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Cellular connection process
1. Sockets are closed, cleanly if possible.
2. The cellular connection is shut down.
3. The cellular component is powered off.
Note
We recommend entering Airplane mode before resetting or rebooting the device to allow the
cellular module to detach from the network.
SMS encoding
The XBee Smart Modem transmits SMS messages using the standard
Because this character set only provides 7 bits of space per character, the XBee Smart Modem
ignores the most significant bit of each octet in an SMS transmission payload.
The device converts incoming SMS messages to ASCII. Characters that cannot be represented in
ASCII are replaced with a space (' ', or 0x20 in hex). This includes emoji and other special characters.
1
Also referred to as the GSM 7-bit alphabet.
Digi XBee3 Cellular LTE Cat 1 Smart Modem User Guide
SMS encoding
1
GSM 03.38
character set.
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