PSU Phones: Campus Telephone Guide


This article includes a telephone guide and dialing instructions.


Dialing Instructions


  • From on-campus, dial 0 or 5-5000
  • From off-campus, dial (603) 535-5000

Voice-Activated Directory

  • From on-campus, dial 5-3333
  • From off-campus, dial (603) 535-3333



Dial the 5 digit extension

NH, Off-Campus

Starting October 24th, 2021, you must use the area code on all in-state, off-campus calls.  Seven-digit in-state dialing will not be connected as dialed. Dial as outlined below.

Dial 6 + 603 + 7 digit number*

Long distance outside of NH

Dial 6 + 1 + area code + 7 digit number *


Dial 6 + 011 + country code + city code + local number *

Toll-free numbers

Dial 6 + 1 + 8xx + 7 digit number

* Depending on your service type, toll calls may produce a three burst of tone, followed by dial tone, indicating that a PBN authorization code is necessary.



Further Readings

Avaya Voicemail Systems

Voicemail: How to Set Voice Mail Greeting When Leaving for Vacation or Returning from Vacation


Need additional help?

Visit the Technology Help Desk Support page to locate your local campus contact information or to submit an online technology support request.  For password issues you must call or visit the Help Desk in person.  

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Article ID: 2482
Fri 10/2/20 5:04 PM
Fri 5/12/23 4:49 PM
Applicable Institution(s):
Plymouth State University (PSU)