Updating the firmware on Cisco phones is simple. They just need a tftp server to update its firmware and it doesnt even have to be located on the asterisk/phone system itself. The Cisco phones update in two stages. The bootloader, then the application. Once the bootloader is upgraded, all passwords and networking information on the phone will be wiped out. But what is essential in upgrading these phones is a DHCP server with option 150 enabled – an option to auto-provision the tftp server ip address when the DHCP server hands out the regular ip address to the phone.
Without an auto-provisioned tftp server address, the phone will only complete half the upgrade and come up with an error message of “protocol application invalid.” This just means that the phone could not complete the second half of the upgrade and needs the tftp ip address to be specified. Only problem is since there is no application running, there is no place to specify the address! Thank goodness for DHCP option 150 which does this for us when the phone grabs an IP address after loading the bootloader.
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The 7970 came with an SCCP Firmware initially, so I flashed it to what I believe the 8.3.0.50 SIP Firmware. I don’t have a Cisco Smartnet contract, so I downloaded the 8.3.0.50 Firmware from In the phone Status/Firmware Versions I see the following.
Software Center. Products & Services Support How to Buy Software Download. Step 6 To download the SIP firmware for the Cisco Unified IP Phone, click the Download Now or Add to cart button and follow the prompts: For Cisco Unified CallManager 4.3 and 4.2 (SCCP firmware files only): •.
Changing the firmware on a cisco phone is model specific. We assume you have already downloaded the necessary firmware version. For model specific installation instructions below:
General instructions:
In this section we use the 7960 phone as a template to show how the general firmware installation process on cisco phones works.
Now, there are a few things to consider when upgrading 7940/7960 cisco phones. But the rule of thumb, is that if you have SCCP on your phone youll need to use a XMLDefault.cnf.xml file to specify the firmware load information tag by which the phone can know what load it should install. For the rest of this guide I will just assume you want to convert SCCP to SIP.
The easiest way to get SIP on your phone is to install a universal application bootloader. I've found that SCCP version 8.0.9 (P00308000900) has the most compatible loader which easily allows swapping between current SIP and SCCP loads without a hitch. So the best thing to do is to upgrade your SCCP phone with a newer SCCP load before switching over to SIP. If you have a very old version of SCCP, you will find that you cannot immediately upgrade to this version. If that is the case, just load version 3 (P00303010102), then load to version 5 (P00305000500), then jump to version 8.0.9 (P00308000900). To do this you have to download those firmware versions and just extract them all into one directory. The above mentioned firmware versions are model specific, check below for per model version instructions.
Now download the XMLDefault.cnf.xml file and place this file into your firmware directory. Check if your specific phone model is already in the file (and edit if necessary).After you have downloaded the file, edit the loadInformation tag within the XMLDefault.cnf.xml file with the firmware you want to install on your phone. Do not add the file name extension, just the name of the file (ig. P00308000500). Save and proceed to the next step.
Next plug in the phone by crossover cable or ethernet switch to the computer you are running this server from (make sure you disconnect any device attached to the network which resolves an ip through dhcp, as this will conflict with any other dhcp server on the network).
Power Cycle the phone and clear the configuration by holding down the # key and then plugging in the phone. After all the lights cycle on the phone, release the # key and press 123456789*0# followed with the 2 key (This is called a Factory Reset, Different models can have different factory reset sequences, check below). The lights will turn red, but if they dont, repeat this step. The phone will then wipe the flash and load whatever firmware is specified in the tftp directory – if the phone just keeps downloading the term.defaults file constantly, just do an incremental upgrade to the firmware version that you want).This will clear all settings on the phone and set it to defaults. Upon reboot, the phone will grab an ip address from the dhcp server on the windows machine running the dhcp server. DHCP will also assign an ip address for the tftp server to the phone using option 150, and the phone should start pulling down files from the server after it obtains an ip address.
If you are doing an incremental upgrade to get to version 8.0.9, just keep editing the XMLDefault.cnf.xml file with the next version of firmware and save, then reboot the phone (after it has completed loading both the bootloader and application). The phone should find that it needs to upgrade itself until you stop editing the file with new firmware information.
After the phone gets to SCCP version 8.0.9, all you have to do is just download the version of SIP firmware you want, and then extract it into a seperate directory. Point the TFTP Deamon to use that directory, copy the XMLDefault.cnf.xml file to that directory and edit the loadInformation tag with the POS-xxx filename which is located in that directory and reboot the phone. The phone will automatically switch over to loading the SCCP firmware.The 79×1/79×2/79×5/7970 phones take a bit longer to fully complete the flashing process since they use more numerous and larger files than the 7940/60 series phones. If the phones just sit like they arent doing anything, wait a bit longer and they should come back up. Its not uncommon for one phone to take up to 4-5 minutes to complete the entire process.
Thats all there is to it, and now that the phone has a good universal application bootloader, you will have no trouble switching between SIP and SCCP by just pointing the phone to the appropriate directory.
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6921/6941/6961
7905/7912
7940/7960
See Cisco 7940 & 7960 Series IP Telephone Troubleshooting
7941/7961
Empire total war darthmod download. If you have a 79XX Cisco Phone with SIP Firmware and want to change back to SCCP:
Cisco 7970
- Set up TFTP server and put Firmware Version Cmterm79XX version 8.5.2 This version is what is needed to the go another newer for example SCCP 9.4. If you try to upgrade straight forward to 9.4 without going fist to 8.5.2, upgrade process will fail with: Auth Failed.
- Do a factory reset, powering off the phone. And then power up again, keeping # pressed until led lines start to flash, do 1234567890#. Sometimes dependent on the version is currently installed (SIP or SCCP) these process will fail cause of the boot loader version, so you will have to do a 3491672850#. The led of lines will start blink red. The phone will seem to be powered off, but is erasing the bootloader and still working downloading files from tftp. You have to be patient.!!!! IT IS IMPORTANT NOT TO POWER OF THE PHONE, BECAUSE WILL BE USELESS !!!!!!, this process could take more than 3 minutes in a 79X2 and sometimes 5 minutes on a 79X1 family on my experience.
- Once the 8.5.2 version is loaded and running, you can go ahead to 9.3 or 9.4 version without trouble. To do that, you should replace line SCCP41.9-4-2-1S with the version of firmware, will depend on your phone version and model, on your SEPMAC.cnf.xml file.
Cisco Firmware Download
Notes:Factory Reset: plug the phone in and hold the # key till the extension lights blink amber… 1234567890#Hard Factory Reset: plug the phone in and hold the # key till the extension lights blink amber…then press 3491672850#
79x1/79x2/79x5/797x (Java based)
Notes:Factory Reset: plug the phone in and hold the # key till the extension lights blink amber… 1234567890#Hard Factory Reset: plug the phone in and hold the # key till the extension lights blink amber…then press 3491672850#
Cisco 7942 Firmware Download
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