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  1. V16 - failed to establish a TCP connection to activate.3cx.com

    Hi all, We just succesfully renewed our license in 3cx portal but cannot be synchronized by our 3cx system, which still show expire date is 31/12/2022. We suspect the reason is the system is still on the old v16 system, which makes system cannot communicate with activate.3cx.com. Most...
  2. Android APP - Receving missing call but not ring

    my phone is samsung s21 ultra with android 11, but google play shows the version is still 16.7.8. You also check it on https://play.google.com/store/apps/details?id=com.tcx.sipphone14.
  3. Android APP - Receving missing call but not ring

    Thanks, the 3cx APP client use is 16.7.8, which is the latest version in google play. However, the "keep active mode" is only available after 3cx andriod app v18. Can you advise how client can download this version of app? thanks
  4. Android APP - Receving missing call but not ring

    We recently upgrade 3cx to latest 18.0.237. Mutiple clients then complains their android APP could not be ring randemly, but just directly get miss call even they keep the APP running on the phone. On the 3cx dashboard, i find the following error log: Failed to send FCM PUSH to device HUAWEI...