Upgrading Cisco 7940 Firmware and Configuring

Upgrading Firmware

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  Key things to remember before beginning the upgrade

• Must go from SCCP 3.1 to SIP 2.3 to SIP 6.3 to SIP 7.5. All version 8 software seem to go into a never ending reboot cycle
• At a certain point **# no longer unlocks the phone and you must type the password "cisco" in to configure the phone
• All of Cisco's information about upgrading firmware can be found at:
  http://www.cisco.com/en/US/docs/voice_ip_comm/cuipph/7960g_7940g/mgcp/firmware/matrix/frmwrup.html

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  Download firmware from
  http://tools.cisco.com/support/downloads/go/ImageList.x?relVer=6.3&mdfid=268437897&sftType=Session+Initiation+Protocol+%28SIP%29+Software&optPlat=&nodecount=27&edesignator=null&modelName=Cisco+Unified+IP+Phone+7940G&treeMdfId=278875243&modifmdfid=null&imname=&treeName=Wireless&hybrid=Y&imst=N

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  Place necessary files in root of TFTP server

• The phone first looks for OS79XX.txt.  The OS79XX.TXT file must only contain the name of the file that you attempt to load, without the .bin extension.
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  If you convert from SCCP to SIP and the version you attempt to load is SIP 2.3 software or earlier, the OS79XX.TXT must be in the format of POS3xxyy . For example, if the SIP software version is 2.2, the file must contain POS30202.
•  If you convert from SCCP to SIP and the version you attempt to load is SIP 3.0 software or later, the OS79XX.TXT must be in the format of POS3-xx-y-zz . For example, if the SIP software version is 7.4, the file must contain POS3-07-4-00.
•  If you convert from SIP to SCCP, the OS79XX.TXT must be in the format of P003aabbccdd. For example, if the SCCP software version is 7.2(3), the file must contain P00307020300.

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  Configure network settings of the phone

• Turn DHCP off
• Set IP Address
• Set netmask
• Set default gateway
• Set DNS

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  Set address of primary TFTP server

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  Reboot the phone to begin downloading the new firmware

Configuring Phone

• The SipDefault.cnf has all of the main configuration settings that are the same for each phone.
• The SipMAC.cnf has all of the phone specific settings line/port and authentication information.
• The SEPMAC.cnf.xml just tells what load to use
• The O79XX.txt just tells what load to use (it is loaded first in most cases)