Cisco CP7821 registration issue

[network.sdsla]

Hi everyone,

I am facing a issue with a Cisco CP7821 to register on a VG running Call Manager with SIP protocol.

The phone is tryng to use a IP 192.168.10.3 but this ip is not in our range and not configured on VG to deliver this config through CDP.

<String name="UnifiedCMIPAddress">192.168.10.3</String>

<String name="LocalPort">50015</String>

<String name="TimeStamp">1483958827601</String>

<Enum name="ReasonForOutOfService">22</Enum>

Anyone had the same issue?

Thanks

[Jitender Bhandari]

Hi

ReasonForOutOfService=22   --  TCPclosedUcmInitiatedReset - The device closed the TCP connection due to a reset command from the Cisco Unified CM

What CUCm version are you running

Is the issue with one phone or more

Do you have other 7821 working?

JB

[network.sdsla]

Hi Bhndari,

CME Version 10.5

Only one phone is facing this issue, I have more 7821 working. I just installed 10 but 1 got that. We did factory reset many times but it did not worked.

Thanks

[Carlo Poggiarelli]

Hi, 

Can you please post the output of status messages of  IP Phone.

Also verify if the IP phone is receiving an invalid TFTP address from the DHCP server.

A test you can do, is to manually configure the IPV4 section on the IP phone, defining the correct tftp server address.

Please let me know

HTH

Regards

Carlo

[Suresh Hudda]

Try to remove itl file from phone or factory reset it once to check.

Suresh

[Peter Kuznicki]

I'm having the exact same issue but with 7841's.  All brand new phones. Some phones will register and some will get rejected. When I view the phone logs of the rejected phones I noticed the following: UnifiedCMIPAddress">192.168.20.3 (we use the class A private range 10.X.X.X)
ReasonForOutOfService">24
Is this Cisco's Test CUCM IP and the flash on these phones have not been properly erased?  Could someone please confirm as I have over 1400 phones and this will be a nightmare to erase ITL file manually. Thanks.