We have a number of buildings and different Voice VLANs in each building. When users move from building to building and attempt to take their phone the phones will not grab a new IP address and continue to try the old IP.
We can manually reset them, but I have a ton of users moving from one building to another and I'd like to see if there is a way the phones can do this without manual resets.
We have a DHCP helper address pointing to a Microsoft Windows 2003 DHCP server. New phones have no problem getting addresses.
Any help is appreciated!