I have a head office and couple of branch offices, Head office IP phones are connected with call manager correctly. head office i have 4500 series switch, in the switch phones are connected with vlan 112, callmanager connected with vlan 100. In the call manager connected switch port is configured as following;
interface GigabitEthernet3/21
description CCM
switchport access vlan 100
switchport mode access
switchport voice vlan 112
service-policy output autoqos-voip-policy
qos trust device cisco-phone
qos trust cos
auto qos voip cisco-phone
tx-queue 3
priority high
shape percent 33
spanning-tree portfast
out side interface connected with pix firewall and configured with vlan 500
interface GigabitEthernet3/24
description FIREWALL
switchport access vlan 500
switchport mode access
switchport voice vlan 112
load-interval 30
spanning-tree portfast
!
problem is none of the branch office phones registered with call manager even though IP connectivity is still there. branch offices do not have any vlan configurations
please any help on this
thanks
theva
