pls help how to use M1306B in ubuntu. How to configure and where to find its directory.
do i need to install something? or download something?
What exactly do you mean by, “use”?
Do you just want to use it as a modem?
Or are you asking how to install & use the Open-AT SDK?
Or what??
i have the hardware and a PC how to use it in ubuntu i want to configure the M1306B can i do that?
You didn’t answer the question 
but I take it that means you just want to use it as a “dumb” modem - yes?
In that case, as far as the PC is concerned, there is no difference between this modem and any other modem - or, in fact, any other RS232 peripheral!
You just need to set-up the PC’s serial port and whatever communications program (eg, a terminal emulator) you will be using.
Similarly, as far as the M1306B is concerned, there is no difference between a PC running Ubuntu and a PC running Windoze
- or, in fact, any other RS232 host!
You will need to read the User Guide for the M1306B, and the AT Commands Interface Guide
oh i am sory, yes i am using it as a modem but i plug it in a usb port not in a serial port is there a difference?
and where can i see my logs?
The M1306B doesn’t have USB - so you can’t plug it directly into a USB port!
I presume you mean you’re using a USB-to-RS232 converter?
If so, you need to be sure that the USB-to-RS232 converter provides a full serial port suitable for use with modems - including all the control lines.
I don’t know how USB-to-RS232 converters are handled on Ubuntu, but on Windoze they appear as just another COM port - and you handle them exactly as any other COM port…
am ok thank u awniel for ur help, ur a big help