Model 3520 Modem-On-Hold Tester: Key Features

Stand-alone system combining a 486-100 controller, a CO line simulator, and a V.92 Modem-On-Hold tester in one package. Fully programmable FSK signal generator (mark and space level, frequency and duration) and messages allows complete simulation of Caller ID, Call Waiting ID, Visual Message Waiting and other network services. Fully programmable signal generators (levels, frequency, duration, and twist) permit testing of DTMF, Call Progress, CPE Alerting Signal (CAS), and 12/16 KHz Metering Tones. A programmable white noise generator allows testing with noisy line conditions.

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