MTCMR-C1-GP-N3 Multi-Tech Systems, MTCMR-C1-GP-N3 Datasheet - Page 119

• Manufacturer Part Number: MTCMR-C1-GP-N3
• Description: MODEM CELLULAR DUAL CDMA
• Manufacturer: Multi-Tech Systems
• Series: MultiModem® iCellr

Specifications of MTCMR-C1-GP-N3

• Function: Transceiver, CDMA, Modem
• Modulation Or Protocol: CDMA2000
• Frequency: 800MHz, 1.9GHz, 1575.42MHz
• Applications: Verizon™ Networks (USA)
• Interface: RS-232, USB
• Sensitivity: -161dB
• Data Rate - Maximum: 153.6kbps
• Voltage - Supply: 9 V ~ 32 V, USB
• Package / Case: Module
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 881-1097

Call Processing
Multi-Tech Systems, Inc. CDMA C1 AT Commands Reference Guide (PN S000478C)
Call Origination
Calls are originated by using the ATD command.
Answer Incoming Call
Incoming calls are answered either by using the ATA command or setting the value of the Automatic Answer
S0 register to a non-zero value.
Hang Up Call
Calls can be terminated either by using the ATH command or by negating the modem signal DTR on UART1.
See the AT&D command for more information.
Subscriber Calling Features
Subscriber Calling Features provides voice call services beyond making a single call. The services are to a
large extent implemented on the network side and can, therefore, vary among different operators. The
examples below are for the service provider Verizon but should apply for most operators.
The services supported by the CDMA-C1 device are:
Calling Line ID
Call Forwarding
Call Waiting
Three-way calling
See Call Commands for more information about voice call services.
Calling Line ID
The caller‘s ID, if presented to the network during an incoming call, is reported as a +CLIP unsolicited
message if the AT+CLIP=1 command is issued. For example:
Call Forwarding
Your application can unconditionally forward or cancel forwarding of all incoming calls by using the
AT+CCFC command.
Call Waiting
The device will report an incoming call while a call is active by using the +CCWA unsolicited response.
Three-Way Calling
The AT+WFSH command can be used to initiate and manage three-way calling.
at+clip=1
OK
RING
+CLIP: "9195551212",129
Chapter 20 – Host Application Scenarios
119