Ascendis Caller ID works with your caller id service to track and announce phone calls and block annoying telemarketers! Calls can be announced with pop-up windows, sounds, or text-to-speech, and can trigger email, run other programs, or hang up.
With Serial Splitter Mobile by Eltima for Windows Mobile 2003/2005 you can split real or virtual serial port into several others, join several serial ports into one, share its dataflow between applications and even disable existing com ports.
Make voice calls from any PC in the world. Free voice connectivity with Internet users. RinGo allows you to make calls from any place in the world from your PC without the use of PSTN (traditional telephony provider) for local and international calls
PeerMe has developed an instant messaging platform which supports Peer to Peer Voice, PC to PC and PC to handheld voice communications, instant messaging, and peer-to-peer file transfer all over public Internet connections.
A program to communicate with phone TTY/TDD devices (Telecommunications Devices for the Deaf) via a sound card or via Skype Internet-phone, without TTY modem.