The Most Complete Global Phone System Ever Created

Over 200 communication features wherever you, your workers, or devices are, at any time.

PBX Phone System

A virtual receptionist at your service; play custom greeting files, text-to-speech and present options to callers to connect to call queues, directories, voicemail and more with advanced scheduling options.

Client Phone Apps

Download and install the Circuit ID softphone app for Android Smartphones, Android Tablets, Apple iPhones, Apple Tablets, Windows PCs & Mac computers.


Global PSTN & VoIP Conferencing highly configurable with administrative realtime monitoring features. Add-on call recording to store recorded conferences in the cloud.

Call Center

Leverage intelligent call queues to route calls to agents based on customized ring strategies such as ring-all. Even more, assign agents to different levels and tiers to route calls based on priority.

Realtime Reporting & Monitoring

Understand the trends of your business and ensure callers are receiving the highest quality of service with call monitoring and reports. Access detailed call analysis reports at the touch of your fingertips.


Powerful LTE Advanced Network; ideal for for video calls, downloads, streaming and more. Talk, Text & Data only available in the US that may include Roaming in Mexico and Canada.


There are multiple ways to send and receive SMS messages with Circuit ID that includes smartphones and tablets, our online management portal, via email, and/or through our API.


No more busy tones with our modern eFax capabilities! Get unlimited fax lines with a local number, or transfer your number to Circuit ID. Receive and send faxes via email and online. Only available in the US.

SIP Trunking

Certified global origination and termination for Skype for Business, Asterisk, FreeSWITCH, Cisco, FreePBX and many more. Use our intelligent routing features to interconnect your server to our PBX.

Office 365 Integration

Integrate Office 365 with just a few clicks to sync your users and groups, enable single sign-on, user and license management including password resets and more.

Communicate via Mac or PC, Tablets & Mobile Devices

Circuit ID™ communicates with all your devices in realtime simulataneously.