Protocol Application Invalid with option 150 in the config

I am getting the protocol application invalid when i went to version 7.5
so i put in the option 150 and the voip-server and my ip but the phone still wont boot i have done a factory default reset which is about all i can do on the phone. bleow is my dhcpd.conf file it matches cat24.net instructions Please Help...

my trixbox server is 10.10.0.7
router is 10.10.0.1
phone range is 10.10.0.100-10.10.0.150

ddns-update-style interim;
ignore client-updates;

option voip-tftp-servers code 150 = ip-address;
option voip-tftp-servers 10.10.0.7;

subnet 10.10.0.0 netmask 255.255.255.0 {
option routers 10.10.0.1;
option subnet-mask 255.255.255.0;
option nis-domain "";
option domain-name "";
option domain-name-servers 10.10.0.1;
option ntp-servers 10.10.0.7;
option tftp-server-name "10.10.0.7";
range dynamic-bootp 10.10.0.100 10.10.0.150;
default-lease-time 3600;
max-lease-time 7200;
}