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ISDN 8520T Voice/Data Terminal
Hidden/Craft Features
For information on the hidden or craft features, those features that can be done only by qualified
service personnel, use the procedures listed for the 8510T terminal in the
ISDN Terminals Instal-
lation and Tests Manual
, Issue 3, 555-021-101. The section titled ISDN 8500-Series T-Interface
Terminals in that manual contains information on completing the following tasks for the ISDN
8510T voice/data terminal (the procedures for these tasks can also be used for the 8520T):
How to enable or disable the listen-only speaker or the speakerphone
How to enable Selectable Ring Preference
How to clear all parameters stored in memory
How to clear a user’s password
How to clear a password known by the system administrator
How to send or disable Button Number 11
Power Failure Operation
The 8520T cannot be used as an emergency station during power failure transfer conditions.
FCC Registration
The 8520T voice/data terminal is FCC registered as a Class A terminal.
Hearing Aid Compatible
This voice/data terminal is compatible with the inductively coupled hearing aids as required by the
FCC.
8520T Equipment PECs and COMCODES
The 8520T voice/data terminal and optional components can be ordered with the following Price
Element Codes (PECs) and COMCODES:
ISDN 8520T Voice Terminal
PEC: 3116-001 (AT&T Black=COL09; AT&T White=COL10)
COMCODE: AT&T Black=106906431; AT&T White=106906449
3-441