Question : Problem: DHCP on uplinked 2950 doesn't work with Voice, Data trunked ports

We have 2 Cisco 2950 switches with a single uplink trunk port between them.  The ports are configured to allow both voice and data on the ports.  VLAN1 is used for data and vlan 2 is the voice.  

Everything works find on the main switch, but on the secondary switch the phones are not able to get DHCP addresses from the phone router that is on the main switch on port 2.  If I plug a computer in directly to the secondary switch it is able to get an IP address from the data router that is on port 1 of the main switch, but once this is uplinked through the phone the computer is not able to get an IP address either.  If I hard code an IP address on the computer and link through the phone, it does work properly.

I have tried to use ip helper-address and this didn't help, but unfortunately the phone router was down at the time so I don't know if this worked or not.

Main Switch
Port 1 - Data Router - 192.168.21.1 DHCP Server
Port 2 - Phone Router - 10.10.10.1? DHCP Server
Ports 3-23 - Phone Connections with Uplink port for PC Connections
Port 24 - Uplink Trunk port to secondary switch

Secondary Switch
Ports 1-23 - Phone Connections with Uplink port for PC Connections
Port 24 - Uplink Trunk port to secondary switch

Please Help!!
Thanks,
Brandon
 
----Main Switch ----
no service pad
service timestamps debug uptime
service timestamps log uptime
service password-encryption
!
hostname CC_SW_A
!
ip subnet-zero
!
!
spanning-tree mode pvst
spanning-tree portfast default
no spanning-tree optimize bpdu transmission
spanning-tree extend system-id
!
!
!
!
interface FastEthernet0/1
 description - Data Firewall
 switchport mode access
!
interface FastEthernet0/2
 description - voice router
 switchport access vlan 2
 switchport mode access
 mls qos trust cos
!
interface FastEthernet0/3 - 23
 description phone ports with trunked data on the phone
 switchport trunk allowed vlan 1,2
 switchport mode trunk
 mls qos trust cos
!
interface FastEthernet0/24
 description - uplink to second switch
 switchport trunk allowed vlan 1,2
 switchport mode trunk
 mls qos trust cos
 spanning-tree portfast disable
!
interface Vlan1
 description data vlan
 ip address 192.168.21.2 255.255.255.0
 no ip route-cache
!
ip http server

------------------------------

--- Secondary Switch ---
no service pad
service timestamps debug uptime
service timestamps log uptime
service password-encryption
!
hostname CC_SW_B
!
ip subnet-zero
!
!
spanning-tree mode pvst
spanning-tree portfast default
no spanning-tree optimize bpdu transmission
spanning-tree extend system-id
!
!
!
!
interface FastEthernet0/1-23
 description phone ports with trunked data on the phone
 switchport trunk allowed vlan 1,2
 switchport mode trunk
 mls qos trust cos
!
interface FastEthernet0/24
 description - uplink to main switch
 switchport trunk allowed vlan 1,2
 switchport mode trunk
 mls qos trust cos
 spanning-tree portfast disable
!
interface Vlan1
 ip address 192.168.21.3 255.255.255.0
 no ip route-cache
!
ip http server

Answer : Problem: DHCP on uplinked 2950 doesn't work with Voice, Data trunked ports

Well, I have no idea what the problem was.  The customer received their purchased switches and we put the identical configuration on them as was posted and everything worked without an issue.  

It appears that we must have a hardware issue with our switches.