HUAWEI MG323 GSM M2M Module
AT Command Interface Specification Commands for Internet Services
Issue 02 (2010-11-23) Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd. 152
Write 20 characters.
Precondition: The service has been established and successfully enabled.
AT^SISW=0,20
^SISW: 0,20,20 The unsolicitedly reported information, which
prompts the user to enter 20 characters.
<The user enters 20 characters here>
OK
10.8 AT^SISR - Command for Internet Services to Read Data
The AT^S ISR command reads data out from the service buffer.

10.8.1 Checking Whether the AT^SISR Command Is Available

Test
command
AT^SISR=?
Function Checks whether this command is available.
Response z In case of available command: <CR><LF>OK<CR><LF>
z In case of unavailable command: <CR><LF>ERROR<CR><LF>
z In case of an error related to the MT: <CR><LF>CME ERROR:
<err><CR><LF>