VOIP Telephone System

Service Information

Cook County is undergoing a multi-year project to modernize our telephones and telecommunications infrastructure. Most traditional landline phones across the County will be replaced with a similar Voice Over Internet Protocol (VOIP) enabled phone. 


The link below will take you to the Unified Communications Self Care Portal. You can log in to the portal to change phone settings and get more information. This link will only work within the County network. 

Unified Communications Self Care Portal



Voicemail Quick Reference Guide

 Phone Quick Reference Guide - 7800 Series

 VOIP / Unified Communications Training

Getting Help  

If you're experiencing problems or need assistance, please call (312) 603-1390. 


Why is VOIP Important for Cook County?

  • It streamlines the County’s telecommunications operating model.
  • It allows us to consolidate our telecommunications and data infrastructure, instead of using separate lines and switches for each — saving the County money.

What is Voice over Internet Protocol (VoIP)? 

Voice over Internet Protocol (VoIP) is a method for using a group of tools to deliver audio or multimedia communications over Internet networks. Broadband phone service, for example, is a type of VoIP communication. VoIP can be used for audio, video, text messages or even faxing.  The user experience of making a phone call via VoIP is the same as any other type of call. 

While the buttons and operation of the new phones will be similar, the new phones will have enhanced features for consideration. For instance, voicemail can be integrated with County email and a single phone number can ringing both at your desk and your cell. Before your phones are replaced, instructors will lead training for staff and provide reference guides and additional details regarding the new phones.