ip phone firmware

  1. V20 - Yealink IP phones' firmware not upgrading

    I'm having this issue with a 3CX recently upgraded from V18 to V20 update 2 (installed on-premises): - Dashboard shows 'unsupported phones' - On the Users' page, those phones are indicating '(Upgrade)' - Clicking on that Upgrade issues a (regular) warning about the phone disconnecting - Pressing...
    • Dominique_CH
    • Thread
    • firmware upgrade ip phone firmware v20
    • Replies: 13
    • Forum: Yealink
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