Outbound call on apps not working

Question

I activated a new phone line yesterday (I'm the Zoom account owner), made the full configuration as required, but when I try to make a call via the mobile app or via my desktop app, I get a message saying “it is impossible to make the call, please try again later”. I would like to point out that all my software's are in up-to-date versions and that all my devices have the required configurations for Zoom IP calls.

Do any of you have this problem?

Eliot · Answer

hi sebbp,

In one case, I forgot to assign the new user a zoom phone license and calling plan (package). The new user could not call out.

Please make a test call to zoom. This will check your setup.

How to make a test phone call

Download the Zoom desktop client or mobile app.

Sign in to the application.

Click or tap the Phone tab .

Dial and call *8378.

Speak into your mic.

Zoom Phone will automatically play back the audio. If you don't hear audio being played back, there could be issues with your connection, audio device, or desk phone.

https://support.zoom.com/hc/en/getting-started-with-phone?id=zoom_phone_guide

if you have not already done so, assign the zoom phone license and calling plan (package) to the new user extension.

this might be firewall issues. Make sure the required ports are open.

Zoom network firewall or proxy server settings

https://support.zoom.com/hc/en/article?id=zm_kb&sysparm_article=KB0060548

you can also test with

Simulating VoIP calls using the network tool

https://support.zoom.com/hc/en/article?id=zm_kb&sysparm_article=KB0058935

Zoom Network Connectivity Tool

https://support.zoom.com/hc/en/article?id=zm_kb&sysparm_article=KB0058114

Did my response answer your question? If so, please don't forget to mark the reply as an accepted solution.

thanks, eliot