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VoIP PBX Phone System

Loaded with great IP PBX features and capable of supporting up to 5,000 SIP extensions with 1,000 concurrent SIP calls.

  • Mobilized Work Force
  • Easily Managed
  • Automatic Provisioning
  • Excellent Support

Class 5 SIP SoftSwitch

PBXRealtime is a fully partitioned, true multi-tenant class5 Softswitch that can provide the capacity and 99.999% uptime you need.

  • Fully Redundant
  • Least Cost Routing
  • Patitioned Multi-Tenant
  • Tenant and User Portals

PBXRealtime VoIP Server

Designed for 99% of Business VoIP service. The VoIP Server handles 600 SIP extensions with 150 active SIP calls.

  • Intel Celeron or i5 CPU
  • 4G RAM / 64G SSD Storage
  • Rack Mountable
  • Software Pre Installed

Fault Tolerant

We take VoIP Service uptime Seriosly! Eliminate failure points by making each VoIP server self sufficeint. Only the UI is shared.

  • Fully Redundant
  • Hot Standby
  • Load Balancing
  • Achieve 99.999% Uptime
Built with service in mind
Easily Manage VoIP Phones

Automatic Device Discovery

PBXRealtime can automatically detect the presence of new VoIP phones; build SIP extensions for the new phones and program the phones without the need to manually provision each phone. Just put the phone on the network and click the discover option. PBXRealtime can provision up to 500 VoIP phones in minutes.

If you prefer to work like everyone else, you still have the ability to build an extension, create a profile for the device, find the phone`s IP address, program the phone to read the profile and spend 10 to 20 minutes per phone but we think you will prefer our Automatic Device Discovery.


  • Auto Attendant
  • Call Queuing
  • Android/IOS Support
  • Time of Day
  • Voicemail/Fax to Email

PBXRealtime is a U.S. Based Company

PBXRealtime is located in Edmond, OK. and does not outsource support services to other countries. We believe that Offering World Class service requires World Class people found right here in the USA. Our VoIP PBX System is based on Asterisk Real Time and can be downloaded and used for Free!

VoIP Technology, Proven Results.

We don`t just create VoIP software and hope it works. We preform brutal performance tests in our labs. When we think we are ready to deploy, we actually deploy PBXRealtime in our own office first! If we can't use it, we wouldn`t expect you to either!

Understanding the Industry

PBXRealtime was designed by engineers with experience dating back to the late 80s; operating and writing software that works with: DSC, Northern Telecom, Siemens and Harris class 4 and 5 carrier switches of old, as well as Toshiba, Mitel, Nortel and Panasonic class 3 systems. We know what fault tolerance is to telecommunications. We know how IP PBX systems should operate and we expect nothing less than 99.999% uptime.