="MsoNormal"><span lang="EN-US"><span style=""> </span>The
scenario is that, when I use 3CX (PCMA) to call XLite, 3CX will hear loud noise
but XLite is fine. And I found that it would only happen when XLite supports
PCMA and PCMU simultaneously. If XLite only support PCMA, everything is fine. </span></p>
<p class="MsoNormal" style="text-indent: 24pt;"><span lang="EN-US">Maybe it is
because of the old version of Freeswitch, I download the latest version
yesterday and re-test. The result is that 3CX hear nothing instead of noise. I
use Wireshark to survey packages, and the server does not transfer UDP packages
to 3CX. I check the log file, it is as below.</span></p>
<p class="MsoNormal" style="text-indent: 24pt;"><span lang="EN-US"> </span></p>
<p class="MsoNormal" style="text-indent: 24pt;"><span lang="EN-US">-----3CX hears
nothing-----</span></p>
<p class="MsoNormal"><span lang="EN-US">2011-02-24 20:17:30.724125 [DEBUG]
sofia.c:4683 Channel sofia/internal/1000@thisjoy.x.x:5060 entering state
[completed][200]</span></p>
<p class="MsoNormal"><span lang="EN-US">2011-02-24 20:17:30.724125 [DEBUG]
switch_core_session.c:709 Send signal
sofia/internal/1000@thisjoy.x.x:5060 [BREAK]</span></p>
<p class="MsoNormal"><span lang="EN-US">2011-02-24 20:17:30.724125 [DEBUG]
switch_channel.c:2790 (sofia/internal/1000@thisjoy.x.x:5060) Callstate
Change EARLY -> ACTIVE</span></p>
<p class="MsoNormal"><span lang="EN-US">2011-02-24 20:17:30.724125 [NOTICE]
switch_ivr_originate.c:3363 Channel
[sofia/internal/1000@thisjoy.x.x:5060] has been answered</span></p>
<p class="MsoNormal"><span lang="EN-US">2011-02-24 20:17:30.724125 [DEBUG]
switch_ivr_originate.c:3408 Originate Resulted in Success:
[sofia/internal/sip:1001@114.24.x.x:56922]</span></p>
<p class="MsoNormal"><span lang="EN-US">2011-02-24 20:17:30.739750 [DEBUG] switch_ivr_originate.c:3408
Originate Resulted in Success: [sofia/internal/sip:1001@114.24.x.x:56922]</span></p>
<p class="MsoNormal"><span lang="EN-US">2011-02-24 20:17:30.739750 [DEBUG]
switch_core_session.c:709 Send signal
sofia/internal/sip:1001@114.24.x.x:56922 [BREAK]</span></p>
<p class="MsoNormal"><span lang="EN-US">2011-02-24 20:17:30.739750 [DEBUG]
switch_core_session.c:709 Send signal
sofia/internal/1000@thisjoy.x.x:5060 [BREAK]</span></p>
<p class="MsoNormal"><span lang="EN-US">2011-02-24 20:17:30.739750 [DEBUG]
switch_ivr_bridge.c:1234 (sofia/internal/sip:1001@114.24.x.x:56922) State
Change CS_CONSUME_MEDIA -> CS_EXCHANGE_MEDIA</span></p>
<p class="MsoNormal"><span lang="EN-US">2011-02-24 20:17:30.739750 [DEBUG]
switch_core_session.c:1116 Send signal
sofia/internal/sip:1001@114.24.x.x:56922 [BREAK]</span></p>
<p class="MsoNormal"><span lang="EN-US">2011-02-24 20:17:30.739750 [DEBUG]
switch_core_state_machine.c:320 (sofia/internal/sip:1001@114.24.x.x:56922)
Running State Change CS_EXCHANGE_MEDIA</span></p>
<p class="MsoNormal"><span lang="EN-US">2011-02-24 20:17:30.739750 [DEBUG]
switch_core_state_machine.c:369 (sofia/internal/sip:1001@114.24.x.x:56922)
State EXCHANGE_MEDIA</span></p>
<p class="MsoNormal"><span lang="EN-US">2011-02-24 20:17:30.739750 [DEBUG]
mod_sofia.c:552 SOFIA
EXCHANGE_MEDIA</span></p>
<p class="MsoNormal"><span lang="EN-US">2011-02-24 20:17:30.974125 [DEBUG] switch_rtp.c:2985
Correct ip/port confirmed.</span></p>
<p class="MsoNormal"><span lang="EN-US">2011-02-24 20:17:30.974125 [DEBUG]
sofia.c:4683 Channel sofia/internal/1000@thisjoy.x.x:5060 entering state
[ready][200]</span></p>
<p class="MsoNormal"><span lang="EN-US">2011-02-24 20:17:31.021000 [DEBUG]
switch_core_session.c:771 Send signal sofia/internal/sip:1001@114.24.x.x:56922
[BREAK]</span></p>
<p class="MsoNormal"><span lang="EN-US">2011-02-24 20:17:31.021000 [DEBUG]
switch_core_session.c:771 Send signal
sofia/internal/1000@thisjoy.x.x:5060 [BREAK]</span></p>
<p class="MsoNormal" style="text-indent: 24pt;"><span lang="EN-US">-----log
end-----</span></p>
<p class="MsoNormal" style="text-indent: 24pt;"><span lang="EN-US"> </span></p>
<p class="MsoNormal" style="text-indent: 24pt;"><span lang="EN-US">When XLite only
supports PCMA, it would be an additional log: </span></p>
<p class="MsoNormal"><span lang="EN-US">2011-02-24 20:16:06.661625 [INFO]
switch_rtp.c:2968 Auto Changing port from <a href="http://192.168.1.1:51508">192.168.1.1:51508</a> to
114.24.x.x:51508</span></p>
<p class="MsoNormal"><span lang="EN-US"><span style=""> </span>And
I test it again by using a public VoIP server (<a href="http://sip.lowratevoip.com">sip.lowratevoip.com</a>), there is
no noise or silence situation, everything is fine.</span></p>
<p class="MsoNormal"><span lang="EN-US"><span style=""> </span>Does
XLite get bugs? Why the public server can deal with the situation? Could anyone
help me?</span></p><p class="MsoNormal"><br><span lang="EN-US"></span></p><p style="text-align: right;" class="MsoNormal"><span lang="EN-US">Sincerely yours,</span></p><p style="text-align: right;" class="MsoNormal"><span lang="EN-US">thisjoy.<br>
</span></p>