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What errors can occur in a softphone and why

Publication date: 09.06.2022

Sometimes users of SIP clients see certain errors when registering an account. At this stage, you can independently analyze the problem by the type of error that occurred in order to simplify the diagnosis for the technical support service and suggest possible causes of the problem yourself. We will point here the most popular SIP error values that you may encounter when working with telephony.

 

What errors can occur in a softphone and why

The most common error is 403. Some softphones have a short explanation in English attached to the number, with 403 it is most often “Forbidden”, “Wrong Guess” and “User Disabled”. If you observe such a problem, then the login or password was entered incorrectly in the account settings. Go to the “Users” tab in your personal account and copy your line number and password to it (to do this, click the bottom “Settings” button). In the latest versions of some clients, such as Microsip, the error is written in a more user-friendly language.

 

What errors can occur in a softphone and why

 

Also in Microsip you could observe a similar situation:

 

What errors can occur in a softphone and why

 

This error occurs if a microphone is not connected to the device, or the headset does not have access to the application. On Windows 10, you can allow access in the microphone privacy settings.

 

If you’re using Zoiper as your calling app, then you’ve probably encountered this issue:

 

What errors can occur in a softphone and why

 

In order to fix the error, you need to go to advanced settings, i.e. press the “Advanced” button at the top:

 

What errors can occur in a softphone and why

 

What errors can occur in a softphone and why

Then scroll down to the “Use STUN” field and select the “Don`t use STUN” option.

After that, click the “Register” button.

 

What errors can occur in a softphone and why

If the registration still fails, then select the “Use custom STUN” option and in the “STUN server” field enter: stun2.l.google.com:19302, then register the account again.

 

What errors can occur in a softphone and why

 

Sometimes a 408 Request Timeout error occurs in softphone. In this case, the reason is most likely an Internet connection and for detailed diagnostics, it is better to contact the UniTalk technical support service.

If the above instructions did not solve your problem, then you should also contact us, we will be happy to help you fix any problems with telephony.