converting from a Cisco 7961 to a 7962 on the fly

In the past I have been able to switch from one 7961 to another by changing the MAC address in CM. But now I have to use a 7962 and it will not load giving mismatch and authentication errors etc.
The engineer for the system is out of the office temporarily.
I am looking for a quick work around.
Any thought?
GoHuskersAsked:
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greekstonesCommented:
Ok I see

According to Cisco you need to have the SCCP version of firmware release 8.3(2)SR1 is compatible with Cisco Unified Communications Manager releases 6.0, 5.1, 5.0, 4.3, 4.2, 4.1, 4.0, and 3.3.

So basicly the phones needs to have the firmware 8.3(2)SR1 to be able to work with version 4.1

please for more information please visit the Cisco link below

Link 1
http://www.cisco.com/en/US/docs/voice_ip_comm/cuipph/7975g/firmware/8_3_2_sr1/english/release/notes/75832sr1.html

Link 2
http://www.cisco.com/en/US/prod/collateral/voicesw/ps6788/phones/ps379/ps8536/prod_qas0900aecd80699c20.html


Product Compatibility: General

Q. What Cisco Unified Communications Manager release is required for the Cisco Unified IP Phone 7962G and Cisco Unified IP Phone 7942G?
A. The Cisco Unified IP Phone 7962G and Cisco Unified IP Phone 7942G require one of the following releases at minimum: Cisco Unified CallManager 4.1(3)sr5b or 4.2(3)sr2b, or Cisco Unified Communications Manager 4.3(1), 5.1(1)b, 5.1(2), or 6.0(1).

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greekstonesCommented:
Hi there

I don't think that is possible because 7961 and the 7962 has different phone tamplate.

You need to add the new phone as new phone in the call manager.


regards.
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GoHuskersAuthor Commented:
I did try that but it is not listed as a choice
I assume I need to download a device driver of some sorts?
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greekstonesCommented:
ah Ok what version of Cisco call manager do you use ?


regards.
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GoHuskersAuthor Commented:
4.1 at the moment
upgrade coming in a few months
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