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The Abacus Phone Adapter (PAD-5000) provides
an interface between the handset connector of an IP phone
and one of the channels of the Enhanced Analog Subscriber
(ECG3) to perform PSQM, PSQM+ or PESQ measurements on an IP
Phone.
The PAD-5000 converts the analog signal of
a 2-wire POTs line into a 4-wire interface (speaker and microphone)
compatible with an IP phone handset connector.
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