Zoom 4575 - Receiving and Managing SMS

+CMGS 00
OK
Where 00 is the message reference number.
Creating a PDU can be complicated. Fortunately there are online convertors that can
help you create the PDU.
http://smstools3.kekekasvi.com/topic.php?id=288 and
http://rednaxela.net/pdu.php
are good examples of the tools available online to help you
create a PDU
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Receiving an SMS Message
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Before you receive an SMS message, you need to decide how you want to be notified
when an incoming text message arrives. This is done using the AT+CNMI command. If
you do not want the modem to pass a message to your application, enter
AT+CNMI=0,0
When using this setting, the modem does not report incoming texts to your application.
You can enter AT+CMGL to check to see if the modem has any unread texts.
If you want the modem to notify you of an incoming text, use the AT+CMNI=2,1
command. When the modem receives a text, it will notify your application with the
+CMTI: SM, <index> result code, where SM stands for SIM and <index> is the location
in the SIM memory. For example:
+CMTI: “SM”, 3
Tells you that the modem just received a text and it’s stored on the SIM card in location
3. To read this message you use the AT+CMGR command. For example, to read the
message in the example above, enter:
AT+CMGR=3
The modem will respond with the SMS message that was just received and stored in
location 3. For more information about these commands, please refer to the Huawei AT
Command manual available at www.zoomtel.com/4575support
.
If the message was sent in PDU format, it will appear as a series of hex numbers that
you will need to decode. There are several online sites that will help you decode the
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