CISCO IP phone upgrade firmware
Cisco ip phones can support several voip protocols:
SCCP, H.323, SIP, MGCP.
I had upgraded one cisco ip phone 7905G from H.323 to
SCCP to adapt CCME.
Note the below steps when you upgrade your ip phone.
1.Download correct version firmware to
your TFTP root directory
2.Add and edit the default configuration file
XMLDefault.cnf.xml. The following file is default format:
2000
2427
2428
CP7902080001SCCP051117A
CP7905080001SCCP051117A
P00405000700
SCCP11.8-0-1-0S
CP7912080001SCCP051117A
cmterm_7920.4.0-02-01
P00503011200
cmterm_7936.3-3-9-0
P00308000100
SCCP41.8-0-1-0S
SCCP41.8-0-1-0S
P00308000100
SCCP41.8-0-1-0S
SCCP41.8-0-1-0S
SCCP70.8-0-1-0S
SCCP70.8-0-1-0S
cmterm_7985.4-0-2-0
ATA030203SCCP051201A
About details of the default filek,Please refer to
http://www.voip-info.org/wiki/index.php?page=Asterisk+phone+cisco+79xx
3. Reset your IP phone to download the firmware from your
TFTP server