GPRS/GSM conflict!!!
Hey everybody!!!
I need to develop an application in which my Siemens module (XT75) will work as a GPRS modem AND be able to work on the GSM network.
Both parts work well separately. But when they come together there's problem. I actually tried it on a cell phone and if I received an SMS while browsing the internet, the gprs connection was cut. So I'm thinking I cannot use both at the same time. Does anybody know a little more than me about this?
# 1
This is simply not possible with the modules.
If you have a GPRS connection, and a GSM call comes in, the GPRS connection is halted, and continued when the GSM call ends (if it hasn't timed out yet).
# 2
Thanks for the answer!!
I'm thinking along this line:
Let's say I have a running application on the module. I want to connect a computer to the module (at about any time) and use it as a modem. Is there any way to do this? I have tried it and the computer will not open the connection (which is already configured and works fine if no application is running). Is there any way I can configure my module to allow the computer to access it?
# 4
I connect a computer through a serial connection to the module (kind of like using a cell phone to access the internet)...
The modem driver for the module was previously installed and the connection configured in Start>Parameters>NetworkConnections (using the same modem).
# 6
I have tried using both ports and again, they work fine without a running application. But if there is one, I can't use the module as a modem even if the application is running on the other port...
For a TC65, COM1 is used for debugging and it's default. COM0 is free for use but I don't think that's where the problem lies...
And I'm using a XT75. Apparently, COM1 is used for GPS. So I debug on COM0.
But even if I have a application that is not running yet, but is set to start, the module won't allow the modem connection. I don't know why that happens...
