AT&T Not Availab IP Phone User Manual

Technical Description
Physical Dimension and Weight
The CALLMASTER voice terminal can only be desk-mounted; it
be wall-mounted.
The CALLMASTER voice terminal measures
8.5 inches deep
11.0 inches wide
4.25 lbs
Power Requirements
The CALLMASTER voice terminal is line powered from the PBX switch.
The CALLMASTER will operate in voltage ranges of 42.5 to 56.5 volts.
See the Installation section for operating range requirements.
NOTE: If adjunct equipment such as an S201A Speakerphone is
connected to the CALLMASTER voice terminal’s Adjunct jack, it must be
auxiliary powered.
Environmental Requirements
The CALLMASTER voice terminal can operate in temperatures ranging
from 40 to 120 degrees F (4 to 48 degrees C) and relative humidity
ranging from 5 to 95 percent.
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