I have a FP3 with two SIM cards. I had it set to “always ask” to determine which should be used for outgoing calls. But for incoming calls I would normally expect that when I receive a call that it would be taken on the SIM card corresponding to the number that was called. This does not appear to be the case though and it seems to randomly switch between the SIMs for incoming calls, resulting in expensive international calls. There also appears to be no option to choose the SIM when receiving calls (although I would expect for calls to be taken on the number they come in on).
Is there a way to ensure that the SIM card corresponding to the number called is used for incoming calls? Or is it normal behavior for it to randomly transfer calls to the other SIM for no apparent reason?
No, I definitely do not have them forwarding to each other unless the phone somehow does that by default. The operators should also have no record of the other number - at least not from me.
It is only incoming calls. I am being charged for roaming because the calls are inexplicably going to a number other than the one called (as explained). For outgoing calls I am prompted for the SIM to call from and that works correctly.
Also note that it happens inconsistently. Most of the time it goes to the correct SIM but it goes to the wrong one often enough that it is clearly noticeable.
Could you elaborate on your setup a bit? Where do you live, why the U.S./UK SIM split? What are you using the two different cards for, is it necessary to have both active all the time?
That, and also I’d like to know to which number people are calling when the call appears on the ‘wrong’ SIM. Does this happen for one number or for both?
@anon22363348
Well, I guess, it’s only the technical stuff, that is relevant.
Personal motives don’t have to be presented.
Could special circumstances be relevant, maybe, that the card, that is being called has no reception, or are you running a certain app, when this happens?
I guess, everything you can share could be important and helpful for the techies in this forum.
Just to reply- I’m absolutely sure no one is calling the second SIM number in these cases. People have one or the other number, not both.
Both SIMs seem to have reception when calls are redirected. I doubt a certain app is running when this happens because very few apps are on the phone.
I’m aware that Fairphone isn’t officially compatible with Fi, but it has never been an issue. I didn’t even have the Fi app on the phone in question or Google account logged in, so it likely isn’t an issue with something odd happening there. I have never seen calls redirect like this in the past and Google should have no record of the other number either (aside from any gained by both SIMs being used on same phone with no Google account logged in).