- Joined
- Jan 4, 2019
- Messages
- 14,530
- Reaction score
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Ok if you face specific issues you will have to tell me the following again please:
- 3CX Version, e.g. Standard Annual 16.0.2.910
- Server OS, e.g. Debian 9 / Windows 10 Server 2012 R2 / Raspberry Pi
- Is the 3CX Server Hosted and where?
- Yealink Base Model and Firmware version
- Yealink Handset Model and Firmware version
- Provisioning Method: Local / VPN / STUN / SBC
- Trunk Provider or Gateway Make/Model
- Has the Firewall Checker passed: YES / NO
- Are custom Phone Templates being used: YES / NO