I have a 4621 on a R11 G3si aliased as a 4620. It will find the dhcp server and get an address, connect to the TFTP server and update software, get the station information from the switch and the phone appears to operate (push a line appearance and the speaker comes on, busy indicators work, etc). But, there is not dial tone, you cannot dial a number, and it does not ring. I am sure we have missed something simple and I hope someone can point me in the right direction.
Thanks
Thanks