Avaya 5621 Tech Tip

[Trems]

On an IP Office R6 V2 Can anyone explain the benefit of using the VPN on the individual 5621 phones as described on Tech Tip 184 vs a VPN from point to point with Netgear FVS338 Routers.

I have 2 sites one with the IP Office, one with 2-5621 sets as Endpoints. Currently set up over a VPN. Call quality is terrible only on outbound, inbound voice is great. Even when I assign priority to ports 49152-53246.

I have a very difficult customer I am trying to work with as well..Bandwidth is 3-5 MBS down 299KBS up...yes KBS

The customer is refusing to upgrade service. I have disconnected everything on the network and calls sound fine..to me an obvious bandwidth issue but I am trying to find a work around...

Any Ideas?

 

[intrigrant]

Small calculation....
The codec used is G.729 that gives 30kbs over a IpsecVPN which means bandwith usage grow to 66kbs, available is 299 with a 6:1 overbooking ( optimistic ) which gives a minimum available bandwith of 299:6=50kbs and a call always need 66kbs at minimum.
If the full upload capacity isnot available the sound gets disrupted, 299kbs is by far not enough!

 

[qtelcom]

Try G.723, although it sounds pretty compressed.

 

[tlpeter]

Point to point vpn will have the same issues.
They just need more bandwidth.


When you pay peanuts, you get monkeys!

honey, i fried the IP Office !!!

Sarcasm, it's only one of the services I offer.