XBee3 4G - Phone number of most recent SMS message received

XBee & XBee Gateway
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1

I feel like I’m missing something extremely simple, here.

I’m using an XBee3 4G to send and receive low level commands to a custom circuit board, which is essentially an Arduino running the TinyGSM library. It can send SMS messages using the P# command. No problems there. It can also receive texts using a stream read command: if there is data available, take it in.

For some reason it reads the SMS body well, but I can’t figure out how to get it to spit out the phone number that the SMS (or perhaps the last SMS received) is from.

I know there are a lot of variables here that make it hard for much debugging help, but google has led me to the same unanswered forum posts or info for other brand 4G boards.

2

For what it’s worth, it seems like switching to API mode 1 instead of 0 spits out both the sent phone number as well as the body. Now I just have to be clever about separating the two and parsing appropriately. And switching back to API mode 0 to send a text since the library I’m using to send requires that.

3

Why wouldn’t you just stay with the API mode? You can use API mode command 1F to send a SMS.
https://www.digi.com/resources/documentation/Digidocs/90002258/#reference/r_frame_0x1f.htm?TocPath=API%2520frames%257C_____3

4

Simply due to the fact that the off-the-shelf library I snagged is set up to send SMS in API 0, as far as I can tell. But you’re absolutely right, and teaching myself all of this makes me want to just ditch that library and roll my own sending code.