Good day! I would like to ask if anyone has encountered this issue that an IPPhone cannot register if it is located in other VLAN. The scenario is like this, the ucm belongs to VLAN 10, 192.168.10.0/24 and the ip phones belongs to VLAN 15, 192.168.15.0/24. When I tried to connect the IPPhones to the UCM6300 its just not work, but when the said phone is on the same subnet as the UCM at VLAN 10, it works just fine.
I tried to ping UCM6300 and the IPPhone while on different VLAN and they are both reachable from both ends. What could be the problem? Has anyone encountered and found a solution? Thank you very much.