how to establish data call ??

[Ioannis]

I think I told you that it is totally dependant on the model of your device.

Read your device manual or data sheet and see what commands it needs.

Ioannis

[Telemark]

Hi Ioannis,

The Telonika WirelessCom sounds ideal for an application I have in mind. I Just skimmed through the manual for it and found it a bit sketchy in parts. I assume that if you have the static IP address for your internet-connected PC then the rest is straightforward. Did you find any traps in configuring the unit?

Thanks

John

[Ioannis]

Hi John.

In general is very easy to set it up.

The only trap was the buffer, that was factory set up to a very large number, I think 2 or 4000 bytes.

So my initial attempts to send a few "hello" to the host,just seemed to fail. But the problem was that buffer did not filled up with data, so no connection was made. I had to send a few thousands of bytes to see them coming, but was not aware of that.

After changing the buffer size,all was working great. And fast really. I received my data in less than a second!

Ioannis

[hjahshan]

i find the AT command for my GSM/GPRS modem
i don't know which command to be used for establish the data call
can i connect 2 GSM/GPRS modem to send data over GPRS?
here the AT command for my GSM/GPRS modem Telit GE865-QUAD
http://www.edaboard.com/attachments/..._r5%5B1%5D-pdf
what's the code for establish this connection between the modems ??
thanx

[Ioannis]

A "data call" is not correct.

By data call I suppose you do not mean a 9600, modem connection, right? This is different story. Just get a data/fax service from your provider (usually a new data/fax number on the same SIM card) and you have it already done!

The GPRS is totally different thing. You need all the parameters from your provider (APN, username, password, type (PAP,CHAP,Auto) and maybe others).

Also you cannot establish point to point communication since the IP of the GPRS service is dynamic.So you need to establish a communication to a Static IP, usually a PC running some server software to relay data to another GPRS device.

Ioannis

[hjahshan]

iam try this command for data call on CSD
AT
OK
AT+FCLASS=0 ----->to set the data mode
OK
AT+CBST?
+CBST: 0,0,1

OK
AT+CBST= 1,0,1;------>here i changed the speed
OK
at+cbst?
+CBST: 1,0,1

OK
atd 0599592724
NO CARRIER

the result no carrier .

ok , i know it's not data call over GPRS , but i don't know how to establish data over GPRS
i can get all informations from the provider (APN,IP,etc ) ,i have spical sim cards "2 sim data cards",it's used for data call only ,every one of them have an ip address .
but what i need how to establish data call over GPRS step by step ?
thanx for your replay

[Ioannis]

According to your manual, you seem to have set it up OK for CSD.

The number you are calling does ring? Is it a land phone line with an old modem?

Does this modem answer the call?

Does this modem have the same speed or is it auto speed set?

Ioannis