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443 for sip over TCP works pretty well, but for UDP i usually just
pick a few random port numbers. The more common the more likely you
are to get a ALG for another protocol inspecting them and maybe
doing silly things. I prefer it to go un-inspected if possible. <br>
<br>
<br>
<div class="moz-cite-prefix">On 6/26/2014 10:20 AM, Mark R Lindsey
wrote:<br>
</div>
<blockquote
cite="mid:D12AE9F9-22CC-4A96-844F-04DF8773B8A8@e-c-group.com"
type="cite">
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Do you think "Seemingly random" is really important? I've had good
luck with TCP/443 for SIP.
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<div><br>
<div apple-content-edited="true">
<div style="color: rgb(0, 0, 0); font-family: Calibri;
font-style: normal; font-variant: normal; font-weight:
normal; letter-spacing: normal; line-height: normal;
orphans: 2; text-align: -webkit-auto; text-indent: 0px;
text-transform: none; white-space: normal; widows: 2;
word-spacing: 0px; -webkit-text-size-adjust: auto;
-webkit-text-stroke-width: 0px; word-wrap: break-word;
-webkit-nbsp-mode: space; -webkit-line-break:
after-white-space; "><i style="color: rgb(23, 127, 44);
font-family: Consolas; font-size: x-small; ">>>>
<a moz-do-not-send="true" href="mailto:mark@ecg.co">mark@ecg.co</a>
+1-229-316-0013 <a moz-do-not-send="true"
href="http://ecg.co/lindsey">http://ecg.co/lindsey</a></i></div>
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<div>On Jun 26, 2014, at 11:57 , Ryan Delgrosso <<a
moz-do-not-send="true"
href="mailto:ryandelgrosso@gmail.com">ryandelgrosso@gmail.com</a>>
wrote:</div>
<br class="Apple-interchange-newline">
<blockquote type="cite">
<div bgcolor="#FFFFFF" text="#000000" style="font-family:
Calibri; font-size: 12px; font-style: normal;
font-variant: normal; font-weight: normal;
letter-spacing: normal; line-height: normal; orphans:
auto; text-align: start; text-indent: 0px;
text-transform: none; white-space: normal; widows: auto;
word-spacing: 0px; -webkit-text-stroke-width: 0px;">Add
2 or 3 more seemingly random ports for the SBC to listen
on. Also add them in TCP.<span
class="Apple-converted-space"> </span><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.<span
class="Apple-converted-space"> </span><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.<span class="Apple-converted-space"> </span><br>
<br>
-Ryan<br>
<br>
<br>
<div class="moz-cite-prefix">On 6/26/2014 7:34 AM, Feby
Francis wrote:<br>
</div>
<blockquote
cite="mid:002d01cf914b$c2b41430$481c3c90$@crosstel.com"
type="cite"><span><Mail Attachment.gif></span>
<div class="WordSection1" style="page: WordSection1;">
<div style="margin: 0in 0in 0.0001pt; font-size:
12pt; font-family: Verdana, sans-serif; color:
rgb(106, 106, 106);">Experts,<o:p></o:p></div>
<div style="margin: 0in 0in 0.0001pt; font-size:
12pt; font-family: Verdana, sans-serif; color:
rgb(106, 106, 106);"><o:p> </o:p></div>
<div style="margin: 0in 0in 0.0001pt; font-size:
12pt; font-family: Verdana, sans-serif; color:
rgb(106, 106, 106);">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></div>
<div style="margin: 0in 0in 0.0001pt; font-size:
12pt; font-family: Verdana, sans-serif; color:
rgb(106, 106, 106);"><o:p> </o:p></div>
<div style="margin: 0in 0in 0.0001pt; font-size:
12pt; font-family: Verdana, sans-serif; color:
rgb(106, 106, 106);">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></div>
<div style="margin: 0in 0in 0.0001pt; font-size:
12pt; font-family: Verdana, sans-serif; color:
rgb(106, 106, 106);"><o:p> </o:p></div>
<div style="margin: 0in 0in 0.0001pt; font-size:
12pt; font-family: Verdana, sans-serif; color:
rgb(106, 106, 106);"><o:p> </o:p></div>
<div style="margin: 0in 0in 0.0001pt; font-size:
12pt; font-family: Verdana, sans-serif; color:
rgb(106, 106, 106);">Thanks for all the help and
advices,<o:p></o:p></div>
<div style="margin: 0in 0in 0.0001pt; font-size:
12pt; font-family: Verdana, sans-serif; color:
rgb(106, 106, 106);"><span>Feby Francis</span><span
style="font-size: 9.5pt; font-family: Arial,
sans-serif; color: rgb(34, 34, 34);"><o:p></o:p></span></div>
<div style="margin: 0in 0in 0.0001pt; font-size:
12pt; font-family: Verdana, sans-serif; color:
rgb(106, 106, 106);"><o:p> </o:p></div>
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