CISCO IP Telephone sets are taking IP from data Vlan.
We have just finished with CISCO IPT installation. We configured Data and Voice Vlans on HP Procurve switches and DHCP on windows 2003 server with option 150 is configured accordigly. Now, when we connect a phone to a network it is taking an ip address from data vlan.
If we configure VLan ID manually on the phone set 7911 than it is taking an ip from the correct voice Vlan.
I dont know if any string value needs to be add at DHCP scope etc. we can't go to each phone and configure vlan ids.