Currently we have several remote locations with a bunch of IP phones in each location. Now IP phones and computers reside in same VLAN, but we are planning to split them to two different VLAN's in the nearest future. The problem is, that there were no DHCP server in these locations and all phones were configured manually (yes, I know, this sound weird). Now we want to implement DHCP for voice VLAN. The problem is, that currently we have no support engineer at remote locations, who is able to enable DHCP on all phones. Is it possible to enable DHCP client on the phone remotely, for example, using SSH. Remote resetting phones to factory defaults also may be an option.