Telix is a telecommunications program originally written for MS-DOS by Colin Sampaleanu and released in 1986. On 25 September 1992, Exis sold Telix to Jeff Woods who founded deltaComm Development and it has been distributed by them since, including the Microsoft Windows version they developed and released in 1994.
The DOS version was shareware and enjoyed great popularity in the early 1990s. Its strengths included a fast built-in version of the Zmodem file transfer protocol, rather than needing a separate program, and a powerful scripting programming language similar to C, 'SALT' (Script Application Language for Telix), as well as a simpler scripting language called 'SIMPLE' which was suitable for most scripting tasks.
The Windows version suffered from a variety of problems, including delays in publication (it was a complete rewrite by a new author, in Turbo Pascal for Windows, rather than the original C), an unpopular attempt at copy protection and the World Wide Web's impact on bulletin board systems.
Telix can be used to dial bulletin board systems or other phone-line based services. It supports ANSI emulation and various file transfer protocols.