We are soon going to upgrade our old PBX system with a new Toshiba CIX/CTX systems in our two locations. We have a PTP T1 leased line between these two locations carrying data traffic. One of these locations is also the Internet gateway for the 2nd location.
The phone guys are telling me that our internal (between locations call) as well as voice mail traffic (centralized) will be on T1. So the T1 will carry both, voice and data. To hook up their new digital PBXs to our data network, they just need two separate IP addresses in each location and they can then connect cat5 cables to our cisco switch in ea. location. Outward and Inward calls will be made through our Telco lines. So we are on VOIP, but partially.
What kind of configuration I would require to do in the routers? QoS? If yes, does Cisco 2611 and 1720 support QoS?