CUMC Telecommunications - Other Services

Authorization (TRAC) Code
To request an authorization code (necessary for making long distance calls), you will need to submit an Authorization Request Code form. In order to obtain the form, please contact us at 305-7777 or send an email to cumc-telecom@columbia.edu.

Polycom Conference Phone
To reserve the Polycom Conference Phone, contact the Telecommunications office at cumc-telecom@columbia.edu or 305-7777. Please ensure that the area where the conference is taking place has an analog (single line telephone) line. The polycom is not compatible with the multiline telephones.

AT&T Reservationless Conference Account
Once the reservation less account has been established, it can be used anytime to set up a conference call.  An 800 number will be provided, and is given out to all of the conference participants.   For further details, please contact us at 305-7777.

Telephone Directory Information
The online Columbia Directory at: https://directory.columbia.edu/people/
Information on print directories can also be found via the above web site.

How to Change Directory Information
Please visit https://directory.columbia.edu/help/update_information.html for complete instructions on changing directory information.

Campus Dialing Plans

IMPORTANT: As of January 14th, 2012, internal calls to phone and fax numbers will require dialing the full 7 digits. Dialing using only the 5 digit extension will no longer work except for emergency numbers listed in the left column of this site.

Please click here to download a PDF copy of a brochure listing all extension changes and emergency numbers.