[Freeswitch-users] How to register sip phone in VOIP Disabled Areas

[Guillermo Ruiz Camauer]

Depending on your client, you can also go through A VPN.  This could be done from an iPhone or android phone for example.

Guillermo



Sent from my iPhone

> On 24/12/2013, at 15:15, Alex Balashov <abalashov at evaristesys.com> wrote:
> 
>> On 12/24/2013 01:06 PM, Privus 007 wrote:
>> 
>> Besides changing to a non standard port (ie. not using 5060), you could
>> also try to use TLS transport instead of UDP. If signaling traffic is
>> encrypted, it has a better chance of punching through any firewall.
> 
> That depends on how it's being blocked.  If it's being blocked crudely, 
> on a port level, then they'll just block SIP-TLS (5061) too.  If it's 
> being blocked by DPI that identifies the packets as SIP, then switching 
> the utilised ports won't work, and, in fact, encryption and/or tunneling 
> is the only way around it at all.
> 
> -- 
> Alex Balashov - Principal
> Evariste Systems LLC
> 235 E Ponce de Leon Ave
> Suite 106
> Decatur, GA 30030
> United States
> Tel: +1-678-954-0670
> Web: http://www.evaristesys.com/, http://www.alexbalashov.com/
> 
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