Hot Issue & FAQ
Here we would discuss the hot issues occur in the recent time or recent firmware release.
- ★ Fanvil IP Phone Shows "Upgrade Failed!" Periodically
- ★ Received Test Mail from PBX Periodically after PBX upgraded to version X.13.0.30
- ★ Fanvil Video Phone Call Hangup Immediately when Answered after PBX Upgraded to X.13.0.30
- ★ Fanvil IP Phone Shows Internal Error after Provisioning by PBX Version X.13.0.30
- ★ Forwarding Call or Mobility Extension Has No Voice after Upgrade
- ★ Why No App Shown in the App Center?
- ★ No Audio or One Way Audio after Transfer or Forwarding
- ★ Abnormal Web Page Displays after Firmware Upgrade
- ★ TG and TA Upgrade Important Note
- Sectigo's USERTrust RSA CA is not accepted by Yealink Phones in V84 and below versions
- API Hot Issues & FAQ
- Fax to PDF 0 byte after Upgrade to Version X.13.0.30
- FAQ in March 2020
- How to Recover TGv2 Device if I Upload Mismatch Firmware?
- Fail to Login the PBX Web Interface
- Failed to Call Inbound to S-Series PBX through SIP Trunk When Caller is Anonymous
- Remove BLF Seize Line Prompt
- Cellular Module Is not Compatible with G.722 Codec
- How to Reset Web Login Password for S-Series and K2
- Abnormal Call Recording File Names of S-Series VoIP PBX - Special Character * in Called numbers
- Extension Forwarding Setting Caution
- Incoming Call Delay by API Answer Control of Trunk
- FAQ in August 2019
- QueueMetrics Technical Support Change
- Callback Failure when using SIP Trunk on S-Series
- FAQ in May 2019
- Why I get error "500 Server Internal Error" when I try to login the web interface?
- FAQ in April 2019
- Firmware or System Prompt Upgrade Failure of U-Series & Gateways
- Web Login Password Recovery Suggestion
- ★ Fanvil IP Phone Shows "Upgrade Failed!" Periodically
- ★ Received Test Mail from PBX Periodically after PBX upgraded to version X.13.0.30
- ★ Fanvil Video Phone Call Hangup Immediately when Answered after PBX Upgraded to X.13.0.30
- ★ Fanvil IP Phone Shows Internal Error after Provisioning by PBX Version X.13.0.30
- ★ Forwarding Call or Mobility Extension Has No Voice after Upgrade
- ★ Why No App Shown in the App Center?
- ★ No Audio or One Way Audio after Transfer or Forwarding
- ★ Abnormal Web Page Displays after Firmware Upgrade
- ★ TG and TA Upgrade Important Note
- Sectigo's USERTrust RSA CA is not accepted by Yealink Phones in V84 and below versions
- API Hot Issues & FAQ
- Fax to PDF 0 byte after Upgrade to Version X.13.0.30
- FAQ in March 2020
- How to Recover TGv2 Device if I Upload Mismatch Firmware?
- Fail to Login the PBX Web Interface
- Failed to Call Inbound to S-Series PBX through SIP Trunk When Caller is Anonymous
- Remove BLF Seize Line Prompt
- Cellular Module Is not Compatible with G.722 Codec
- How to Reset Web Login Password for S-Series and K2
- Abnormal Call Recording File Names of S-Series VoIP PBX - Special Character * in Called numbers
- Extension Forwarding Setting Caution
- Incoming Call Delay by API Answer Control of Trunk
- FAQ in August 2019
- QueueMetrics Technical Support Change
- Callback Failure when using SIP Trunk on S-Series
- FAQ in May 2019
- Why I get error "500 Server Internal Error" when I try to login the web interface?
- FAQ in April 2019
- Firmware or System Prompt Upgrade Failure of U-Series & Gateways
- Web Login Password Recovery Suggestion