Washington University IT Telecommunication Services (Danforth)

Washington University IT VoIP (Voice Over Internet Protocol) delivers voice communication over the internet. VoIP supports traditional telephone features, but also provides increased functionality, like the ability to listen to voicemail messages through your Microsoft Outlook email inbox, or have calls to your work phone simultaneously ring on your cell phone.

Using VoIP                

VoIP Quick Reference Guide (PDF)


To Call Dial
Washington University Police Department 5-5555
Danforth campus extensions (935 or 933 prefix) 5-xxxx or 3-xxxx
Danforth campus operators & phone number information 5-5000 or 0
Local calls area code (if required) + local number

(no need to dial 9 for an outside line)

Domestic long distance calls area code + number

(no need to dial 9 + 1 or authorization code)

International dialing 011 + country code + city code + number + authorization code
Medical Center Operators 362-5000
Medical Center Numbers Prefix + number
Toll free 8xx-xxx-xxxx

(no need to dial 9 + 1)

Voice mail access 5-3300 or 935-3300 (off campus)
Danforth Campus Telecommunication Services (service requests) 5-5005

Feature  Instruction
Call Forwarding (Busy, Don’t Answer and All Calls) To activate: 

Press Call Forwarding Key (left top softkey)

Enter forward to number in field.

Check “On” box to activate.

Press the “Save” button.


To deactivate: 

Press Call Forward Key (left top softkey)

“Uncheck” the On box.

Press the “Save” button.

Last Number Redial Press the Call History key (to the right of the keypad)
Call History Log Press the top function key (to the right of the keypad).  Review call log.  You can place a call from the history log by navigating to the call and pressing the selection button (middle of navigation key).
Transfer With an active call, press the transfer key, followed by the phone number.  Either hang up and press the red handset key to hang up.  Parties will be connected.
Conference With active call, press the conference key, dial the first party, press the conference key again and dial additional party.  Continue process until all parties are on the call.
To make a call Press L1 or L2, or the speaker/headset key, dial the number.
To release a call Hang up handset or press the key with the red telephone.
Mute Press the key with the strikethrough of a microphone.

  • Long-distance domestic calls may be completed by dialing area code + phone number. An authorization code is not required to complete domestic long distance calls.  International calls will require the use of an authorization code to complete the call.  To complete international calls dial 011 + country code + city code + number + authorization code.
  • To request an authorization code, submit ServiceNow request to Telecommunication Services.

Initial Setup – Passcode and Personalized Name

To change your passcode from the default of 147369#.

  1. From your desk phone press the Voicemail key (upper left hand corner of top softkeys).
  2. When prompted enter default voice portal passcode of 147369#.
  3. Follow prompts to change your passcode. New passcode cannot be your extension or phone number, reversed phone number, cannot contain 5 or more repeated digits, cannot contain more than 3 sequentially ascending or descending digits, and must be at least 6 characters and no more than 12 characters.
  4. If calling from any other Danforth campus phone:
    1. Dial 5-3300 or from off campus dial 935-3300.
    2. Enter mailbox ID (usually your 5-digit phone number) followed by the pound key.
    3. Enter default voice portal passcode of 147369#.
    4. Follow prompts to change your passcode.

To record your Personalized Name announcement:

  1. Immediately after setting up your passcode you will be prompted to record your Personalized Name. Follow system prompts.
Retrieving Messages

To retrieve voice mail messages:

  1. From your desk phone press the Voicemail key (upper left hand corner of top softkeys). (If calling in from any other Danforth campus phone, dial 5-3300.  From off campus dial 935-3300.)
  2. When prompted enter passcode.
  3. Press 1 to access voice messages.
  4. If requested, you will also receive a notification in your email that you have received a voice mail. The notification will contain a .wav file that you can listen to from your email.  You can delete the email message but you must also delete the message from voice mail.

Busy Greeting:  Greeting callers will hear if you are on another call.

No Answer Greeting:  Greeting callers will hear when you do not answer your phone.

