If I move a IP phone from one desk to another does it need to be connected to the same user switch? 1

[SurferdudeHB]

I have a move planned for a department and they are moving from one floor to another (within the same building and network). The voice vlan currently assigned will remain the same.
Do the network port at the new location need to be individually configured or will the phone find the voice vlan on their own?

 

[wpetilli]

depends on your network setup.. layer 2 or layer 3 and the switchports def need to be configured with the data/voice vlan so the phone knows what to do on bootup.

 

[gwebster]

A phone does not "find the voice VLAN on their own". There are different ways that it LEARNS the voice VLAN. Depending upon the mechanism used in your environment, changes may or may not be required.

 

[kyle555]

Extra fun - VLANTEST is the amount of time, in seconds, the phone will DHCP discover on the previously recalled voice vlan. If 0, it's forever.

That means if you use DHCP on the untagged VLAN so option 242=L2QVLAN=101 for the phone to learn VLAN 101, and you move it to VLAN 102 and VLANTEST=0, the phone will never drop old VLAN 102 and DHCP request forever on it.

If you've got PCs behind the phones, you're using either LLDP or DHCP on the default VLAN to tell the phone what the voice VLAN is. So long as that is consistent, you've probably got nothing to worry about.