Configuration Guidelines for using PPP over GSM/GPRS card

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Issue:

Configuration Guidelines for using PPP over GSM/GPRS card

Product Line:

NetBotz

Environment:

NetBotz version 2 using GSM/GPRS

Cause:

Configuring GSM/GPRS cards to establish a PPP link can be a challenge; however, it all depends on what settings are required to establish a PPP link with a GSM/GPRS service provider.

Resolution:

Before you begin, make sure the supported GSM/GPRS card has a valid SIM.

A successful PPP connection (i.e. with Cingular in the U.S.) via GSM/GPRS may be established by 2 basic steps:

* Set "Phone Number" to *99# (it signalizes GPRS network that this is not a regular phone call but a GPRS connection)
* On Advanced tab, UNCHECK "end LCP echo request to peer"
* Leave everything else default

Some GPRS service providers require more settings for a successful PPP connection (more common in Europe and Asia). Contact your GPRS provider for the following:

* Country code (if supported by the modem)
* User ID/Password
* Access Point Name (APN), used in "Extra Initialization commands" field in this format:

AT+CGDCONT=1,"IP","<APN>"

Where <APN> should be replaced with a specified APN of the desired GSM/GPRS network.

For instance,

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

or

AT+CGDCONT=1,"IP","mobile.o2.co.uk"

Note:To ensure your card and SIM are working correctly, install the card in your laptop or handheld first, then install it in the NetBotz appliance.