ISDNphone

ISDNphone is a versatile Communication program in the Instant messaging subcategory, developed by Jochen Tillmanns. The latest version, 2.4.2.18, offers seamless functionality, allowing users to make phone calls directly from their PC using a hardware ISDN-adapter. This program is equipped with a built-in phonebook, which supports speed dial, and is also compatible with external applications using TAPI or the command-line. The call journal feature provides detailed information and acts as an effective call monitor.

The program’s file size is a compact 1.7 MB, and it comes in the form of ISDNphone2.exe. Remarkably, it supports a wide range of operating systems, including Windows XP, Vista, 7, 8, 10, and 11. Previous versions 2.4, and 2.2 are also available for those who may prefer older iterations of the software. It operates under a Shareware license, which typically allows users to try the program before purchasing.

Pros:

• Supports several operating systems, ensuring broad compatibility.
• Detailed call journal feature for tracking and monitoring calls.
• Built-in phonebook with speed dial capabilities.

Cons:

• The Shareware license limits indefinite free usage.
• Requires a hardware ISDN-adapter, which may not be readily available for all users.

For those interested in enhancing their communication capabilities directly from their PC, downloading ISDNphone could be a solid choice. The program can be found with accompanying search terms such as "make phone calls from PC", and "call journal and monitor PC program". With its size and functionality, it also remains relatively lightweight while packing in essential features that justify a trial or even purchase for the right user.

You may want to check out more software, such as WinPopup Speak or Sametime Client, which might be related to ISDNphone.