INTERNET TO GPRS CONNECTION

Discussion:

(too old to reply)

2006-11-15 11:24:24 UTC

I want to know how to send data to a GPRS enabled device, if i got
static ip and port address? I can RECEIVE data from the device but to
INITIATE the conection from internet and connect to the GPRS device is
a failure so far.Am working in VB 6. Please Help.

Andreas Hezel

2006-11-16 11:16:53 UTC

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Post by AB
I want to know how to send data to a GPRS enabled device, if i got
static ip and port address? I can RECEIVE data from the device but to
INITIATE the conection from internet and connect to the GPRS device is
a failure so far.Am working in VB 6. Please Help.

First a question. Du you use a own APN or the APN of your Network Provider?

If you use the APN of your Network Provider you won't get a IP wich is
accessible over the Internet. The Network Providers use a private Network.

--
Andreas Hezel
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Andreas Hezel ---> Mail: ***@gmx.de
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2006-11-18 08:48:12 UTC

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Thanks for telling me that, How can i have my own APN ? as currently am
using my cell phone comapny provided APN.

Mikko Rapeli

2006-11-20 00:17:53 UTC

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First, check from your provider/cell phone company that they allow incoming
ICMP/TCP/UDP connections to your phone/SIM/subscription. Most consumer
subscriptions have firewalls between the Internet and GPRS network which
don't allow incoming connection attempts, since users may pay per bit or
have some per month transfer limit and the Internet noise would hit
them hard. And it would drain the battery too.

Second, if your provider allows incoming data to your static IP address,
does it open the GPRS connection to the phone automagically or do you
have to make sure the GPRS stuff is active on the phone side.

Third, this isn't really PPP stuff so some other networking or device
specific newsgroup/forum would be better for you.

-Mikko

neo

2006-11-23 03:53:40 UTC

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Receving inbound data from the internet to a gprs device is only possible
after initiating outbound data first. You send an outbound packet to the
fixed-end site and the fixed-end returns another packet. Depending upon the
service provider, the window of opportunity to receive inbound after the
outbound packet is limited. I've seen this be as low as 10 second to 15
minutes.

Also, if your data is not too big, you should consider SMS which works on
cdma,iDEN and GPRS.