OSTENT GSM Modem with Wavecom Q2303A Module USB Interface at Commands SMS

I had to troubleshoot on my own and discovered that this modem by default uses 115200,8,n,1 as opposed to the common 9600,8,n,1 listed on the prolific driver default settings in Windows after installation. One other extremely very important thing to make it work, make sure you Assert the RTS Handshaking Line in your comport to true as opposed to NONE which is default. Once this is done, this modem start working like a charm if you know your AT commands of course. I suspect lack of this info on these default settings is why it never responds or works for most users who buy it and end up condemning it. For those it works for first time, I also suspect it will simply have been by chance that they will have got the bound rate and handshaking correct first time. Its sad that this very basic info should have been readily supplied / marked on this otherwise beautiful device by the manufacturer. So I gave 5 starts to the modem but 1 start to the manufacturer for lack of documentation. This good modem has no owner in this regard.

I bought two modems and none of them worked. I tested them in a laptop with Windows 10 and in a laptop with Ubuntu 16.04. I followed the instructions: downloaded the driver PL2303 and installed it. The device manager in Windows looked fine, I could see the "Prolific USB-to-Serial Comm Port (COM3)". However, I was not able to send AT commands to the router using PUTTY. The terminal window froze. In the case of Ubuntu, the command dmesg | grep tty returned "pl2303 converter now attached to ttyUSB0", however I was not able to use it with gammu/wammu nor kannel. It was not recognized. It seems that the modem is not compatible with the most common software.

Work fine with my RaspiSMS.Here my gammu.rc file :[gammu]port = /dev/ttyUSB0model =connection =gammuloc = utf8

NO DRIVER! DOES NOT WORK! PROVE ME WRONG AND WITH A DRIVER!savethatdeal@gmail.com

Arrived 2 weeks earlier than the projected delivery date. All 3 items worked perfectly as expected.

Arrived 25 days before estimated time. and its working fine. Thank you OSTENT

It is not really a modem. It can't create Internet connection by functioning a a cellular modem. It can send SMSs though.

thanks