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 From:  "Jason Collins" <jason at mammothcomputers dot com>
 To:  "Aaron" <lists at mycommunitynet dot net>, <m0n0wall at lists dot m0n0 dot ch>
 Subject:  RE: [m0n0wall] M0n0, VPN & VoIP
 Date:  Tue, 19 Dec 2006 07:12:34 -0600
Just to clarify -- I think the previous poster when referring to IAX was
encouraging you to use IAX trunking between your two asterisk servers.
There seems to be agreement in the asterisk community that if you can
have two asterisk boxes, one at each location, and trunk IAX between
them, you should do so.  Setting up IAX trunks between two servers is
reasonably well documented, especially if you will be using freepbx or a
trixbox installation.  I should mention however, that I have an IPSEC
monowall vpn between my home and office with only one asterisk server in
the office and a Linksys SPA941 at home and the phone works great.
Programmed it for use at the office, took it home and plugged it in.
You shouldn't have to do any static routes if your IPSEC tunnels are set
up correctly.  (unless I am misreading your post) 

-----Original Message-----
From: Aaron [mailto:lists at mycommunitynet dot net] 
Sent: Monday, December 18, 2006 4:31 PM
To: m0n0wall at lists dot m0n0 dot ch
Subject: Re: [m0n0wall] M0n0, VPN & VoIP

Thanks for all of the replies about this. I'm hoping it will work out
well. I curious about was if an IPSec tunnel will add complexity or
unreliability into the equation than is really needed Bandwidth should
be OK (~500 & ~750Kbps actual upstream throughput = 3+ calls w/ ULAW =
no problem), A Net4801 on one end and a P133 on the other.

Since I do have static IP addresses and asterisk at both ends, it should
be fairly easy to do it without IPSec. But, IPSec might allow for more
flexibility as I could easily register phones to either end (or both)
without having NAT issues with the SIP based phones. But, with asterisk
at both ends, I probably don't need it, and probably don't really need
the IPSec tunnel. However it might allow for a more convenient or
flexible setup - especially when configuring other network
services/devices to work seamlessly for them.

I may be back for more help soon...static routes and IPSec are new for
me and suggestions are still welcome.