Softphone

Why Trust Techopedia

What Does Softphone Mean?

A softphone is an application that enables Voice over Internet Protocol (VoIP) via computing devices, including desktops, laptops, personal digital assistants (PDA) and services like Skype and Vonage. A softphone functions like a traditional phone and is used with a headset connected to a PC’s sound card.

Advertisements

Sometimes a softphone is designed to behave like a traditional phone and has a phone image, display panel, keypad and buttons for user interaction.

Techopedia Explains Softphone

Softphone endpoints must share a communication protocol and at least one audio codec, such as Session Initiation Protocol (SIP), which is standardized by the Internet Engineering Task Force (IETF).

Skype and Google Talk apply proprietary protocols and Extensible Messaging and Presence Protocol (XMPP). Some softphones provide Asterisk’s open-source Inter-Asterisk Exchange protocol (IAX).

Softphones are used in many call centers or customer care centers, where combined phone and computer usage is required.

Advertisements

Related Terms

Margaret Rouse
Technology Expert
Margaret Rouse
Technology Expert

Margaret is an award-winning technical writer and teacher known for her ability to explain complex technical subjects to a non-technical business audience. Over the past twenty years, her IT definitions have been published by Que in an encyclopedia of technology terms and cited in articles by the New York Times, Time Magazine, USA Today, ZDNet, PC Magazine, and Discovery Magazine. She joined Techopedia in 2011. Margaret's idea of a fun day is helping IT and business professionals learn to speak each other’s highly specialized languages.