White traingle on top of screen with exclamation mark

[Cmarti87]

I'm in America, and I have a roaming pass. But I can only text, not call. I have a basic 4g Nokia and there is a white triangle on the top left of the screen. I have a sim-only plan and don't use any data. EE says I can use my usual plan but I can't make calls, only send texts. Any help would be amazing!

[Leanne_T]

Hi @Cmarti87 

I am sorry to hear this. 

Could you try your SIM card in your friends phone to see if you can make calls?

Leanne.

[bristolian]

The swap of SIM will prove what I suspect here, this is a device-issue.

The US networks require a phone to support VoLTE, which is the technical standard behind 4G-calling. I suspect you are in a location where there is no 2G or 3G coverage, and only a 4G service is available. The Nokia 105 is connected to that 4G network, evidenced by text messages working.

But the phone needs to support 4G-voice-calling for you to make or receive calls. A quick search of the Nokia spec sheet confirms this phone has VoLTE-support, but clearly your symptoms are suggesting there is something awry.