Getting Started
  • Setup Your Phones
  • Setup Your Voicemail

    General
  • Search This Site
  • FAQs
  • Phone Resources
  • Training Videos
  • Number Porting

    PBX Administration
  • Adding Users
  • Extensions
  • Virtual Receptionist
  • Auto Attendants
  • Conference Bridges
  • Call Groups
  • Call Queues
  • Faxing
  • PBX Settings
  • Other Features

    Troubleshooting
  • Network Help
  • Router Guide
  • Sound Quality
  • Contact Info

    • Bandwidth and VoIP



    Bandwidth can affect your sound quality if there is not enough available or it is being consumed by the computers/phones.

  • Your Broadband internet connection will generally have more download speed than upload speed.

  • Each call uses roughly 80 kilobits (kb not kB) of both upload and download.

  • Remember that computers and other internet devices will lower your available bandwidth.

  • If you are using near the full capacity of your connection, latency may increase and affect sound quality.

  • A good rule is to plan to use only 85% of your connections ability

    Test Your Connection:

    Below are a few links where you can test your bandwidth.

    The result will give you two numbers -- upstream and downstream. Divide the lowest of the 2 numbers by 80.

    This is the number of consistent calls your connection can support.

    Example:



    Take the upload result and divide by 80.

    In this example there would be enough bandwidth for 21 phones      ( 1724 / 80 = 21.55 ).

    However, please remember you should only use 85% of you connection for better quality of service.

    ( 21 * .85 ) = 17.85 or 18 consistent calls can stabily be held by this connection.

    NOTE: This is assuming nothing else on the network is consuming your bandwidth (ie computer traffic)

    PC Pitstop

    Broadband Report

    SpeedTest.Net


    Another test which can help identify if you are having connection issues is the Vocalocity VoIP Test below

    Vocalocity Jitter/Latency Test