3cx app issues

[Song]

Hi,

We have a hosted 3cx in the cloud and a SBC at our local location. All the phone are working fine. But We are having some issues with the voice. It seem like it is a one way audio or something. So this only happen on remote user with 3cx app from their iphone. When you call the main number and it ring to them, they can hear their iphone 3cx app ringing and when they pick up they cannot hear the other caller.

Any reason for this or any setting we need to adjust?

thank you

 

[Song]

I'm assuming maybe the user with his 3cx app is connected to his home wifi. and the home wifi is having issues. that is why the sound quality is going in and out?

 

[NicholasP_3CX]

Have the user try it on their 4/5G connection. this would pin point if the problem is actually their wifi.