Chapter 3 – Unsolicited AT Result Codes
Multi-Tech Systems, Inc. CDMA Wireless AT Commands - PN S000294C 16
Call Waiting Indication +CCWA Description: This response indicates that another incoming call is occurring during an existing call. See
+WFSH, Send Flash to Base Station in chapter 9 for information about handling call-waiting
situations
Values: <caller_id> Caller identification number
<type> always 129 for this response
Syntax: Response syntax: +CCWA: <caller_id>, <type>
Example Result
+CCWA: 18005551212,129
Note: Incoming call from 1-800-555-1212, type always equals 129.
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 (Um Interface
Data Compression) for an explanation of +CDS usage for data compression.
Values: <mr> Message Reference
<ra> Recipient Address
<tora> Type-of-Address of <ra>
<scts> Service Center Time Stamp in string format : “yy/MM/dd,hh :mm :ss±zz”
(Year/Month/Day,Hour:Min:Seconds±TimeZone)
<dt> Discharge Time in string format: “yy/MM/dd,hh :mm :ss±zz”
(Year [00-99], Month [01-12], Day [01-31], Hour, Minute, Second and Time Zone
[quarters of an hour] )
<st> Status of a SMS-STATUS-REPORT (See Chapter 20)
Syntax: Response Syntax: +CDS: <mr>, [<ra>] , [<tora>], <scts>,<dt>,<st> (Text mode)
Example Result
+CDS : 2, 116, ”3146290800”, 129, “98/10/01,12 :30 :07+04”, “98/10/01 12 :30 :08+04”, 0
Note: SMS status report received
Description: This response indicates an SMS status report has been received and according to the
message storage preferences (+CNMI), is to be stored in memory.
Values: <mem> NVRAM storage area (always “SR” for this response)
<index> location of message within storage area
Syntax: Response syntax: +CDSI: <mem>,<index>
Example Result
+CDSI: “SR”,5
Note: SMS status report received and stored in “SR” memory at index 5