autodialers phone dialer systems automatic dialer automatic dialers

What is VOIP?

VOIP allows users to make telephone calls over the internet to other VOIP users free of charge and to landlines and cell phones for a minimal fee. Since calls are made over the internet, you no longer need a physical phone line. VOIP stands for Voice Over Internet Protocal.

 autodialers phone dialer systems automatic dialer automatic dialers

What is SIP?

SIP is a standard for VOIP. With SIP, you use a SIP softphone to make phone calls from your computer. A SIP softphone is simply a piece of SIP client software with a telephone-like user interface. Each line started by Voicent software acts as a SIP softphone. Once you setup and configure Voicent for SIP, you can use any Voicent program as if you are using regular telephone lines.

 autodialers phone dialer systems automatic dialer automatic dialers

SIP Termination

A VOIP service feature that allows you to call both local, long distance and international phones and cell phones directly from a SIP softphone (thus from Voicent).

 autodialers phone dialer systems automatic dialer automatic dialers

DID Number

Stands for Direct Inward Dialing Number. The number looks exactly the same as a regular phone number and it allows anyone to call your SIP softphone from a landline or mobile phone.

Setup Voicent To Use Your Phone Service

You can use your own phone service with Voicent software on premise only. For Voicent's Cloud Service, you don't need your own phone service.

Set Up Voicent To Use A...


  • VoIP Service

    • Call Centric
    • SkypeConnect
    • Vonage
    • Fonality
    • Localphone
    • RingCentral
    • Nextiva
    • ViaTalk
    • Broadvoice
  • IP PBX System

    • Cisco
    • Avaya
    • Asterisk
    • Mitel
    • Shoretel
    • Ipitomy
    • Talkswitch
    • Nortel
  • SIP Trunk Service

    • SkypeConnect
    • Airespring
    • Bandwidth.com
    • VoipInvite
    • Nexvortex
  • Analog Phone Line

    • Analog phone lines
    • MagicJack
    • Ooma
    • Vonage Hard Phone

If you want to use a VoIP service, but don't have one, please click here.

VoIP, SIP trunk, PBX, or Analog?

In order for Voicent software to make or answer phone calls, you must tell it which phone service to use.

The easiest setup is through a SIP-based VoIP phone service (such as SkypeConnect or Callcentric), or through a SIP Trunking service (such as Broadvox or Bandwidth.com).

There are other relatively easy ways to setup and use Voicent software (such as through a corporate PBX). They just aren't quite as easy as a VoIP phone service or a SIP Trunk service.

When you use a SIP-based VoIP service or SIP Trunking service, you'll get:

  • Easy installation and setup - No hardware installation; just download the software and setup in minutes
  • No need for physical phone lines
  • No need for telephony hardware - no voice modem, no dialogic board
  • Support for the latest Windows OS - Windows XP, Vista or Windows 7
  • Unlimited scalability - supports simultaneous calls up to as many as your computer allows

Almost all VoIP services are based on the same SIP standard so you have many choices and can easily switch among them.

Note: Although SkypeConnect is SIP-based, the free version of Skype is not. You can use Voicent software with the free version of Skype service, but you will lose some important features. (Learn more here).

If you already have phone service, you can follow the screen prompts in the Voicent Gateway Phone Call Setup Wizard to configure the Gateway for your service.

If you don't already have a phone service, let's explain the choices available:

  • VoIP Phone Service. There are many providers, such as CallCentric, Skype, RingCentral, Packet 8, Vonage, Nextiva, ViaTalk, Gradwell, FreshTel, i2Telecom, Rapidvox, Broadvoice, DiamondCard, CallWithUs, and many others.

    Voicent strongly recommends the use of a SIP-based, business-quality VoIP service. Although many providers, such as Skype and CallCentric, offer free services, you will find more professional features, fewer limitations and better connection quality if you choose business-oriented servce levels such as Skype's SkypeConnect or CallCentric's Pay Per Call service or one of its monthly subscription plans.


  • SIP Trunk Service. SIP-based business phone services such as Broadvox, Bandwidth.com, and many others provide large-scale, specialized VoIP phone connections for enterprise users.

  • PBX System that supports IP phone. Almost all major PBX systems, such as Cisco, Avaya, Asterisk, Mitel, Shoretel, Ipitomy, Talkswitch and many more, now support IP phones.

VOIP, Softphone, SIP, and DID defined

  • VoIP stands for Voice Over Internet Protocal. VoIP allows you to use your computer to make telephone calls over the internet. With VoIP you don't need a physical phone line or a physical telephone. All you need is a computer headset and an internet connection.
  • A softphone is a software program that acts as a phone, providing a telephone-like interface you can use to make or receive phone calls. Softphones are typically used with a headset (combination earphone and microphone) or with a USB phone.
  • SIP stands for Session Initiation Protocol. It is a software application standard for VoIP. A SIP phone is one of the most common types of softphones.
  • SIP Termination is a VoIP service feature that allows you to call both local, long distance and international phones and cell phones directly from a SIP softphone. SIP Origination is a feature that allows softphones to receive such calls.
  • DID stands for Direct Inward Dialing Number. The number looks exactly the same as a regular phone number and it allows anyone to call your SIP softphone from a landline or mobile phone.