A short video of how it works with the Swisscom SIM

https://youtu.be/y_9cCOWCiCQ where you see that you are connected but when you try to send a photo the connection is interrupted. This with the manufacturer’s SUPERSIM does not

Since swisscom 2 level support told me that the problem was the fact that I was using a “multidevice” SIM. Today I did further tests with different SIMs:

- SIM Business Data –> Detects a 3G signal (Area where 5G is full) and it doesn’t work

- Yallo prepaid SIM –> Detects an H+ signal and works

- Supersim SIM (from the camera supplier, this is an international data SIM) –> Detects an H+ signal and works.

- swisscom multidevice SIM –> 3G signal and it doesn’t work

- Swisscom voice SIM –> 3G signal and it doesn’t work.

APN settings: gprs.swisscom.ch

What could it be?

Yes I know, I don’t want to send MMS…. Only email via LTE however works with all operators except Swisscom. Today at the Swisscom shop I showed the problem and they say that perhaps the camera works on channels (LTE frequencies) that are used only by other providers.

Tried it, it doesn’t work. Not even with a non-“multidevice” SIM…other operators does it work

Does not work with MMS, must work with LTE 3G/4G through email. MMS was deactivated at the end of 2022.