Implementation of VoIP Using Softphone Application Based on SIP

Voice over Internet Protocol (VoIP) is a technology that can pass voice, video and data over an Internet Protocol (IP) network. This study aims to implement VoIP using softphone application, based on Session Initiation Protocol (SIP) at Said Na'um Waqf Education Foundation, and to know the voice quality resulting from the communication made using VoIP, as well as knowing the bandwidth required for voice quality to be used properly.