I have just seen a few posts littered around this forum relating to V23 modems and Prestel etc. so I thought I would just introduce the TELSTAR videotex system for those that are not familiar with it.
The TELSTAR videotex system, developed in 2018, is a modern application that provides a simple viewdata/videotext platform similar to those that were prevalent during the 1980s such as Prestel. The aim of the system is to provide a Viewdata experience for anyone who is interested in how things 'used to be'. Services in the past typically provided access via the public switched telephone network (PSTN) connection and this is indeed how Telstar works, however, Telstar also makes use of a simple internet connection for modern internet modems.
Full details of the system and how to connect etc. along with some videos showing how to connect with devices such as the BBC Micro, Spectrum, Apple II and a Tandata terminal, can be found at the link below.
Enjoy!
https://glasstty.com/wiki/index.php/...ideotex_System