7960 gets stuck in " configuring IP" while in use

[christianluven]

Hi all,

Some phones in my environment sometimes during a day disconnect from CUCM and show only " configuring IP" after unplug and plug the ethernet cable the phones work fine for a undefined time until this happens again.

I already changed the Ethernet cable, but this didn't solve the Problem.

It's only a hand full of about 200 Phones and it is everytime the same phones.

What could this issue be?

Greetings

Christian

[david-lima]

Hi Cris, Does the phones are configured with DHCP or static IP?

If DHCP, try using static ip configuration,

Or try to reset the phone to factory defaults, check this link.

http://www.cisco.com/en/US/products/hw/phones/ps379/products_tech_note09186a00800941bb.shtml

Hope this help

David

[christianluven]

Thanks for your reply.

They are configured through DHCP.

I will try to switch to static IP-Configuration and report.

Strange issue that only few phones are affected.

[david-lima]

Hi, What CUCM version do you have?, An ip phone model in particular?, Also check the switch configuration is you are using VLANS, If is possible, try to replace the phone with another phone to check if the result is the same.

Hope this help

David

[christianluven]

We use a 4.1.3 till next week, the we do an upgrade to 6.1.2.

Mainly 7960 are involved. After changing to a new phone, the new phone is not affected by this behavior.

Greetings

Christian

[david-lima]

Hi Cris, did you try to reset the phone to factory defaults?, Also try to delete the phone configuration from the CCM database and re-insert it.

Hope this help

David