USR-GPRS232-DTU USR MANUAL
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Jinan USR IOT Technology Limited
5.5 SMS passthrough mode
SMS module works in transparent mode, you can set a number for information purposes, and the number of the
SMS content delivery set, the module receives data from the serial number and sent for information purposes, the
purpose of receiving information from the information sent through the serial numbers and to the user equipment to
achieve stable transmission of small amounts of data between user devices, generally applicable to the short message
control, data, alarm and other occasions.
In transparent mode SMS, send and receive SMS in the format of English characters and numeric characters, does
not support Chinese; in accordance with the content of messages received via the serial port passthrough reception
format, do not do format conversion.
Under SMS passthrough mode supports setting a target number, the module only receives messages from the
destination number, and only send text messages to the destination number, set the command to "AT + CIPNUM =
PHNUM <CR> <LF>", which indicates that the destination number PNUM .