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The Office of Technology Services (OTS) manages Illinois Tech agreement with the , a partnership between Internet2, Clearspan (formerly Mitel / Aastra) and CenturyLink, as the university's telecommunications system. The Internet2 Clearspan solution is a single, highly reliable, cloud-based voice over internet protocol (VoIP) system that serves all of Illinois Tech’s campuses and provides access to the telephone service from off-campus.  This system is integrated with Microsoft Teams to provide access from mobile devices and computers, eliminating the requirement for a traditional telephone set.

For People With Disabilities

If anyone with disabilities needs assistance with telephones or voicemail, please contact the OTS Support Desk.
Email: supportdesk@iit.edu
Phone: 312.567.3375 (on campus x7Desk)

Mobile Devices and Softphones

Microsoft Teams provides the functionality to place and receive calls on your Illinois Tech extension.  Teams is available in three forms: (1) A desktop client; (2) A mobile client for iPhone and Android; and (3) a web-based application.  While all three application can be used simultaneously, OTS highly recommends using the mobile client as the primary method of placing and receiving calls. This is due to the ease of use as the mobile application provides a much more natural telephone experience.

If you choose to use the Teams client or web application on your PC/Mac, you should to purchase a headset for your laptop/desktop. The recommended headset is the Logitech USB Headset H390 with Noise Cancelling Mic available from CDW in BuyIt.

Teams Voice FAQs

• Can I log into Teams on multiple devices simultaneously?
  • Yes.  Calls will ring on all devices where you are logged in.
• How will the mobile app affect my data usage/phone bill?
  • Please use wifi when using the mobile app on your phone unless your plan has unlimited data.
• What happens when I sign out of Teams? Where do my phone calls go?
  • Your calls go to voicemail.
• I closed Teams, but my phone still rings after hours. How do I stop the incoming phone calls?
  • You can adjust your notifications in the Teams app to only notify you during working hours.

Desk/Wall Phones

You may also add a physical telephone set if desired through BuyIt. The basic telephone is the Mitel 6863i. You may also upgrade to the Mitel 6867i for an larger fee. In addition, you may add an expansion module to a 6867i. More information on these models and the prices are listed below.

Mitel 6863i

Mitel 6867i

Mitel Expansion Module

Polycom Trio 8500

Desk Phone Installation FAQs

Telephones connect via wired ethernet and require power over ethernet (PoE). If you have a PC, you need to connect it through the phone (in series). If you wish to use a separate wall jack for the phone and PC, there is a fee for the port activation.

• The phone is not powering on.
  • The ethernet cable is connected to the wrong port on the back of the phone.
    • Plug the cable into the correct port on the back of the phone.
  • The Phone is connected to a non-PoE network port.
    • Contact the Support Desk with the information about the outlet. The Support Desk will have Network Services migrate the port to PoE.
  • Plug the phone into an ethernet port (where you would plug in your PC or printer).
• The phone is not prompting for a Device ID.
  • Power cycle the phone by disconnecting the ethernet cable, wait for 30 seconds, then reconnect the ethernet cable. If the issue persists, the phone needs to be factory defaulted. Please contact the Support Desk to have the vendor reset the phone.
• The Device ID is not accepted.
  • The extension has not been migrated from trunk users profile to VoIP profile.
    • Contact the Support Desk, we will validate if this number has been migrated to VoIP.
• The phone was registered, but when you lift the receiver, you get a busy signal.
  • The phone was assigned the wrong profile.
    • Contact the Support Desk to have the profile changed.
  • The migration from trunk user profile to VoIP profile is incomplete.
    • Contact the Support Desk to confirm the migration was completed.

To order telephones, voice mail, additional features, special programming, moves, adds, or changes, contact the Support Desk.

For instructions, please see the user guide section.