UC520 and Cisco 7937 Conference Phone

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Feb 16th, 2009
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Is there a way to configure Cisco 7937 Conference phone to work with the UC520? I've installed the Software Pack UC520-4.2.9 and the other phones (7960 and 521SG) are working except the 7937.

Thanks in advance.

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Steven DiStefano Mon, 02/16/2009 - 16:08
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The 7937 is not a  supported phone with 12.4(11)XW9. SBCS 1.4 (UC500 Early adopter pack), which is available now, has support for it.

Steven DiStefano Mon, 02/16/2009 - 16:08
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The EA Software Pack bundles the following CME/CUE/IOS release

CME Release:  7.0
CUE Release: 3.2.1
IOS Release: 12.4(20)T1a

New features added  since the 4.2.9 Software Pack:
    a) The phone loads pack contains  support for the following new IP Phones
         7915 (rev  1.0.2)
         7916 (rev 1.0.2)
         7925 (rev  1.3.1)
         SPA525G (rev 7.1.3)
         CP7937 (rev
     b) The TNP phone loads are updated with release 8.3.5S
    c) The 7936 IP  Phone loads are updated to 3.3.15
    d) Updated CME GUI Version that  is compatible with IOS release 12.4(20)T
aoyawale Mon, 02/16/2009 - 23:09
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Hi Steve,

Thanks for your response. I upgraded the IOS alone to 12.4(20)T1a and the 7937 is now working.


5lchaffin Fri, 02/20/2009 - 07:32
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Where can I down load this software package at?

I have tried to download CME IOS but did nto take it.

5lchaffin Thu, 02/26/2009 - 12:01
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11. Feb 26, 2009 2:19 PM in response to: Larry Chaffin

Re: Lost ringtones after upgrading to new 7.0.2


Regarding the problem your having with the 7935/36 phone buttons I see a similar post titled UC520 and Cisco 7937 Conference Phone is this a new problem or are you still working on the same issue? If its the same issue I'd like to add any new details to the original post.


Douglas Smith


   yes I am still having the same issue and problems with the conf phone, I have the new build of ios and software on uc520.


Moderator Fri, 03/13/2009 - 11:55
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Hi Larry,

Was your issue resolved outside of the community, or do you still need some help with it?


Cisco Moderation Team

5lchaffin Sat, 03/14/2009 - 05:48
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I opened a Cisco tac case SR 610919031, the customer has issues when he call parks a call on the conf phone. No call park number shows up, also he has an issue with transfer. If you transfer to a wrong number you get a busy signal. Then when you hit resume call it drop the call. You cannot bring the call back. The conf phone is running the latest code.

Hello Mr. Chaffin,

I just wanted to let you know that I already contacted the escalation point in order to consult this issue with them basically because everything on the debug seems to be normal. I recreate the issue on my lab and got the exact same result as the  original issue. As soon as they contact me back I'll get back to you.

Best regards.

Mario Abarca

Multi Voice Services

Cisco TAC Engineer


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