SIP Adapter

Uplink is a free program that connects SIP protocol VoIP calls to the proprietary Skype phone network

Tags: SIP Adapter , connects SIP protocol , VoIP calls

Carousel is a free software that can connect VoIP calls to ordinary telephone lines and vice versa

Tags: Telephony Adapter , VoIP call , telephone line

Quorum is useful software that runs as a phone conference server on any Windows PC

Tags: phone conference server , join telephone conferences , phone lines connector

PhonerLite This application helps you make Internet calls fast and easy.

Tags: voice over IP , internet telephony , SIP protocol , telephony , VoIP

Call conferencing software.

Tags: quorum , telephone conferencing , teleconference , business meetings , phone meetings

make phone calls using just an ISDN and sound card

Tags: voice over IP , make call , phone call , isdn equipment

A portable VoIP software application.