[cisco-voip] 7940 to SIP - Manual or plug and play?

Jason Aarons (AM) jason.aarons at dimensiondata.com
Thu Jul 28 16:29:25 EDT 2011

I think it depends on code.  I can attest newer 7942 phones with SIP or SCCP load 8.5/9.x have no problem flipping back and forth from SIP/SCCP based upon how the phone is setup in CCMAdmin v8x. I  tested this throughly before considering SIP loads back in 2010.

I have no idea about older firmware/versions, etc.

From: cisco-voip-bounces at puck.nether.net [mailto:cisco-voip-bounces at puck.nether.net] On Behalf Of Lelio Fulgenzi
Sent: Thursday, July 28, 2011 3:41 PM
To: cisco-voip at puck.nether.net
Subject: [cisco-voip] 7940 to SIP - Manual or plug and play?

If I want to migrate a 7940 from SCCP to SIP, do I have to manually go through the process or can I just plug in a 7940 into the network and when it talks to CallManager, if it's configured as a SIP phone, it will download the SIP firmware?

Lelio Fulgenzi, B.A.
Senior Analyst (CCS) * University of Guelph * Guelph, Ontario N1G 2W1
(519) 824-4120 x56354 (519) 767-1060 FAX (JNHN)
Cooking with unix is easy. You just sed it and forget it.
                              - LFJ (with apologies to Mr. Popeil)

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