Installation guide

TROUBLE ON ONE TELEPHONE
Hearing
Symptom:
User with off-premises telephone has trouble hearing.
Possible Cause
Recommended Action
1.
Off-premises telephone may be 1. Switch the suspect off-premises telephone
defective.
with a basic Touch-Tone or rotary telephone
known to be working properly. Place an
outside call. If you can hear clearly, replace
the suspect off-premises telephone.
2.
Off-Premises Telephone
2.
At the control unit location, unplug the cord
Interface may be defective. that connects the Off-Premises Telephone
Interface to a jack in a Voice Terminal Module.
Plug a voice terminal into the jack on the
module. Place an outside call. If hearing is
no longer a problem, replace the Off-Premises
Telephone Interface.
3.
Line from the central office to
3.
Contact the local telephone company
the off-premises telephone representative about upgrading the line
should be upgraded. between the central office and the off-
premises telephone. Too much sound is
being lost on the line. Notify the
representative of these specifications for the
off-premises telephones:
●
Standard jacks: USOC code SAY
●
Facility interface code: FIC OL 13C
A3-4