how to establish data call ??

[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

[hjahshan]

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

no didn't ring , no it's a mobile phone
i put 9600 for speed
:sad:

[Ioannis]

Do you have a land modem to make a test?

If yes, call it and see if it rings.

Then with the help of a terminal program send ATA to the modem and see if you manage to get a connection from the GSM call.

Report results.

Ioannis

[hjahshan]

Do you have a land modem to make a test?

If yes, call it and see if it rings.

Then with the help of a terminal program send ATA to the modem and see if you manage to get a connection from the GSM call.

Report results.

Ioannis

what is the land modem ?? u mean modem connect to telephone line ??

[Ioannis]

Yes that is what i meant. The good old fashioned 28.8 or 33.6 or 56K modem. Maybe you have a laptop with such a device still on.

Ioannis