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How to Use Custom Template to Upgrade SIP Firmware for Cisco IP Phone?

Written By Yeastar Technical Channel on Tuesday, Oct 10, 2023 | 04:41 AM

 
At first, please check how to get the SIP firmware from Cisco website see this video: https://youtu.be/-hzNvmWP-68 And this video applies to Yeastar P-Series Appliance and Software edition.

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