[VoiceOps] Solving port blocking issue @ softphone

[Mark R Lindsey]

Do you think "Seemingly random" is really important? I've had good luck with TCP/443 for SIP.

>>> mark at ecg.co +1-229-316-0013 http://ecg.co/lindsey

On Jun 26, 2014, at 11:57 , Ryan Delgrosso <ryandelgrosso at gmail.com> wrote:

> Add 2 or 3 more seemingly random ports for the SBC to listen on. Also add them in TCP. 
> 
> 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. 
> 
> 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. 
> 
> -Ryan
> 
> 
> On 6/26/2014 7:34 AM, Feby Francis wrote:
>> <Mail Attachment.gif>
>> Experts,
>>  
>> 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.
>>  
>> Is there any work around to solve the port blocking problems? We use standard 5060 on the SBC and my switch vendor is Broadsoft.
>>  
>>  
>> Thanks for all the help and advices,
>> Feby Francis
>>  
>> 
>> 
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