VLAN Config for VOIP / Data

[NorthernGeez]

I am trying to set up 2 'simple' VLANs for our data and new Voice system.

What we are trying to do is stack 4 HP2920's for the data, and stack 2 HP2920s+POE for Voice.

Data will be VLAN 1, Voice on VLAN 10. The IP phones need to pick up DHCP leases from our DHCP server on the Data stack, VLAN 1.

I am not from a networking background, so I think I'm either missing something or completely misreading the manual.

(I've left out the member info as it clutters the config)

switch 1 - Voice POE: Port 2/48 is the uplink to switch 2. Port 1/17 has the test IP phone

hostname "HP-Stack-2920-POE"
ip routing
snmp-server community "public" unrestricted
oobm
   ip address dhcp-bootp
   exit
vlan 1
   name "Data"
   untagged 1/1-1/48,1/A1-1/A2,1/B1-1/B2,2/1-2/47,2/A1-2/A2,2/B1-2/B2
   tagged 2/48
   ip address 10.110.151.251 255.255.254.0
   ip helper-address 10.110.151.2
   exit
vlan 10
   name "VoIP"
   tagged 1/17,2/48
   ip address 192.1.1.1 255.255.254.0
   ip helper-address 10.110.151.2
   voice
   exit

Switch 2:  has uplink to Voice switches in 4/1 our DHCP server is in 4/2 IP 10.110.151.2

hostname "HP-Stack-2920"
ip default-gateway 10.100.115.252
ip routing
snmp-server community "public" unrestricted
oobm
   ip address dhcp-bootp
   exit
router rip
   redistribute connected
   enable
   exit
vlan 1
   name "Data"
   untagged
 1/1-1/48,1/A1-1/A2,1/B1-1/B2,2/1-2/48,2/A1-2/A2,2/B1-2/B2,3/1-3/48,3/A1-3/A2,3/
B1-3/B2,4/2-4/24,4/A1-4/A2,4/B1-4/B2
   tagged 4/1
   ip address 10.110.151.252 255.255.254.0
   exit
vlan 10
   name "VoIP"
   tagged 4/1
   ip address 192.1.1.2 255.255.254.0
   ip helper-address 10.110.151.2
   voice
   exit

what is currently happening is that the IP phone will get a DHCP lease from the 10.110.151 rage, reassign itself to VLAN 10 and reboot. It then fails to pick up a 192.1.1 lease.

I know this should be a farly standard setup, so if you have any pointers or advice, please help.

getting frustrated..