[TriLUG] Site to Site VPN over the net? Good enough for VoIP?

[jonc]

If you are connecting multiple sites then your best bet is to use a
hosted provider. In your case, you might look at Speakeasy (since you
are going to go with their DSL service anyway) - though we wouldn't run
away if you called us :-)

Their are some problems with running VoIP across a VPN channel. The most
common is that latency problems rise logarithmically - and latency (or
rather the lack of it) is the life blood of VoIP. Also, you'll need to
make sure your tunnel handles traffic across all UDP ports and a few TCP
ports.

You'll get better quality if you just send the VoIP directly across your
internet connection and out to your Soft-Switch (or to an secure
Asterisk box that then relays the connection into your Soft-Switch).

Good Luck - Jon Carnes 

On Tue, 2006-01-31 at 08:54, Chad Thomsen wrote:
> Was wondering if anybody is doing this successfully at there BUSINESS (not
> looking at home usage).  I have a 7 site network and was thinking about
> converting from ITC Deltacom frame to speakeasy.net DSL (since they offer a
> CIR like service) but was wondering if very many folks have been successful
> with it.  BIG question is performance.  What happens if the traffic on the
> internet backbone is really heavy?  Would it not effect the performance of
> the VoIP?  Speakeasy.net can gaurantee minimum bandwidth to and form the
> "intenet cloud" from each location but once traffic is traveling accross
> that cloud you are at the mercy of the internet backbone.
> 
> Any feedback would be appreciated.
> 
> Thanks!
> 
> Chad