Types, Components, Features of a VoIP-enabled Phone

by BlueCloud Tech on 30-10-2017 in Technology

Introduction to Voice over Internet Protocol Phone

A VoIP phone makes use of voice over IP technology for carrying out telephone calls. It makes use of the Internet to carry audio signals, unlike the traditional PSTN (Public Switched Telephone Network) devices. Any digital IP-based phone service employs control protocols, ranging from SCCP (Skinny Client Control Protocol) and SIP (Session Initiation Protocol) to proprietary protocols.

Several call centers these days make use of VoIP-enabled devices coupled with an Outbound Dialer to effectively manage calls.

Types of Voice over Internet Protocol Phones

Ranging from software-based softphones, like those used in a BPO Sydney firm or some American KPO organization, to traditional PSTN phones coupled with ATAs (Analog Telephone Adapters), there are a wide number of VoIP-enabled devices to choose from. Each one of them has their own advantages over other ones. Following list provides some different types of voice over Internet protocol phones:

  1. Software-based Softphones
    These are basically a piece of calling software that can be used on devices ranging from laptops and PCs to tablets and other Internet-enabled personal devices for making and attending calls.
  2. Traditional PSTN Phones with Analog Telephone Adapters (ATAs)
    Analog Telephone Adapters, or better known as ATAs, are coupled with traditional PSTN (Public Switched Telephone Network) phones to operate using voice over Internet protocol.
  3. Hardware Devices like Ordinary Telephone or Cordless Phone
    Some VoIP-enabled devices bear an unmistakable resemblance with cordless phones and ordinary telephones. While some are built specifically for VoIP calling, others offer some additional functionality to the user.
  4. Smartphone
    Smartphones are dedicated personal devices meant to keep people connected with their near and dear ones. In the present-day scenario, smartphones are the best means to make use of VoIP services. There is a very big market of such devices owing to the immense popularity that they have received from the public.

Voice over Internet Protocol Phone Components

Most VoIP-enabled phones look like a typical telephone or mobile phone. Despite their appearance, they have following hardware components:

  • A microphone and a speakerphone
  • Keyword or touchpad (not available in ATAs)
  • Display hardware to show caller-id/messages and feedback user input
  • A GPP (General Purpose Processor) to process application messages
  • A DSP (Digital Signal Processor) or voice engine to process RTP messages. (Some IC manufacturers offer GPP and DSP installed on a single chip.)
  • AD (Analog to Digital) and DA (Digital to Analog) converters for converting voice into digital data and the other way around
  • Wireless network or Ethernet hardware to send as well as receive messages on a data network
  • A battery or AC/DC power source
  • An RJ-11 port to connect the device to the PSTN

Functionalities and Features of VoIP Phone

There are loads of features that a VoIP-enabled phone serves to its user. These are:

  • Caller ID display
  • Call hold and call transfer
  • Dial a number using name/ID
  • Network-based and locally stored directories
  • Conference calls
  • Call park
  • Call blocking
  • Multi VoIP account support
  • Encrypted communication

Voice over Internet Protocol is a groundbreaking technology in the field of communications. The technology is improving with every passing day.

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