[cisco-voip] SCCP vs SIP vs MGCP firmware for IP Phones

[steve.siltman at assurant.com]

We have a small ip phone shop and all our phones run SCCPxx.x.  I've been 
asked why we don't change the firmware on our phones to SIP.  I've been 
doing some reading on this but theres a few simple things I don't 
understand.  To switch an IP phone from SCCP to SIP or MGCP, can I just 
apply that firmware or are there other considerations or pre-reqs?   Do I 
need to purchase a different phone that will only run SIP firmware?  Is 
there a comparison sheet out there that shows the pro's and con's for each 
of these types?  I'd love to run SIP firmware only for the ease of reading 
sniffer traces. 

Any comments appreciated.

Thanks,

Steve Siltman
Assurant, Inc.
Senior Network Analyst
Work: 651-361-4752
Cell: 651-336-5563
steve.siltman at assurant.com
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