Phone Configuration and Troubleshooting
DO NOT do this unless you have specifically been advised to. This will render your phone inoperable until the reconfiguration is completed. This is NOT a ...
Tue, Sep 4, 2018 at 3:58 PM
If a user locks the phone via the keypad menu, there is no way to unlock it except to factory reset it. You should try some obvious possible numbers such a...
Tue, Nov 27, 2018 at 3:11 PM
Symptoms: On a late-model Grandstream phone the status light is red, you cannot make or receive calls, and the display says "Account not registered.&q...
Thu, Sep 2, 2021 at 10:46 AM
Your phones require a reliable and consistent internet connection for calls. If you often have calls where the sound breaks up or sounds bad, there is most...
Mon, Jun 14, 2021 at 10:58 AM
DO NOT do this unless you have specifically been advised to. This might render your phone inoperable. This is NOT a normal basic troubleshooting step. We...
Thu, Jun 13, 2019 at 2:57 PM
Symptoms: The phone display says "LAN down" or "network not found" or similar messages. This indicates that the phone can't can...
Mon, Jun 1, 2020 at 5:11 PM
DO NOT do this unless you have specifically been advised to. This will render your phone inoperable until the reconfiguration is completed. This is NOT a ...
Mon, Jul 13, 2020 at 11:07 AM
First, reboot the phone, and run the app manually. Make sure you can make calls, then test incoming calls. If the phone fails to ring for incoming call...
Mon, Mar 7, 2022 at 1:32 PM
Factory reset and set up a Yelling phone on 3CX DO NOT do this unless you have specifically been advised to. This will render your phone inoperable...
Fri, Sep 9, 2022 at 1:10 PM