topic Re: SIM card and a GSM modem for Raspberry Pi in Get Support

SIM card and a GSM modem for Raspberry Pi

daddyfix — Tue, 04 Jan 2022 19:51:00 GMT

Do the PM SIM cards work with GSM modems? I am trying to register on the network with a PM SIM i have inserted in multiple GSM Modems for Raspberry Pi but the never register.

thanks

Re: SIM card and a GSM modem for Raspberry Pi

will13am — Wed, 01 Nov 2017 12:51:17 GMT

I guess the answer is it doesn't work. This could be due to band compatibility. I take it this GSM modem has all the requisite bands for 3G or LTE connectivity. Perhaps @sheytoon our resident expert in this area can weigh in here.

Re: SIM card and a GSM modem for Raspberry Pi

daddyfix — Wed, 01 Nov 2017 15:17:48 GMT

Thank you that would be great if I could get some help on this.

I have tried to use my personal Cell Phone SIM but its Telus.... Still doesnt register.

So Im thinking that maybe it the SIM and Hardware that won't allow me to register on the network.

Im using the Band 850 on the GSM or should I use the 9600?

Re: SIM card and a GSM modem for Raspberry Pi

will13am — Wed, 01 Nov 2017 15:56:49 GMT

@daddyfix wrote:
Thank you that would be great if I could get some help on this.

I have tried to use my personal Cell Phone SIM but its Telus.... Still doesnt register.

So Im thinking that maybe it the SIM and Hardware that won't allow me to register on the network.

Im using the Band 850 on the GSM or should I use the 9600?

The 3G bands should be 850 and 1900 Mhz.

Re: SIM card and a GSM modem for Raspberry Pi

sheytoon — Wed, 01 Nov 2017 18:38:54 GMT

@daddyfix

When you say GSM, are you truly using a 2G GSM device? Public Mobile / Telus do not have such a network on any frequency. Only Rogers does.

For 3G (UMTS / W-CDMA / HSPA), you would need 850 MHz and 1900 MHz.

Re: SIM card and a GSM modem for Raspberry Pi

daddyfix — Thu, 02 Nov 2017 15:43:23 GMT

Thanks. I think I will try another device or change providers which support 2G