Analog Telephony Interfaces
Biamp first introduced an analog telephone interface with the AudiaFLEX TI-2 card, followed soon after with the Nexia TC. Recently we’ve released the STC-2 card for Tesira, which shows our ongoing support of analog telephony. In this blog post we’ll discuss some basic terms of telephony and then dive in to programming and troubleshooting the interfaces. Analog telephony terms Plain Old Telephone Service (POTS) refers to the standard low speed and limited bandwidth (180 to 3200Hz) analog service used to deliver telephone services to many homes and businesses. Current modulation on a twisted pair of wires is used to communicate the audio information in full duplex. TI-2 and Nexia TC…