[SOLVED] AT+CGDCONT return error

[saesaria]

Hi!
I use Ultimo 24+TCP GSM/GPRS modem (wavecom compatible AT-commands).
I'm trying to connect it to GPRS via hyperterminal, but then I have a problem

AT
OK
AT+CGDCONT=1,IP,"TELKOMSEL"
ERROR

anyone knows what the problem is?

Actually I follow the following reference
https://www.wireless-products.dk/PDF-filer/RF-Solution-PDF/GPRS%20AT%20Command%20List.pdf

Then I tried these commands

AT+CGDCONT?
OK
AT+CGDCONT=?
+CGDCONT: (1-4),"IP" , , , (0-1), (0,1)
+CGDCONT: (1-4),"PPP" , , , 0,0

I'm truly newbie for this case, hope someone can help me to solve it. thanks

 

[ckshivaram]

give the complete sequence of commands you are trying with.... let us see where you are wrong.....

 

[saesaria]

SOLVED!
btw thanks you Mr. Ckshivaram for the reply, I found my mistake, the commands should be written as below

AT+CGDCONT=1,"IP","TELKOMSEL"

NOT

AT+CGDCONT=1,IP,"TELKOMSEL"

I'm careless