Teltone TLS-3A-01

The Teltone TLS-3A is a portable, two-line device that emulates the public telephone network. The TLS-3A is a tool for demonstrating telephone instruments and other telecommunications equipment such as fax machines and modems. The TLS-3A’s small size and light weight make it ideal for trade shows and other sales presentations, and for testing telephone sets, key systems, and PBX installations.

Like the public telephone network but on a smaller scale, the TLS-3A can provide dial tone, audible ring and busy signals to the telephone or other device connected to it. When a caller uses one phone or other device to dial up the second phone, the TLS-3A sends ringing current to the second phone until it goes off-hook. The TLS-3A then establishes a connection between the two phones. Either telephone can be used to call the other line.

In other words, the TLS-3A is a simple telephone network in a box. When a telephone connection is not available, or when installing a temporary telephone line would be costly, the TLS-3A provides all the signals and functions you will need to demonstrate or test your telephones, modems, and other telecommunications equipment.