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Add 2 or 3 more seemingly random ports for the SBC to listen on.
Also add them in TCP. <br>
<br>
have the softphone use DNS naptr records to order UDP then TCP srv
records, and in each SRV record offer the same proxy with different
ports. This will cause the softphone to try multiple ports on UDP
then multiple ports on TCP until it finds success. <br>
<br>
If the softphone doesn't support NAPTR, then you can use SRV only
but you lose the ability to try different transports. If it doesnt
support SRV records, find another softphone. <br>
<br>
-Ryan<br>
<br>
<br>
<div class="moz-cite-prefix">On 6/26/2014 7:34 AM, Feby Francis
wrote:<br>
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<p class="MsoNormal">Experts,<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">I have a customer who travels a lot and
uses our softphone offering, I need a solution to overcome the
situations when the port 5060 is blocked.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Is there any work around to solve the port
blocking problems? We use standard 5060 on the SBC and my
switch vendor is Broadsoft. <o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Thanks for all the help and advices,<o:p></o:p></p>
<p class="MsoNormal"><span style="font-family:"Californian
FB","serif";color:black">Feby Francis</span><span
style="font-size:9.5pt;font-family:"Arial","sans-serif";color:#222222"><o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
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