Multi-Tech Systems CDMA Wireless Modem - Manual (Page 174)

Chapter 22 - Verizon® Specific AT Commands
Multi-Tech Systems, Inc. CDMA Wireless AT Commands - PN S000294C 174
C
HAPTER
22 - V
ERIZON
®
S
PECIFIC
AT C
OMMANDS
This chapter details AT commands that are Verizon® specific. The detail presented in this chapter should
replace the referenced section in the main document.
SMS Status Report Indication Directly Displayed +CDS
(Chapter 3)
Description: This response indicates an SMS status report has been received and according to the
message storage preferences (+CNMI), is to be directly displayed. +CDS is also used in the
data compression functionality as an active command. Refer to Chapter 17 for an
explanation of +CDS usage for data compression.
For Verizon®, the +CDS response has a secondary format that is used to indicate that a
SMS message was delivered to the recipient (SMS message delivery ACK on). This form of
the +CDS message is not stored in NV memory. In the case of delivery acknowledgement,
the +CNMI setting will not have an effect and delivery acknowledgements will always be
reported with the +CDS response.
Values:
: Message type indicator
0 - Status report
1 – MO delivery acknowledge message
: Message Reference
: Recipient Address
: Type-of-Address of
: Service Center Time Stamp in string format : “yy/MM/dd,hh :mm :ss±zz”
(Year/Month/Day,Hour:Min:Seconds±TimeZone)
Syntax: Response Syntax: +CDS: , , [], [], ,
Example Result
+CDS: 0, 2, 116, ”3146290800”, 129, “98/10/01,12 :30 :07+04”, “98/10/01 12 :30 :08+04”, 0
Note: SMS status report received
+CDS: 1, 3, "03/09/11,14 :52 :53", Message to 8582431438 delivered
Note: SMS acknowledge report received. "Message to 8582431438 delivered" is the ack message
body.