It is important to note that all of the features listed are covered under the Open Source licensing; which means you don't pay for them.  Commercial Add-on Licenses are listed at the right and are server based licenses (one time fee).

Whether you decide to deploy a Premise or Cloud PBX, Ambit delivers the same features.

Add-on modules for additional features

Appointment Reminder

High Availability

Call Center Builder

Outbound Call Limiting

Web Callback

Call Center Reporting

  • Queue Traffic
  • Agent Performance
  • Service Levels
  • Many more

Core Features

Unlimited Extensions

  • Hard Handsets (any SIP handset)
  • Soft Phones (Apple, Linux, Microsoft)
  • Virtual Extensions
  • 3 way calling

Ring Groups (Hunt Groups)


  • Numerous Strategies
    • First available
    • least calls
    • round robin
    • etc.
  • IVR Breakout
  • Custom Hold Music


  • Dial by name
  • Global or Departmental

Unlimited Conference Rooms

Paging and Intercom

  • 1 way
  • 2 way
  • Individual Extension
  • Unlimited Zones
  • Can be integrated with legacy overhead systems

Interactive Voice Response Menus (IVR or Auto Attendant)

  • Unlimited IVR levels
  • Customizable Audio
  • Any DTMF sequence (0-9, *, #, and any combination)


  • Voicemail to Email
  • Busy message
  • Unavailable message
  • Temporary message
  • Mini-IVR 0 - 2 options
  • User Administration
  • Per user control over storage

Time Rules

  • Automatically route calls based on date and time rules

Music on Hold

Find me Follow Me

Parking Lot

Busy Lamp Feature (BLF)


  • Inbound and Outbound
  • DTMF and SIP based
  • TIF and PDF Support