Confidential
USERS MANUAL
142(158)
Document number
Revision
1/198 17-4/FCP 101 3045 Uen
D
OK
6.8.4 Three-way
calling
Three-way calling is the service where multiple (3) calls can be active simultaneously.
The example below shows how the CM52 originates two separate calls and then connects them all together.
Command/
response (in gray)
Description
ATD1234567
Dial the first phone number
OK
ATD!9876543
Dial second call using Flash with info and phone no
OK
ATD!
Send a Flash message to activate both calls
OK
ATD!
Disconnect the second party, first party is still active
OK
ATH
Hang-up call
OK
6.9 SMS
6.9.1
Mobile Originated (MO) Messages
Use AT+CSSM to send an SMS message.
Note:
AT+CSSM has quite a few optional parameters for advanced SMS options.
6.9.1.1
Sending Text Data to MIN
Send a text message to MIN 123.456.7890.
Note:
The default values for the optional parameters are used in this example.
AT+CSSM=”1234567890”,”SMS message example”
+CSSM: 9
OK
6.9.1.2
Sending binary data
Send a binary message to MIN 123.456.7890. Note that the user header data is specified to be 10 for hex
data. The message is composed of the hex codes for the ASCII sring “135792468”.
AT+CSSM=”1234567890”,313335373932343638,,,10
+CSSM: 8
OK
6.9.1.3
Sending Text to Email Address
SMS messages can be sent from the CM52 to an email address. Carriers will use either standard or non-
standard email addressing techniques. The CM52 can be configured to enable the technique used by the
carrier via NAM programming. If the non-standard addressing is used, refer to the note associated with the
AT+CSSM description. This example sets the <type> parameter to 46 to specify an internet address.
AT+CSSM=”[email protected]”,”email SMS”,,46
+CSSM: 64