SyncTERM is a multi-platform BBS terminal program which supports:
* X/Y/ZModem up/downloads
* *nix versions will run using SDL2, X11, or {n}curses
* Full ANSI-BBS support
* Full CGTerm Commodore 64 PETSCII support
* Full Atari 8-bit ATASCII support
* DoorWay support
* Support for IBM low and high ASCII including the face graphics (☺ and ☻) and card symbols (♥, ♦, ♣, and ♠) (may not work in curses mode, depends on the terminal being used).
* Phone books
* Multiple screen modes (80x25, 80x28, 80x43, 80x50, 80x60, 132x25, 132x28, 132x30, 132x34, 132x43, 132x50, 132x60)
* ANSI Music (through the sound card if installed)
* Telnet, RLogin, SSH, RAW, modem, shell (*nix only) and direct serial connections
* Auto-login with Synchronet RLogin
* Large Scrollback
* Mouse-driven menus
* Copy/Paste
* Supports character pacing for ANSI animation as well as the VT500 ESC[*r sequence to allow dynamic speed changes
* Comes with 43 standard fonts and allows the BBS to change the current font *and* upload custom fonts.
* Supports Operation Overkill ][ Terminal emulation

https://www.syncterm.net