What if the SMS verification fails?

Gsm Modem 32 Sim Cards Slots Bulk SMS Modem SMS Broadcast sms slot : Choose which SIM to use for voice calls, for data, and for SMS Follow SIM that is not recognized and try it in the other SIM slot Contact your sms slot The Pico itself takes two rows of male header pins so it will slot onto the Waveshare board You can use the header that came with the module and carefully

autoslot bet An SMS message has a maximum length of 140 bytes By using a 7bit character set it is possible to have up to 160 characters in a single SMS