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New Member

Cisco 9971 IP Phone Registration Issue

Dear All,

I have Cisco 9971 phones which i am trying to install with CUCM 7.1(3). As per datasheet it should be supported.
Initially i could not even see it in the list of devices on the CUCM .Than i installed the device patch from Cisco and list started showing me on the device list.
But still it is not registering.

I was reading on web that you need to upgrade the phones to 7.1(3b) it true?

Also the phones comes with SIP firmware...does the installation process is same for SIP or SCCP?

Can someone guide me how to upgrade the CUCM version and the correct firmware to use?


Hall of Fame Super Red

Re: Cisco 9971 IP Phone Registration Issue

Hi Nomy,

You will need at least 7.1(3a)su1 but I really think moving to 7.1(3b)SU2

would be an excellent call due to numerous bug fixes

Cisco Unified IP Phone 8900 and 9900 Series

Before using the Cisco Unified IP Phone with Cisco Unified Communications Manager, you must install the latest firmware on all Cisco Unified Communications Manager servers in the cluster.

Note You can install Cisco Unified Communications Manager 7.1(3) or 7.1(3a). After you install one of these releases, you must install Cisco Unified Communications Manager*** 7.1(3a)su1. ***



New Member

Re: Cisco 9971 IP Phone Registration Issue

Dear Rob

Thanks for your quick reply.

Can you please let me know how to upgrade my 7.1(3) to 7.1(3)su2?

is the patch available to download from cisco?

CAn u send me the link with the procedure to upgrade?

Hall of Fame Super Red

Re: Cisco 9971 IP Phone Registration Issue

Hi Nomy,

From the Software Downloads Page;

Voice and Unified Communications >IP Telephony> Call Control >Cisco Unified Communications Manager (CallManager)>
Cisco Unified Communications Manager Version 7.1 >Unified Communications Manager Updates >7.1(3b)SU2

Installation Instructions

Software Upgrades


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