3. OPERATING THE SIM SERVER
Overview
At the core of every VoIP²ALL unit there is a DSP processor. The processor runs on a Linux operating
system. Run the v2g_2 program which operate the unit and a sim_server program which operate the
internal SIM Server.
The SIM Server is connected to the net with one IP Address in 3 different Ports:
2007 is the port for managing the unit
2008 is the port for managing the SIMs
2009 is the port of the Internal SIM Server.
The work of the SIM Server is done automatically. Each time you insert a new SIM Server card, it
scans the card and updates the data base of the SIMs.
The data base of the SIMs is kept on a DB file and the settings of the SIM Server are kept in
sim_server.xml file inside the SIM Server.
When connecting with the PC management (port 2007), the only setting that needs to be done with
the PC software is the IP settings. That includes the IP Address of the unit, the Default Gateway
address and the Subnet Mask. The rest of the settings are relevant only to the gateway.
When a gateway is connected to the management software, the SIMs data base is read from the SIM
Server. The status of the each SIM can be viewed and the settings can be changed.
The gateway can be configured for each SIM to define when the SIM will work and with what setting
to register it in the cellular network. The gateway saves these settings in the xml file.
When the time to work with a SIM from the SIM Server arrives the gateway connects to the SIM
Server port 2009 and requests registration data from the SIM Server. The transferring of the data of
the SIM is done with port 2008.
After the SIM is registered in the cellular network the gateway can work without a constant
connection to the SIM Server. Connection to the SIM Server is needed only if during a call the cellular
network requires additional data from the SIM.
Network Bandwidth
When the gateway is registering SIMs from the SIM Server in the cellular network it sends 250 Bytes
per seconds, for each SIM.
When the SIM is registered, it sends 50 Bytes every 30 seconds for each SIM.
3.1. CONNECTING TO THE SIM SERVER
To connect to the SIM Server with the PC Management:
1) Launch the VoIP²ALL Management by clicking the VoIP²ALL logo on your PC desktop.