Troubleshooting

Troubleshooting guides for IP Phone users on the Office Plan

9 articles

IP Phone Time Is IncorrectLearn how to fix the incorrect time on your Unitel Voice Yealink IP phone. Update your employee extension time zone, restart your desk phone, and troubleshoot clock or time display…
What Is DND (Do Not Disturb) on My IP Phone?Learn how to turn Do Not Disturb (DND) on or off on your Unitel Voice Yealink IP phone. Find out why your desk phone isn't ringing, how DND affects incoming…
Troubleshooting: Connecting Your New IP PhoneTroubleshoot your Unitel Voice Yealink IP phone setup. Learn how to connect T57W, T34W, and W70B/W73H devices, check Ethernet and power connections, fix registration issues, and get your Office Plan…
Troubleshooting: IP Phone Will Not Power OnFix a Yealink IP phone that won't power on or has a blank screen. Troubleshoot power adapters, PoE connections, Ethernet cables, and charging issues for Unitel Voice T57W, T34W, and…
Troubleshooting: IP Phone Is Not Online or RegisteredTroubleshoot a Yealink IP phone that is offline or not registered with Unitel Voice. Fix network, Ethernet, router, and registration issues on T57W, T34W, and W70B/W73H phones.
Troubleshooting: Poor Call Quality on Your IP PhoneFix poor call quality on Unitel Voice Yealink IP phones. Troubleshoot choppy audio, dropped calls, echo, delays, Wi-Fi interference, network congestion, and VoIP issues on T57W, T34W, and W70B/W73H devices.
Troubleshooting: Unable to Make Outbound Calls from Your IP PhoneTroubleshoot outbound calling problems on Unitel Voice Yealink IP phones. Fix dialing errors, registration issues, failed calls, and problems making calls from T57W, T34W, and W70B/W73H devices.
Troubleshooting: Incoming Calls Are Not Ringing on My IP Phone
Troubleshooting: Router and Firewall Settings for IP PhonesTroubleshoot router and firewall issues affecting Unitel Voice Yealink IP phones. Learn about SIP ALG, blocked VoIP traffic, network restrictions, registration failures, one-way audio, and dropped calls.