We plan to implement Avaya IP phone in our network.right now we have all cisco c2950 switches for user connection. shortly we plan to have cisco POE switches for accomdating Avaya Ip phones.
Does cisco POE switches support Avaya Ip phones?we will be having both Data and Voice vlan configuration in switch port.
If its support can we configure better QOS for Voice traffic?
I work for a company that did this 2 years ago. It works very well now but we had some "burn in" work together with our datacom provider, to ensure that QoS really worked all the way from remote site to central office where the Avaya-ACD (PBX) resides.
We have 3560's to connect the workplace and we connect PC to the Avaya phone (Daisy chain). Works nicely all the way from remote sites some 500 km away.
We also b.t.w have home workers over Inet & VPN, these can't have QoS but it works mostly anyway. We even experiment'd with a small site over VPN. That also worked well (We DO have exellent quality Internet though) ...
So yes, Avaya equippment and Cisco stuff play along and QoS is needed when bandwith hits the roof. QoS is tricky though even for specialists - Its easy to limit by mistake (we did :o) ...
Hope this helps!