We have been supporting Nortel VoIP trunk traffic (PBX to PBX w/VGMC) for several years now without any issues. We are now about to embark on our first VoIP to the desktop pilot using Nortel 1140/1150 handsets along with a CS1000E switch. We use all Cisco networking equipment in our infrastructure. This initial pilot will consist of several 6500E (sup32) closet switches utilizing WS-X6148A-GE-45AF (PoE) modules.
I was wondering if anyone has any experience or know of any design guides that speak to how Nortel VoIP phones interact with Cisco switching equipment. There are a lot of considerations (i.e. PoE, voice VLAN, DHCP parms, QoS etc.) I don't have any prior Cisco VoIP phone experience but have heard of some caveats (i.e. CDP can't be used) between Nortel and Cisco when connecting IP phones.
Any suggestions would be welcome Keith