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  1. Yealink firmware upgrade issue

    Hello! I'm 3cx free trial tester. I have some voip phones Yealink T21P E2. I upgraded firmware on one phone to 52.83.0.55 (this is firmware from 3cx site. It's compatible with 3cx pbx). On Yealink official site i saw that 52.84.0.10 available. I tried to upgrade it. Upgrade process failed. I...
    • nickdsl
    • Thread
    • downgrade firmware upgrade yealink
    • Replies: 0
    • Forum: Server
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