tunneling small rtp packets through vpn has big overhead,
better to use application level encryption - encrypted iax or srtp.
PJ



[EMAIL PROTECTED] wrote:
joao,
you can use ssh tunel, pptp or vpn for any sip/iax trunks or users.

turby
-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Pavel Jezek
Sent: Thursday, December 14, 2006 4:48 PM
To: Asterisk Users Mailing List - Non-Commercial Discussion
Subject: Re: [asterisk-users] how to define a secure trunk

as I know, only preliminary support:

0005413: [patch] Secure RTP (SRTP)
http://bugs.digium.com/view.php?id=5413




Joao Pereira wrote:
Can I do the encrypted trunk in SIP? Does Asterisk supports it?

Thanks
Joao Pereira

Pavel Jezek wrote:
http://www.voip-info.org/wiki/view/IAX+encryption



Joao Pereira wrote:
Hello
I would like to define a trunk from my Asterisk to a VoIP provider, but I want to make it secure, because its through the Internet. I want to be sure no one makes calls as being me, and that my calls aren't intercepted. Is it possible to define encrypted trunks? And should I define the trunk in SIP, IAX or something else?

Thanks
Joao Pereira


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