Voice Conferencing | Office of Information Technology

Voice Conferencing

Last Updated: 09/06/2016

CU-Boulder Provided Services

Conference calling with a Cisco VoIP phone

  1. While on an active call (not on hold) press the Conference button - the active party is placed on hold. 
  2. Call the second party. 
  3. When the second party ansers, press the Conference button again to join all parties.
  4. Repeat these steps if you wish to add more people to the conference call. 

As the UCB campus is converted from the AVAYA phone system to the new Cisco phone system, your existing conference phone may be impacted as follows:

If your existing conference phone is Analog:

  • Option 1: You can keep your Analog conference phone and it will be moved from the AVAYA Phone System to the Cisco Phone System.
  • Option 2: You can replace your Analog conference phone with IP conference phone on Cisco (see info below) – your department will need to purchase the new IP conference phone.

If your existing conference phone is Digital (not IP – they have features buttons, such as transfer, conference, etc., from the Avaya system):

  • Your only option is to replace your existing Digital conference phone with IP conference phone (see info below) – your department needs to purchase new IP conference phone.

Supported Cisco VoIP Conference Phones

Conference calling on a Single Line Avaya Desk or Wall phone set

Single line Avaya desk or wall phones allow for conference calls of up to 3 parties. To add a third party to a call:

  1. Flash the switch hook or press flash.
  2. You will receive dial tone.
  3. Present caller is put on hold.
  4. Dial number of new party and wait for answer.
  5. Once the new party answers, you may talk privately before adding them to the conference call.
  6. Flash the switch hook or press flash.
  7. The third party is connected.
  8. If you do not receive an answer or the number is busy, hang up the handset and wait for the telephone to ring to return to the caller on hold.
  9. To Drop the Last Party Added to a Conference, press Flash.
  10. You will remain connected to the original party.

Conferencing on a Multi-Line Avaya 8410 or 8434 Phone

Single line Avaya desk or wall phones allow for conference calls of up to 6 parties. To add another party to a call:

  1. While on the call press the CONF button
  2. You will receive dial tone.
  3. The present call is put on hold.
  4. Dial the number of the person you wish to conference with and wait for them to answer.
  5. Once they answer, press the CONF button again.
  6. Repeat for up to a total of 6 parties.
  7. To drop a call added to the conference, press the DROP button and this will drop callers in the    reverse order that they were added.


There is no direct cost for these services to you or your department.

*Note: Long distance services have an associated cost.

Who can get it

Faculty, staff, and IT partners.

How to get it

If you are not sure which voice conferencing option is best for you, please call or email the IT Service Center (303-735-4357 or 5-HELP from an on-campus phone).

Additional Conferencing Solutions

Vendor Solutions

OIT has partnered with CenturyLink to provide voice, video, and web conferencing at discounted rates.