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NetComm Wireless 4G M2M Router
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• Disconnect – terminates connection.
RI action
Determines how the router controls the state of the serial port RI (Ring Indicator) line.
• Always On: RI is always on.
• Incoming Ring: RI is on when an incoming connection request is received.
• Always Off: RI is always off
Enable auto answer
When enabled, the router accepts incoming connections.
Circuit auto answer rings
Sets the number of incoming rings after which the router will answer incoming circuit switched data calls. The
default value is Off. The other available options are from 1 to 12.
Advanced status
Echo enable
Enables echo on the serial side. All commands are echoes. This can be turned on/off via ATE1 and ATE0
commands. Recommended setting for this option is ON.
Quiet mode
When on, there is no output from the modem on the serial side, i.e. you do not see OK, Connect etc.
Recommended setting for this option is OFF.
Send OK on carriage return
If enabled, will print OK every time CR is received on the serial side. Recommended setting for this option is ON.
Suppress line feeds
If enabled, line termination is using CR (13). If disabled, line termination is CR LF (13 10). Recommended setting
for this option is OFF.
Send OK on unknown command
Will send OK when an unknown/invalid AT command is received. Recommended setting for this option is ON.
Verbose mode
The modem returns messages to the computer to indicate the return status of commands and interrupts such as
incoming call and call progress. Recommended setting for this option is ON.
Table 19 - Modem emulator endpoint options
Circuit switched data (CSD)
The CSD (Circuit Switched Data) endpoint is designed for use when CSD connectivity is required between equipment connected
through NetComm Wireless routers. A typical application of CSD is a dial-up connection to an ISDN service. CSD calls use the
functionality of the GSM networking and switching subsystem to carry data via GSM or later cellular networks.
In many ways, this is similar to making a voice call. When a CSD connection is established, the communication end points are
connected via a virtual circuit, similar to connections on traditional phone network. Unlike other end points connected to a Modem
emulator end point, CSD relies mainly on the functionality of 3G/4G/LTE module. In CSD mode, the data stream of the router
transparently passes through the data and signals from the serial port to the module and vice-versa. The available data rates will
vary according to the network of the service provider. It is not necessary to have PDP profiles enabled for this functionality, however,
you may need a special SIM card with data functionality for CSD calls to be made. Check with your service provider.
Figure 85 – Circuit switched data endpoint configuration