When we using both Voice and Data VLAN in the same switch port, Can we keep the Data traffics in VLAN 1 and assign a new VLAN for Voice Traffic..?
interface GigabitEthernet x/y
switchport access vlan 1
switchport mode access
switchport voice vlan 20
Is this possible? Please help.
Yes its possible.
for your configuration, phones will work in vlan 20 and data in 1
Yes, this is possible. You may find the following post on the Community useful:
You can find quite some info in Community concerning this subject, have a look on this one: