8851 Not Registring

[Siva chinap]

We are using cucm 11.0(1) version, 8851 phone is unable to register. do i need to upgrade or any bug defect?

[Jaime Andres Roldan Schmidt]

Is the phone getting IP address? Is the VLAN properly set?

To which TFTP server is the phone connecting?

Does that node have the TFTP service running?

What is the status of the phone on the CUCM? None or Unregistered? Does the CUCM see the IP address of the phone?

To perform a firmware upgrade you will need to get the phone registered in first place.

[Andrew West]

Is the phone getting an IP address?

Do you have a DN built on Key 1 also?

[Siva chinap]

yes it's getting ipadd.

no we don't have built on key..

[Aman Soi]

Hi Siva,

can u try adding the phone manually in Call manager and check whether it is getting registered ?

regds,

aman

[Siva chinap]

Dear Aman,

Even i tried that... Still no luck.

[Siva chinap]

Phone get all information but its not getting registered..

[Mohammed al Baqari]

From CUCM cli can you ping the IP address assigned to the IP phone. 

[Siva chinap]

I did all basic testing from side.. But still its not getting registered.

[Jaime Andres Roldan Schmidt]

Siva, if the phone is registering with SIP, please remember that you need to set a extension (i.e. 1001) for the phone to be able to register.

[Siva chinap]

Dear Jaime,

I pushed the configuration through BAT, but still it's not getting registered.  I did all my basic testing. I am wondering any bug defect would cause this issue?

[Jaime Andres Roldan Schmidt]

Siva,

Please try a factory reset (via keypad method) and then a manual phone registering without BAT.

If it does not work open a case with TAC and perform an RMA. I don't belive this is related to a FW bug.

Best Regards, Jaime.

[Siva chinap]

Thanks dear..

I already done multiple factory reset.. there is no luck.. Better i will go and do a RMA...

[devils_advocate]

Do a packet capture on the phones switchport to see if its getting the config file from TFTP and whether its actually attempting to register.

What do the logs in the Phone Web page show?

[Siva chinap]

let me do a capture packet and let you know.