Method of upgrading Cisco Ipphone firmware via external tftp

CiscoCallManagersystem from7.1Upgrade of9.1, part of the phone7941and the7942of thefirmwaredid not succeed from8-3-1sUpgrade to9-3-1SR1. Although such a phone can work, it sometimes restarts automatically. The main reason for the failure to upgrade is8-3-1smust go through an intermediate version8-5-2sTo upgrade to9-3-1SR1. No upgrade successful calls were5a site,Call Managerin one of the sites. AcrossWANThe upgrade is slow. So you want to find a local server method.

1. How to upgrade when the phone is available

2. download the appropriate firmware ZIP package. 1

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3. with tftpd32 Tftpserver Unzip the downloaded firmware package to TFTP

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5. Copy a default configuration XMLDefault.cnf.xml files to the TFTP file directory, which can be downloaded from the CM server.

   Tftp-i 192.168.0.10 GET XMLDefault.cnf.xml

7. < Span style= "font-family: ' The song Body '; > Use Notepad to open xmldefault.cnf.xml firmware

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9. put the phone's Alternation TFTP setting Yes, TFTP server points to the external TFTP server IP address. Set up the phone will restart automatically, start upgrading Firmware

2. When the phone is not available, upgrade the Firmware method.

the Setup method is basically the same, just to build a DHCP Server, Option point to external TFTP server.

3. attach the package for the entire upgrade process .

A. Ipphone The process of acquiring an address

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B. Establish a session with TFTP Sever 192.168.0.10 and transfer the file term42.defaul.loads.

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C. term42.defaul.loads contains the files required for this version and is then downloaded individually

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Method of upgrading Cisco Ipphone firmware via external tftp