Short message service
This downlink message carries the payload of SMS.
| Byte 0 | Byte 1 | Byte 2-4 | variable |
|---|---|---|---|
| Type | ACK Token | SID | Message (ASCII) |
- Type: 0x0D
- ACK Token: Acknowledge token. Refer the section Acknowledge token for more details
- SID: Sender identifier
- Message: SMS message