<div>
Hi there<br />
<br />
I don't think that is possible because 7961 and the 7962 has different phone tamplate.<br />
<br />
You need to add the new phone as new phone in the call manager. <br />
<br />
<br />
regards.
</div>


<div>
I did try that but it is not listed as a choice<br />
I assume I need to download a device driver of some sorts?
</div>


<div>
ah Ok what version of Cisco call manager do you use ?<br />
<br />
<br />
regards.
</div>


<div>
4.1 at the moment<br />
upgrade coming in a few months
</div>


<div>
<div class="content wysiwyg-content">
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. <br />
The engineer for the system is out of the office temporarily.<br />
I am looking for a quick work around.<br />
Any thought?
</div>
</div>


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?

Hi there

I don&#39;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.

I did try that but it is not listed as a choice
I assume I need to download a device driver of some sorts?

ah Ok what version of Cisco call manager do you use ?


regards.

4.1 at the moment
upgrade coming in a few months

converting  from a Cisco 7961 to a 7962 on the fly

IP telephony (Internet Protocol telephony) is a general term for the technologies that use the Internet Protocol's packet-switched connections to exchange voice, fax, and other forms of information that have traditionally been carried over the dedicated circuit-switched connections of the public switched telephone network (PSTN). Using the Internet, calls travel as packets of data on shared lines, avoiding the tolls of the PSTN. The challenge in IP telephony is to deliver the voice, fax, or video packets in a dependable flow to the user.

IP Telephony

Voice over IP (VoIP) is a methodology and group of technologies for the delivery of voice communications and multimedia sessions over Internet Protocol (IP) networks, such as the Internet. Other terms commonly associated with VoIP are IP telephony, Internet telephony, broadband telephony, and broadband phone service. The term specifically refers to the provisioning of communications services (voice, fax, SMS, voice-messaging) over the public Internet, rather than via the public switched telephone network (PSTN).  Examples of the VoIP protocols are H.323, Media Gateway Control Protocol (MGCP), Session Initiation Protocol (SIP), H.248 (also known as Media Gateway Control (Megaco)), Real-time Transport Protocol (RTP), Real-time Transport Control Protocol (RTCP), Secure Real-time Transport Protocol (SRTP), Session Description Protocol (SDP), and Inter-Asterisk eXchange (IAX).