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Introduction
In order to upgrade from sip8331.9-3-3-5 to sip8831.10-3-1 you need to use a special interim firmware.
It is very important you use the appropriate region when uploading the firmware. Once a phone has been upgraded to a particular region it will be locked to that region and will require RMA if you want to change the region.
Problem
The documentation for this procedure is a little confusing so I wrote the solution below.
Solution
Documentation states that you need the latest device pack to do this upgrade; however, that is not true. If the 8831 device is on your cluster already, you don't need to install a device pack (which could potentially impact firmware for several devices).
Below is a screenshot from the web page of an 8831 I used when writing this document.
Put the latest firmware on the server (when I wrote this document it was cmterm-8831-sip.10-3-1-16.cop.sgn or cmterm-8831-sip.10-3-1-16XX.cop.sgn) - "Before using Cisco Unified IP Phone Firmware Release 10.3(1) with Cisco Unified Communications Manager, you must install the latest firmware on all Cisco Unified Communications Manager servers in the cluster." The file I uploaded is cmterm-8831-sip.10-3-1-16NA.cop.
NOTE: Be sure to use the proper region specific cop file. The table below is for ease of use; however, official Cisco documentation takes precedence if there is a discrepancy.
This table was generated from the values set when using the "Wireless Microphone Region" setting on the device configuration page in CUCM. When selecting a country, the phone's configuration file is updated for NA, JP, EU, TW, LA, BR, or NOT_ALLOW.
Country Value
| Algeria | EU |
| Argentina | NA |
| Australia | EU |
| Austria | EU |
| Bahrain | EU |
| Belgium | EU |
| Brazil | NA |
| Bulgaria | EU |
| Canada | NA |
| Chile | NA |
| China | NOT_ALLOW |
| Colombia | NA |
| Croatia | EU |
| Cyprus | EU |
| Czech_Republic | EU |
| Denmark | EU |
| Egypt | EU |
| Estonia | EU |
| Finland | EU |
| France | EU |
| Germany | EU |
| Ghana | EU |
| Greece | EU |
| Hong_Kong | EU |
| Hungary | EU |
| Iceland | EU |
| India | EU |
| Indonesia | EU |
| Iraq | EU |
| Ireland | EU |
| Israel | EU |
| Italy | EU |
| Japan | JAPAN |
| Jordan | EU |
| Kenya | EU |
| Korea_Republic | NA |
| Kuwait | EU |
| Latvia | EU |
| Lebanon | EU |
| Lithuania | EU |
| Luxembourg | EU |
| Malaysia | EU |
| Mauritania | EU |
| Mexico | NA |
| Morocco | NA |
| Nepal | EU |
| Netherlands | EU |
| New_Zealand | EU |
| Nigeria | EU |
| Norway | EU |
| Oman | EU |
| Pakistan | EU |
| Panama | NA |
| Peru | NA |
| Philippines | NOT_ALLOW |
| Poland | EU |
| Portugal | EU |
| Qatar | EU |
| Republic_of_Montenegro | EU |
| Republic_of_Serbia | EU |
| Romania | EU |
| Russian_Federation | EU |
| Saudi_Arabia | EU |
| Singapore | EU |
| Slovakia | EU |
| Slovenia | EU |
| South_Africa | EU |
| Spain | EU |
| Sudan | EU |
| Sweden | EU |
| Switzerland | EU |
| Taiwan | TAIWAN |
| Thailand | EU |
| Tunisia | EU |
| Turkey | EU |
| United_Arab_Emirates | EU |
| United_Kingdom | EU |
| United_States | NA |
| Venezuela | NOT_ALLOW |
| Vietnam | EU |
| Yemen | EU |
| Zimbabwe | EU |
I uploaded the file cmterm-8831-sip.9-3-3-TO-10-3-1-v2.cop.sgn to only the TFTP servers because the documentation says it should be "copied to the appropriate directory on the TFTP server."
Now you would restart the TFTP service on all nodes running the service.
I confirmed "sip8831.9-3-3-TO-10-3-1-v2" was listed as the default load for the 8831 phones.
I reset the phone and when it registered again I went to device > device settings > firmware load information to confirm there weren't any phones using a firmware other than the default. I also went to the phone web page to confirm the new firmware.
NOTE: This firmware upgrade went very fast.
NOTE: The interim file's purpose is to bypass a bug that doesn't allow upgrades from 9-3-3 to 10-3-1 so there shouldn't be any concern about functionality. The interim firmware is meant to help hop to 10-3-1. You can read about the bug here:
CSCur37664
I then changed the default load to "sip8831.10-3-1-16NA" and reset the phone again so it could update the firmware again. The final result is documented in the image below.
NOTE: You may have a firmware that is not specific to any particular region of the world and you would need to have "sip8831.10-3-1-16" as the default load. If you do have a region specific firmware that is other than North America, please be sure to have the correct region in the XX portion here: "sip8831.10-3-1-16XX".
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Please rate helpful content (i.e. videos, documents, comments). Also, please select the correct answer(s) if any comment(s) answer your question otherwise the questions remains on the support forums as unanswered.
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