IP PHONE REGISTRATION ISSUES

[ahmedmaged9432]

i have IP phone showing verify your network connection and won't work , when i enter static IP, it works ,in DHCP server i have  two IP scope one of them is complete the other have valid IP . is this require any thing in CUCM

[Jaime Valencia]

If the device is already configured in CUCM, or your CUCM is configured for auto-registration, that's it.

I'd make sure your DHCP has all the required parameters and that the device does get all the required network configuration to reach out to CUCM.

[ahmedmaged9432]

this is new phone has'not been configured and dhcp server has all two scope but the phone won't take IP unless I assgin static IP for it

[HARIS_HUSSAIN]

Nothing is required in CUCM for IP Address assignment.
1) Have you configured DHCP Relay so that DHCP Request are relayed to DHCP Server
2) Try creating a DHCP Server in the same subnet in switch or router.
3) Do a packet capture on PHone to see if we are receiving DHCP Response back. Just connect a PC with Wireshark Installed on Back of Phone.

*** Please rate helpful post; Mark "Accept as a Solution" if applicable

Thanks,
Haris

[Maren Mahoney]

To add to what Haris suggested:

In the Status Messages on the phone, does it show DHCP Timeout or TFTP Timeout?

Maren