CCM version to support 7942G and 7937G

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Sep 14th, 2010
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Hi to everyone,
The current version of CCM is 4.2(1)SR1b and the requirement here is to support 7942G and 7937G phone models.

It would be greatful if you guys help me here to find out the exact stable CCM version to support both phone models.

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Rob Huffman Tue, 09/14/2010 - 07:18
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Hi Siva,

Don't forget that CCM 4.2(3) is near it's EoL

EOS/EOL for the Cisco Unified CallManager Version 4.2

The 7937G is supported in CCM 4.2(3) with the SR (SR2) and Device Pack (DevPack-36 or later) listed below. Once these upgrades are done the 7937 will be added to the available "Add a new Phone" selections (and Device Defaults Page);

Compatible Cisco Unified CallManager Release - 7937G

Note: If you have a Cisco Unified CallManager on a Release earlier than 4.1(3)SR5, do NOT install this firmware. You must first upgrade your Cisco Unified CallManager to one of the compatible releases listed


ciscocm.4-1-DevPack-59 or later


ciscocm.4-2-3-DevPack-36 or later


ciscocm.4-3-1-DevPack-16 or later


cmterm-devicepack5.1.2.3111-1 or later


cmterm-devicepack5.1.3.1104 or later


cmterm-devicepack6.0.1.2111-1 or later


No device pack required, native support

From the Cisco Unified IP Conference Station 7937G Firmware Version 1.1(1) - ReadMe;

7942G Call Control Compatibility

Supported in Cisco Unified Communications Manager Versions 4.1(3)sr5b, 4.2(3)sr2b, 4.3(1), 5.1.1(b), 5.1(2), 6.0(1) and greater

Supported in Cisco Unified Communications Express and SRST Version 4.1

Cisco Unified IP Phone 7942G

Hope this helps!


sivakumar.kvp Tue, 09/14/2010 - 07:50
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Hi Rob,

Thanks for your immediate reply.

Here am summarizing,

7937G - 4.2(3)SR2  (DevPack-36 or later)

7942G - 4.2(3)SR2b

What i understand here is, i can upgrade to 4.2(3)SR2b with DevPack-36 or later to support 7937G ; pls correct me if am wrong ?

Secondly, i dont see any upgrade path from  4.2(1)SR1b to 4.2(3)SR2b.Request you to guide me here as well pls.



William Bell Tue, 09/14/2010 - 07:20
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I would look at Device Pack 4.2.3-60. Requires a minimum of 4.2(3)SR1.

Check out the following URL:


Remember that if you are using a device pack to add new devices to the

schema then you will need to reboot the entire cluster.




On 9/14/10 10:08 AM, "sivakumar.kvp"

raghu_pmj Mon, 11/08/2010 - 02:43
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Need to upgrade the call manager from existing version to 4.2(3)sr2b which would support 7942 IP phones. The patch is available on below URL

Before proceed on upgradation, take the backup of call manager using BARS 4.0.12 or 4.0.13 version.


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