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  Business Services | Personal & Student Services
Office of the CIO  |  IT Strategic Plan

Long Micro Form
Short Micro Forms

Campus Dialing Instructions and
Important Numbers for Business Customers

When Calling:

What is/are:


Calling University Police – Columbus Campus

  • Emergency Calls -
    • Dial ------------------------------------------------ 9-1-1*
  • Non-emergency Calls -
    • Dial ----------------------------------------------- 2-2121

*NOTE: Sometimes the emergency number 911 is dialed accidentally when trying to reach a number off campus. If you dial 9-1-1 by mistake, please stay on the line and explain to the dispatcher that no emergency exists.

Calling Campus Telephone Numbers (Five-digit Dialing)

  • Administrative Offices and College Departments -
    • Dial ---------------------------- 2, 4, 7 or 8 + last 4 digits
  • OSU Family/Graduate/Professional Housing Areas -
    • Dial ---------------------------------------- 8 + last 4 digits
  • OSU Residence Halls -
    • Dial ---------------------------------------- 8 + last 4 digits
  • University Medical Center -
    • Dial ---------------------------------- 3 or 6 + last 4 digits

Calling OSU Regional Campuses and
Off-campus Research Facilities
(Five-digit Dialing)

  • Agricultural Technical Institute -
    • Campus Operator Dial --------------------------- 2-7115
    • If you know the extension -------------- 7 + last 4 digits
    • Wooster Residence Halls -------------- 7 + last 4 digits
  • Ohio Agricultural Research and Development Center -
    • Campus Operator Dial --------------------------- 2-0861
    • If you know the extension --------- 5 + 2 + last 3 digits OR 5 + 3 + last 3 digits
    • Wooster Residence Halls -------------- 7 + last 4 digits
  • Ohio State Lima -
    • Campus Operator Dial --------------------------- 2-0251
    • If you know the extension --------- 5 + 8 + last 3 digits
  • Ohio State Mansfield -
    • Campus Operator Dial --------------------------- 2-9108
    • If you know the extension --------- 5 + 4 + last 3 digits
    • Mansfield Residence Halls ------------- 7 + last 4 digits
  • Ohio State Marion -
    • Campus Operator Dial --------------------------- 2-9133
    • If you know the extension --------- 5 + 6 + last 3 digits
  • Ohio State Newark -
    • Campus Operator Dial --------------------------- 2-4094
    • If you know the extension --------- 5 + 9 + last 3 digits
    • Newark Residence Halls --------------- 4 + last 4 digits
  • Stone Laboratory -
    • Columbus ------------------------------------------- 2-8949
    • Put-in-Bay ------------------------------------------ 7-6500

 

Calling Local, Off Campus Numbers (8¢ per call fee applies)

  • Dial -------------------------------------- 9 + 7-digit number

 

Calling Local Plus Numbers (740 Area Code)

  • From Unrestricted Phones
    • Dial ----------------------- 9 + 1 + 740 + 7-digit Number
  • Using a UNITS Auth Code

 

Calling Toll Free Numbers (800, 888, 866 and 877)

  • Dial ----------------------- 9 + 1 + 10-digit toll free number

 

Calling Domestic and International Long Distance Numbers

Calling Directory Assistance (Campus, Local and Long Distance)

  • Campus Directory Information -
    • Dial ------------------------------------------- 2-6446 or 0
    • TDD for Hearing Impaired Dial ---------------- 2-0422
  • Local and Domestic Long Distance Information (INFONXX)* -
    • From Unrestricted Campus Phones Dial -- 9 + 411*
    • Using a UNITS Auth Code
      • 1) Dial 1, wait for 3 beeps and dial tone
      • 2) Enter your 6-digit Auth Code and wait for tone,
      • 3) For Local Information Dial 411*
    • OR
      • 3) For Long Distance Information enter the Area Code + 555-1212*
  • International Information (AT&T)** -
    • Dial ------------------------------------------- 9 + 0 + 0**

*NOTE: INFONXX charges a $1.00 fee for local and domestic long distance directory assistance calls.

**NOTE: You must have an unrestricted campus phone to call the AT&T operator. AT&T charges a fee (approx. $6.95) for directory/operator assistance, which must be paid with a personal credit or calling card.

 

Calling an Operator (Campus, Local and Long Distance)

  • Campus Operators
    • Dial ------------------------------------------- 2-6446 or 0
    • TDD for Hearing Impaired Dial ---------------- 2-0422
  • Local Columbus Operator (Time Warner)** ---------------------- 9 + 0
  • Domestic and International
    • Operator (AT&T)** ---------------------------- 9 + 0 + 0

**NOTE: You must have an unrestricted campus phone to call an AT&T or Time Warner operator. AT&T and Time Warner may charge a fee for operator assistance, which must be paid with a personal credit or calling card.

Campus Telephone Number Prefixes

University-owned telephone prefixes for the Columbus Campus are 292-xxxx, 293-xxxx, 247-xxxx and 688-xxxx. These prefixes are Direct Inward Dial (DID) numbers, which means they can be dialed directly from off campus telephones. Additionally, campus telephone numbers that begin with 514-xxxx (new April 1, 2005) are internal campus extensions only and cannot be called directly from an off campus phone. These internal extension numbers can only be dialed directly from other campus telephones using five-digit dialing (4-xxxx).

 

Five-digit Dialing

The university utilizes five-digit dialing when placing calls from one university telephone to another. For example, when calling a residence hall room with the prefix of “688” from an office phone, you would dial “8” plus the last four digits of the telephone number. Five-digit dialing is also used when calling OSU Regional Campuses. There is no charge for placing “campus to campus” calls (five-digit dialing). However, charges may apply when placing other types of calls from campus telephones. These charges are denoted in the appropriate sections.

 

Distinctive Ringing and Other Audible Tones

Distinctive Ringing Indicates whether an incoming call is coming from a campus or off campus telephone. “One long ring” indicates the incoming call is coming from another campus phone. “One long and one short ring” indicates the incoming call is coming from an off campus phone.*

Dial Tone – Is a continuous tone indicating dialing may begin.

Busy Signal – Is a repeated buzz tone indicating the number you called is in use or “busy.”

Fast Busy – Is a repeated buzz tone, about twice as fast as a normal busy signal, indicating one of the following scenarios: all circuits are busy, a restricted operation was attempted, or improper use of your telephone.

Activation Tones – Hearing “three beeps followed by a steady dial tone” indicates you can proceed with activating a feature or entering your Authorization Code when placing a long distance call.

Completion Tones – Hearing “beeps followed by silence” confirms that you successfully activated or deactivated a telephone feature.

Ring Again Notification – A cycle of “one long and two short rings” indicates a busy line is now free.*

*NOTE: Distinctive Ringing is a standard feature on all UNITS business telephones unless otherwise requested. Distinctive Ringing and Ring Again may cause interference with proper use of fax machines, answering machines and modems and may need to be removed from these type of lines.

 

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