Extended Away Greeting:  Set a greeting for extended absences.  You must activate before you leave and deactivate when you return.  NOTE:  The default is that your voice mail box will NOT collect messages while Extended Away Greeting is activated.  Must change the default if you would like to collect messages.
To Record Greetings:

  1. Busy – log on, press 2 and follow system prompts.
  2. No Answer – log on, press 3 and follow system prompts.
  3. Extended away greeting – log on, press 4 and follow system prompts.

Telecommunication Services can provide Paetec/Windstream in-bound toll-free dialing. All call detail will appear on the department’s monthly on-line Washington University IT statement. To request a toll-free number, contact your departmental telecommunications liaison.

Call Center Services (Automatic Call Distribution) offer the ability to spread calls evenly among customer service representatives. With call center applications you can:

  • Process incoming calls more effectively
  • Reduce or eliminate abandoned calls (hang ups) by providing queue or announcements
  • Provide customers with a single telephone number
  • Determine how calls are distributed
  • Get a real time view of phone traffic and agent performance
  • Receive reports that include but not limited to:
    • Call traffic statistics
    • Total number of calls answered
    • Number of calls abandoned (hang ups)
    • Agent statistics
View/Download the Quick Guide to using ACD.

To establish a call center or make changes to an existing center, please send a request to telecom@wustl.edu. Charges for call center applications are based upon the design of the group.

AT Conference Service/Bridge Service

AT Conference is an external conference service that can be used 24/7.  This service allows conferees to access a conference bridge by dialing a toll-free number.  Each conferee is automatically added to the conference.  AT Conference also offers presenter mode, recording capabilities and over 50 participant slots.  To schedule an AT conference call, contact the campus operator at 5-5000 Monday through Friday 8:30 am to 5:00 pm.

Medical School faculty and staff may also utilize the conference services available through TFC at 362-2888.


To request service for moves, adds, or changes, the school or departmental Telecom liaison should submit a request in ServiceNow.

You may also email to telecom@wustl.edu. Large quantities of moves or installs are best provided in an Excel spreadsheet with the appropriate contact and billing information. Spreadsheet should be sent as an attachment with the email request. Forms are available for requesting voice mail, authorization codes and digital telephone configurations.  Completed forms should be included with the email request.

Please allow 10 working days to complete orders with the exception of summer months. Three weeks should be allowed during summer months. If work is to be completed in less than 10 to 15 days, expedite fee/rates will apply.

Contact Telecommunication Services at 5-5005 or telecom@wustl.edu.

Contact Telecommunications Services at 5-5005 or telecom@wustl.edu to request forms.

Danforth Campus Operators

You may contact Danforth campus operators by dialing (314) 935-5000, 5-5000 or 0. The operators are available Monday through Friday 8:00 am to 5:00 pm, except University holidays, to provide Danforth campus telephone number information, international country/city code information, assistance with dialing instructions for long distance or international numbers, and to schedule AT Conference calls.  AT Conference calls can occur 24/7.

Medical School Operators

For Medical School information and operators, please dial (314) 362-5000.  Medical School faculty and staff may also utilize the conference service available through TFC at 362-2888. 

Online Directories

For Washington University listings, visit the university Web directory, and enter appropriate search information.

For off-campus listings, visit the university web list of National Telephone and Address Directories.

Switchboard.com is an additional on-line source of number information.​

  • Cannot hear phone ringing – Check to make sure the ringer is on maximum volume.
  • No dial tone – Unplug the phone from the wall jack and plug it back in.
  • No dial tone – Check to make sure the wires running from the handset to the telephone and from the telephone to the jack are plugged in securely.
  • Calls go straight to voice mail instead of ringing on set – Is the handset cradled properly? Is call forward all calls activated?

For telephone or voice mail issues or questions, please call Telecommunication Services at 5-5005 or email telecom@wustl.edu.

  Some issues may be resolved over the telephone. Hardware problems may require that a technician be dispatched. Be prepared to provide telephone or voice mail box number, location (building and room), contact name, contact number, user name and user number.

Please allow 24 hours for resolution of trouble tickets.


Washington University IT – Telecommunication Services
North Campus, 700 Rosedale Avenue
St. Louis, MO 63112
(314) 935-5005