The T-311 is a highly flexible tool for applications where DTMF access and control of computers and other equipment is needed. It lends itself to specialized application development, involving simple code writing.

The T-311 automates virtually all your calling, giving you the speed of a predictive dialer, without the expense and complexity. Applications for the T-311 include university alumni fund-raising, remote testing, voice messaging, and remote monitoring or control of alarm systems, energy management systems, and more.

Teltone's T-311 makes your business or organization telephone contacting more efficient and productive by giving you the power of personal computer-telephone integration!

The T-311 offers the following capabilities:

• Translates the computer's language (ASCII code) into the language of the telephone network (DTMF tones), and vice versa.

• Detects and analyzes call progress tones such as dial tone, reorder, busy, and ringback, and informs computer of outgoing call status with ASCII code.

• Detects presence of voice when outgoing call has been answered.

• Answers incoming calls, and can be enabled to answer after a specified number of rings.

• Protects your system with programmable password security.

• Interfaces to and provides control of audio sources such as tape players or speech synthesizers for recording or playing back messages as directed by the computer.

• Connects to headset for hands-free operation.

• Uses the industry standard AT command set for maximum compatibility with existing communications software.

• Quick, easy installation and setup.

With the T-311 Telephone Access Unit computers can make and answer telephone calls, and information about those calls can be returned to the computer. While a modem only transmits data from computer to computer over telephone lines, the T-311 allows communication between called and calling parties.

The T-311 is used for a variety of applications where automating the process of making and receiving calls is desired. These applications include commercial, industrial, and business environments as well as non-profits and university environments.

Applications for the T-311 fall into three basic categories: outgoing calls, incoming calls, and security for incoming calls.

Outgoing Calls: This is the most sophisticated application for the T-311, particularly when incorporation of the proper applications software and an audio source allow the T-311 to operate without human supervision.

Incoming Calls: In this type of application, the caller uses the T-311 to update or verify information in a remote computer database.

Inward Security: The T-311's security checking feature can be used for incoming call applications like dialback security systems or building security systems.