MTCBA-C-N16 Multi-Tech Systems, MTCBA-C-N16 Datasheet - Page 19

• Manufacturer Part Number: MTCBA-C-N16
• Description: MODEM CDMA RS-232 DC AERIS
• Manufacturer: Multi-Tech Systems
• Series: MultiModem® CDMAr

Specifications of MTCBA-C-N16

• Function: Transceiver, CDMA, Modem
• Modulation Or Protocol: CDMA2000
• Frequency: 800MHz, 1.9GHz
• Applications: General Purpose
• Interface: RS-232
• Data Rate - Maximum: 153.6 kbps
• Voltage - Supply: 5V
• Package / Case: Module with Case
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Multi-Tech Systems, Inc. MultiModem CDMA Wireless Modem User Guide
Establishing a Voice Call
Establishing a Circuit-Switched Data (CSD) Connection
A Circuit-Switched Data Connection makes the wireless modem work like a regular analog modem. You must
have CSD service in order to make a CSD call.
Answering a Circuit-Switched Data (CSD) Connection
A Circuit-Switched Data Connection makes the wireless modem work like a regular analog modem. You must
have CSD service in order to answer a CSD call.
• Initiate a voice call
• Initiate an emergency call
• Hang up
Establish a Connection:
Disconnect:
Establish A Connection:
Answer a Call:
Set Auto-Answer:
Disconnect:
Type ATD1234; (Note: Don’t forget the semicolon “;” at the end. This stands for voice calls)
Responses:
Type ATD112; (Note: Don’t forget the semicolon “;” at the end. This stands for voice calls)
Responses:
Type ATH
Responses:
OK (Communication established)
CME ERROR : 11 (PIN Code not entered [with +CMEE : 1 mode])
CME ERROR : 3
OK
OK
Using HyperTerminal or a terminal application, you can establish a CSD
connection by entering the following command: ATD<phone number>
Type: +++
Wait about two seconds to see an OK response.
Then type: ATH
Note:
Using HyperTerminal or a terminal application, enter the following command:
AT+CICB=0 <cr> This sets the modem to answer in data mode.
Then, call into the modem by dialing the number provided by your carrier.
When you see the RING responses on the terminal screen, enter ATA <cr> to
answer the call.
Enter ATS0=x
This sets the modem to auto-answer. The call will be answered after the number
of rings entered. x stand for the number rings.
Then call into the modem by dialing the number provided to you by the carrier.
Type: +++
Wait about two seconds to see an OK response.
Then type: ATH
Notes:
•
•
+++ is the escape sequence and ATH is the Hang-up command.
The phone number you are calling is entered between the displayed
brackets. Do not type additional brackets. For example, type only ATD
8585551212. 8285551212 is typed between the brackets.
This command tells the modem to inform the wireless network that you are
initiating a CSD modem call. If you are dialing to another modem, the
remote modem should answer and a connection between the two modems
will be established. If you include a semi-colon (;) at the end of the dialing
string, the modem will instead initiate a Voice call to the phone number
dialed.
(Operation not allowed)
Chapter 3 – Using Your Wireless Modem
19