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Lee Lup Yuen 2023-04-27 14:49:04 +08:00
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@ -7244,32 +7244,21 @@ Comes from the [Unicode UTF-16 Encoding](https://en.wikipedia.org/wiki/UTF-16) o
_Why send SMS in PDU Mode instead of Text Mode?_
- TODO: More reliable (304 Invalid PDU)
Sending SMS Messages in Text Mode looks easier. But we should use PDU Mode instead. Here's why...
- TODO: UTF-16 Encoding
- TODO: Receive messages
TODO PDU Mode works more reliably (304 Invalid PDU)
```text
// Select Message Service 3GPP TS 23.040 and 3GPP TS 23.041
AT+CSMS=1
+CSMS: 1,1,1
OK
// Set SMS Event Reporting Configuration
AT+CNMI=1,2,0,0,0
OK
// Message is dumped directly when an SMS is received
+CMT: "+8615021012496",,"13/03/18,17:07:21+32",145,4,0,0,"+8613800551500",145,28
This is a test from Quectel.
// Send ACK to the network
AT+CNMA
OK
// Text Mode: How many characters in this SMS?
AT+CMGS="yourphonenumber"
```
[(EG25-G AT Commands, Page 167)](https://wiki.pine64.org/wiki/File:Quectel_EC2x%26EG9x%26EG2x-G%26EM05_Series_AT_Commands_Manual_V2.0.pdf)
TODO
```text
// PDU Mode: 41 bytes in this SMS (excluding SMSC)
AT+CMGS=41
```
# Compile NuttX on Android with Termux