DOS · Free download · DLLs and Libraries

cFos/DOSv3.51

is an ISDN CAPI (Common ISDN Application Programming Interface) FOSSIL Driver and INT 14 emulator for high cps-rates.

Operating system
DOS
File size
530 KB
License
Shareware
Last updated
Mar 12, 2026

942 downloads·533 page views

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Overview

What is cFos/DOS?

is an ISDN CAPI (Common ISDN Application Programming Interface) FOSSIL Driver and INT 14 emulator for high cps-rates.

In depth

A closer look at cFos/DOS

cFos/DOS allows applications to communicate via ISDN using any CAPI. cFos/DOS supports multiple COM ports simultaneously, controlled by a powerful AT command set.

Features of cFos/DOS include: support for CAPI 1.1 and 2.0, fast dynamic channel bundling, the ability to dial-in via X.31 and V.120, data compression, and support for the analog modem and fax features of the ISDN board.

Verdict

Should you download cFos/DOS?

cFos/DOS runs on DOS and is available under the Shareware license — the installer is 530 KB. We’ve catalogued it under DLLs and Libraries.

Verified clean. Every cFos/DOS build on SoftLookup is scanned for viruses, spyware, adware, trojans and backdoors. We re-test on every update.
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At a glance

cFos/DOS specifications

Last updated
Mar 12, 2026
License
Shareware
Operating system
DOS
File size
530 KB
Price
Free
Page views
533

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