ET-207 Amplified Big-Button Telephone
(430-0806)                 Specifications             Faxback Doc. # 14771

Redial capacity:............................................Up to 32 digits
Power requirements:..............................................Phone line
Connector:....................................................U.S.O.C. type
                                                           RJ-11C or RJ-11W
Dialing rate:................................................10 pulses/sec.
Make/Break ratio:.................................................39% / 61%
Inter-digit period:..............................................805 m/sec.
Touch-tone dialing:...........................................Standard DTMF

OPERATING PARAMETERS

The following information is supplied to assist in answering possible
technical questions from your phone company.

Interface:.......................................................Loop start
Ringer:.............................................Standard bridged ringer
                                                20-60Hz sine or square wave
                                                   40-130 volts ring signal
Current:................................................(off hook) 20-80 mA
Resistance:..............................................300 Ohm (off hook)
                                                          100 Ohm (on hook)
Line Voltage:........................................................48 VDC
Temperature:......................................................25C +3/-2
Test Frequency:.....................................................1.0 KHz
Loop Current:..........................................................28mA
Line Input Level:....................................................-15dBm
Line (AC) Impedance:..................................600 Ohms (Dummy Load)
Speaker Impedance:..........................................150 Ohms +/-30%
Artificial Mouth Levels:............................................88dBSPL
                                                    (at a distance of 25mm)

All acoustical measurements were taken with SunLight Telephone Transmission
Analyzer Model 1400 unless otherwise specified.

NOTE:  This phone has Continuous DTMF/Key Following.

Specifications are typical; individual units might vary.  Specifications
are subject to change without notice.


(IR/CS 3/14/96)