We have two small offices with about 5 people in each. Each office has a T1 connection with bundled telephone connections with (4) lines. Each office has a Sonic Wall TZ150 routers with a VPN tunnel setup. We have NEC Aspire S NEC KSU's connected to the VPN to provide VOIP intercom between the offices.
The problem occurs when someone is transmitting data and somone is trying to intercom. The data transmission steps all over the voice and we getting clipping of the conversation. We have to wait for the data transmission to complete before continuing the conversation.
I understand this is a QOS issue. If I had a router with QOS cabability could I limit the bandwidth on the data transmission accross the VPN? Can I limit the transmissions going direct to and from the internet?
Is there a router you would reccommend that is under $500.00 with a simple GUI that I could use to help my problem.