Have Signal But Can’t Make Or Receive Calls

have go in 3G MODE FOR VOICE

It is highly recommended that GO remains in 3G Mode so that voice calls are always supported.

Some phones and network towers do not support voice calls over 4G (VoLTE).

If you are only boosting 4G and attempt to make a VoLTE call in an area that does not support it, your call will fail if 3G fallback is not available.

The solution is to switch the GO to boost 3G so the phone call can go out over the 3G network.