TTYredirector in Modem Applications

Equipment and software

• Modem applications run on Linux-based x86 client computers.

• A modem server with sufficient total modem capacity is centrally located where telephone services can be provisioned.

• TTYredirector is installed on client computers.

• On each client computer, TTYredirector pseudo-tty devices are configured for each application that dials modem connections.

Networking

• TTYredirector (on the client computer) must be able to make TCP/IP connections to the modem server on demand, using a specified TCP port number at which the modem server provides the next available modem.

• The connection from the client computer to the modem server typically uses a local area or managed network.

Typical applications

• Console-level management of servers and network equipment

• Facility automation for access control, security systems, HVAC

• Automated gas/electric meter reading, 911 systems, medical data collection, SCADA