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Thursday, August 7th 2014, 5:45am

GSM<=>GSM Data (CSD) connecting problem

Hello,

Would you please help me with my GSM<=>GSM Data (CSD) connecting problem?

I am trying to send chars from GSM1 to GSM2 connected to 2 laptops

This is my AT commands in RX
AT&F
AT+cpin?
AT+clip=1
AT+creg=2
AT+cmgf=0
AT+cbst=7,0,1
AT+crlp=61,61,39,1;+cr=1
AT+fclass=0
ATS0=1

This is my commands in my TX

AT&F
AT+cpin?
AT+clip=1
AT+creg=2
AT+cmgf=0
AT+cbst=7,0,1
AT+crlp=61,61,39,1;+cr=1
AT+fclass=0
ATS0=1
ATdtXXXXXXXX


Results:
1) I receive CONNECT at TX console
2) When I type chars in laptop 1 it does not show the chars in the second laptop, except when I type any char very fast like "uuuuuuuuuuu" it will show "u" in the second laptop(RX)
the strange thing that I see " " (empty spaces) with any char I type then later on only random char from my typed one comes in the RX.

I am very new in this field, Would you please help me with my problem?
Do I need to use this command AT+MS=V34,1,300,4800,300,56000

By the way, thank you for the forum admin to allow me to join to ask about this problem.

Kind Regards,
Rabbit

2

Friday, August 8th 2014, 9:14am

In my environmal it works. I've used this settings commands.
AT&F
ATS0=1
ATD=12345678

Please try in this way. Thanks.

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