Hi jmpk, thanks for your help, my topology is very simple, only have the cisco central and then the L2 switch, there is no L3 edge sw, here is my vlan configs:
hostname "ProCurve Switch 2520-24-PoE"
vlan 1
name "DEFAULT_VLAN"
untagged 1-28
ip address dhcp-bootp
exit
vlan 100
name "VOip"
qos priority 7
ip address dhcp-bootp
tagged 1-28
voice
exit
snmp-server community "public" Unrestricted
primary-vlan 100
thanks