Converting Cisco IP Phones to Microsoft Teams Using MPP/3PCC and SIP Gateway If you are converting legacy Cisco 7800 or 8800 series phones for a Microsoft Teams environment, this is something new i learn today. Part of the process we need to identify the model of the phone/s (list of models) and purchase the specific MPP/3PCC conversion PAK license. Make sure you get the 8800 series pack for 8800 models and the 7800 pack for 7800 models to avoid license authorization errors. Upload CSV or Manually each MAC address. Next, download the resulting .lic file, or the ZIP file if you are doing bulk work, from the Cisco Software Central portal. Once you have the licenses, upload them to the Cisco Cloud Upgrader tool at cloudupdater.webex.com This maps the licenses to your devices via MAC address. If your phones are connected to a Cisco Call Manager, you can use the Bulk Administration Tool to process the phones. After that, the phone will be perform few upgrad...