We finally got the Waveshare SIM7070G set up to send and receive texts, except for a friend who lives further north. We were thinking that maybe it’s because it was being sent from the long default phone number, so we bought a $1/month phone number. I was able to send a text to the new phone number, but it is no longer able to send texts without errors (via AT command tester. See commands below). Does the phone number just need time to “activate” or something?
Checking registration status…
AT+CREG?
+CREG: 0,5
OK
Device is registered and is roaming.
AT+CGREG?
+CGREG: 0,5
OK
Device is registered and is roaming.
Checking SMS Mode…
AT+CMGF?
+CMGF: 1
OK
SMS message for is configured for Text mode
Device is configured for Text mode for SMS.
Encoding set for 7-bit
AT+CSMP=17,167,2,0
OK
Setting Character Set to GSM
AT+CSCS=“GSM”
OK
AT+CMGS="+1414XXXXXXX"
Test Message
+CMS ERROR: 500