[Asterisk-Users] NAT Far End Traversal

[Michael Graves]

On Wed, 09 Mar 2005 12:54:34 +0400, Jean-Michel Hiver wrote:

>Leo Ann Boon wrote:
>
>>
>>>
>>> Another question... Are you aware of a SIP ATA or phone that has some 
>>> kind of VPN (i.e. PPTP) client embedded in? This would make the NAT 
>>> problem go away nicely and provide added security...
>>
>>
>> The Zulty's phones support VPN. Then again, many firewalls don't pass 
>> through VPN traffic nicely. Would be cool if we can have a phone that 
>> supports SSL VPNs like OpenVPN.
>
>Agreed. In my experience, OpenVPN is a breeze to work with.

Forgive my lack of depth in this area, but aren't SSL based VPNs
fundamentally IP centric? Whereas RTP & IAX2 streams are UDP? I had
read some time ago about a company that was planning to revolutionize
voip through SSL based VPNs, they met with much scorn from those who I
thought were knowledgable people.

Michael
--
Michael Graves                           mgraves at pixelpower.com
Sr. Product Specialist                          www.pixelpower.com
Pixel Power Inc.                                 mgraves at mstvp.com

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