Chapter 4 - Troubleshooting And Frequently Asked Questions; Troubleshooting Examples; Frequently Asked Questions - Multitech MTCBA-G-F1 User Manual

Gprs/Gsm wireless modem with RS232 interface
4. CHAPTER 4 – TROUBLESHOOTING AND

FREQUENTLY ASKED QUESTIONS

Troubleshooting Examples

4.1.
Before calling the Support, check to the following connections:
• The right antenna is connected to the modem
• The serial cable connection is correct
• The power is connected correctly and the power lights on the modem are on
• Verify your signal strength
• Verify your network registration
• Use the following situation examples to troubleshoot the modem not answering and the modem returning a No
Carrier message.
Situation A: The modem does not answer
If the Wireless Multi-Modem does not answer through the serial link upon an attempted transmission of data or
voice signals, see the table below for possible causes and solutions.
Frequently Asked Questions
4.2.
Which providers can I use?
• One major providers is China-Mobile.
• We are China-Mobile approved.
Does this modem support High-Speed Circuit-Switched Data (HSCSD)?
• No, our GSM/GPRS modems do not support HSCSD.
The modem is answering, but seems to not be doing anything?
• The modem is answering in voice mode.
• If you are trying to make a data call, make sure the account has CSD service. You will also need the data number
(separate number from the main phone number that is provided by the provider).
I am trying to make a data connection by dialing from my wireless modem to an analog modem. Why does
the analog modem answer and send tones, but never connect?
• To make a data call you must use the ATD<number> command.
• Make sure the account has CSD service.
How do I make an Internet connection to my dial-up ISP?
• Make sure you have CSD service.
• Create a dial-up connection to the ISP's access number, then use your account username and password and
choose the wireless modem as the device.
How does faxing work?
• GPRS modems support Class 1 and Class 2 Group 3 faxing.
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