VOIP via VPN Tunnel using Pro 2040

[beholder95]

We currently have MPLS VPNs connecting our 3 branch offices to our main. We were using a TZ-170, but just upgraded to a Pro2040 as I needed redundent WANs and a DMZ port for the VOIP phone system.

Has anyone tried setting up VPN tunnels and running VOIP over them? I'd like to drop the MPLS VPN and switch to normal T1 or Commercial Cable and run my own VPN as the MPLS are not cost effective for the speed we get. Can get a Full T1 for less then the price of a 512k MPLS.

Any advice (or warnings) on how to proceed with this project?

1 Branch office has 1 employee, the 2nd has 3 employees, and the 3rd has 6. (each with their own PC and VOIP Phone).

Thanks for any help.
- Andy

 

[joepc]

What do you have for a phone system?

 

[beholder95]

Inter-Tel Axxess 8.224

60 Non-IP Phones (located in the main office which is where the phone system is housed) and a total of 12 IP Phones in the branch offices which connect to the phone system via IP.

Thanks,
Andy

 

[joepc]

I have done this before only with a Toshiba IP phone system. The phones would like to suck up tons of bandwidth even tought Toshiba says they only need 60k per phone. We tried to use bandwidth managment with not a whole lot of success. But it does work just have to deal with some silly issues.

So in a nut shell it should work fine for you provided the intertel IP phones don't do something similar. However if you decide to go this route I would not cancel your current connection until you have tested this for a month or so.