Implementation scenarios for an IGSS WAP Services (IWS) solution

At present, there are two different ways in which an IWS solution can be implemented. These can be briefly described as an “off-site gateway” solution and an “on-site gateway” solution.

With the “off-site gateway” solution, the gateway software required for communication between the WAP enabled cellular phone and the combined IGSS server/Web server is located on a server owned and maintained by a commercial service provider offering communication services between WAP devices and the Internet. Access to the combined IGSS server/Web server is thus gained via the equipment owned and maintained by the service provider.

The “on-site gateway” solution bypasses the need for an external service provider because the software required for communication between the WAP enabled cellular phone and the combined IGSS server/Web server is installed on the latter. Access to the combined IGSS server/Web server is gained directly via a modem attached to the combined IGSS server/Web server.

The following table gives an overview of the differences between the two scenarios with respect to the software and hardware necessary for implementation.

 

Off-site Gateway

On-site Gateway

  1. IGSS server connected to Internet for WAP phone access via Internet protocols. (Modem not required.)

1. IGSS server not connected to Internet because WAP phone access occurs through a modem. (Modem installation required.)

  1. Internet Information Server/Services (IIS), or other 3rd party www server s/w must be installed on IGSS server to give it Internet server functionality.

2. Internet Information Server/Services (IIS), or other 3rd party www server s/w must be installed on IGSS server to give it Internet server functionality.

  1. Gateway s/w between WAP and Internet protocols located on service provider’s server.

3. Gateway s/w between WAP and Internet protocols installed directly on IGSS server, which is obtained from 3rd party.

  1. Fixed IP address for IGSS server obtained from service provider. WAP phone access via Internet.

4. IP address randomly chosen because IGSS server not connected to Internet. WAP phone access to IGSS server via modem.

  1. Configuration of Win NT4/ Windows 2000 network parameters.

5. Configuration of Win NT4/ Windows 2000 network parameters.

  1. RAS server(NT) or incoming connection (Win2000) irrelevant here because WAP phone access to IGSS server via Internet.

6. RAS server (NT) or incoming connection (Win2000) must be installed with defined users because WAP phone access to IGSS server via modem.