Tracing

The audio quality can easily be monitored in a Yealink device. If your customer experience audio issues, you can activate the monitoring on a Yealink device. Please follow the steps below: - Login into you Yealink device - Go to "Settings" in the top-menu - Go to "Voice monitoring" and set the following options: (https://s3.amazonaws.com/cdn.freshdesk.com/data/helpdesk/attachments/production/9089908053/original/cUF73d0-th3mA6nEFcViMEvudBzDz-Jbuw.png?1573487361) Now press ...

In a trace of a call sporadic 401 Unauthorized SIP responses can be observed during call setup. This does not point to a problem, it is normal registration behavior. 401 Unauthorized response is the part of Registration authorization process. Due to security reasons our server requires authorization for each registration attempt. A standard Registration authorization process is the following. - The device starts the process of registration by sending a request Register without crede...

If you made a trace from your device, then you need to open this file in a special application. The most used application is 'Wireshark'. You can download this free software here: https://www.wireshark.org/#download How to check the SIP Signalling of a call? - Open the file in Wireshark - Go to 'Telephony' and click 'VoIP calls' (https://s3.amazonaws.com/cdn.freshdesk.com/data/helpdesk/attachments/production/9089671159/original/zevUbnWk5J5ywHZDTSt6w0wBGAFX9DcxtA.png?...

In order to capture issues on a device, it is possible to start a trace directly from the Yealink device itself. Traces from made from the device itself shows in many cases more detailed information about the possible causes then when a trace is made from the Kwebbl servers. There are two different traces: - Normal: capture all SIP Signalling from the device - Exchanged: capture all SIP Signalling and audio from the device After the trace is performed, the file can be opened i...