I have Alcatel IP Phones, these ip phones are connected to cisco switch (3560) inturn PC's are conneted to this IP Phone the configuration i did in the cisco switch was
switchport access vlan 10
switchport voice vlan 20
after this these ip phones are not registering with itz call manager, i noticed the DHCP log it is getting IP address from the data vlan not from the voice vlan. I knew that it should be configured that trunk, but can any assit on this.