Telecommunications
E-100 GLOVER
FORT COLLINS, CO 80523
(970) 491-5881    FAX: (970) 491-2179
Student Services
Caller ID Service Now Working!

Effective February 27, 2003, CSU Telecommunications enabled Caller ID service on all Residence Hall and Apartment phone lines at Colorado State University. Caller ID information now will appear on your phone's Caller ID display. There is no additional charge for this service.

If you purchase Caller ID equipment, it will work as soon as you plug it in. Caller ID equipment available at retail stores will work, as Telecommunications uses an industry-standard DMS-100 telephone switching system to serve the University.

If you have optional Call Waiting service, Caller ID will be transmitted after the first Call Waiting tone, but will display only on newer "Call Waiting Caller ID" phones. (You may notice a short "chirp" at the end of the Call Waiting tone. This is a signal sent by the central office to determine whether your phone supports Call Waiting Caller ID.)

If you have optional Voice Mail service, a new Visual Message Waiting Indicator signal is being sent to your phone when someone leaves you Voice Mail. In addition to the normal stutter dial tone indication, you would see a message waiting light or icon displayed -- only if your phone is equipped with a Visual Message Waiting Indicator. (Alternatively, it may be called a CLASS* Message Waiting Indicator.)

To block your number and name from appearing on someone else's Caller ID, dial *67 plus the number you are calling (for example, *67 + 5-1234, or *67 + 8-234-5678). Your call will appear as ANONYMOUS or PRIVATE on the called party's Caller ID display for this call only. (Please note that anonymous calls still can be traced by the called party, if they hang up and dial a new call to *57 -- the Call Trace Code.)

To prevent anonymous callers from ringing your phone, dial *77. A recorded announcement will say, "Your Call Screen service is now on." Thereafter, every anonymous call to your phone will be blocked by an announcement that says, "The phone you are calling does not accept anonymous calls from phones which block their Caller ID. To call this phone, you must redial your call by dialing *82 plus the called number. For only this call, your name and number will be displayed." (Please note that you still will receive calls from UNKNOWN or OUT OF AREA off-campus callers. Technically, we are unable to block these calls.)

To allow anonymous callers to ring your phone, dial *87. A recorded announcement will say, "Your Call Screen service is now off."

Questions may be directed to CSU Telecommunications at (970) 491-5881.

*CLASS is the acronym for Custom Local Area Signaling Services, a suite of telecommunications industry technologies that use the calling phone number to enable additional features such as Caller ID, Anonymous Call Rejection, and *57 Call Trace.

. .

Back to Student Feature Guide

Back to Telecommunications