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Reminder: Intercampus Telephone Calling Now Requires 12-Digit Dialing

See the OUS extension- to-phone number conversion table at the conclusion of this article

Dave Barta
Manager, Telecom Services
dbarta@uoregon.edu

Since the new OUS Telecom System 12-digit dial plan went into effect on July 1, UO phone system users have no longer been able to call other OUS Institutions by dialing only five digits.

To call someone at PSU, for example, you now must dial 9-1-503-725-xxxx instead of 5-xxxx. However, campus users can still use the five-digit plan to call within the UO campus and can still place calls to other OUS institutions without entering long distance authorization codes.

Why the Change?

This change is the result of increased use of telephone numbers throughout OUS. In 1989 we acquired numbers for all the campuses comprising a unified numbering plan with no duplicate five-digit extensions across the system.

But after 14 years, growth has caused some schools to expand beyond their original number allocations, causing duplicate five-digit extensions within the system and signalling the end of the OUS-wide five-digit plan. This is similar to the changes that forced the entire Portland local calling area to move to ten-digit dialing for all calls.

Other impacts of the change:

This 12-digit dialing change can affect more than just the way you place long distance calls to other OUS institutions.

Speed dialing lists will be reprogrammed by Telecom Services, but you may have to reprogram certain features (such as auto dial buttons and voice mail out-calling) yourself. Sending and receiving Audix voicemail messages from other campuses has also changed.

Audix Addressing

Addressing messages to AUDIX subscribers within an institution will still use five digits and will provide name confirmation of the addressee.

Addressing messages to and receiving message from AUDIX subscribers at different institutions will have the following requirements and functions:

Resources

You'll find programming assistance, answers to frequently asked questions, and dialing instructions online at http://telcom.uoregon.edu/12-digit-dialing.htm A number-finding tool is also available at http://inoc.ous.orst.edu/dialplan/ We recommend bookmarking this website, as well as saving the conversion table below for future reference:

OUS Extension-Phone Number Conversion Table
(Sorted by Extension Number)
5-digit extension 11-digit phone number Campus
1-4000 to 1-4999 1-503-751-4000 to 4999

WOU

1-5000 to 1-5999 1-541-851-5000 to 5999
OIT
1-6000 to 1-6999 1-541-201-6000 to 6999
SOU
1-7000 to 1-8999 1-503-471-7000 to 8999 PSU
2-3000 to 2-4499 1-541-962-3000 to 4499 EOU
2-6000 to 2-8999 1-541-552-6000 to 8999 SOU
3-0000 to 3-9999 1-541-713-0000 to 9999 OSU
4-0000 to 4-9999 1-503-494-0000 to 9999 OHSU
5-0000 to 5-1999 1-541-885-0000 to 1999 OIT
5-2000 to 5-9999 1-503-725-2000 to 9999 PSU
6-0000 to 6-9999 1-541-346-0000 to 9999 UO
7-0000 to 7-0099 1-541-737-0000 to 0099

OSU

7-0100 to 7-0399 1-541-867-0100 to 0449 OSU-HMSC
7-0450 to 7-0874 1-541-737-0450 to 0874 OSU
7-0875 to 7-0899 1-541-867-0875 to 0899

OSU - HMSC

7-0900 to 7-9999 1-541-737-0900 to 9999

OSU

8-0000 to 8-7999 1-503-418-0000 to 7999 OHSU
8-8000 to 8-9799 1-503-838-8000 to 9799 WOU

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