Kazi: Smart Integrated Digital Echo Canceller (SIDEC), Kiolesura: PCM, Serial, UCC, Idadi ya Mizunguko: 4, Voltage - Ugavi: 3V ~ 3.6V, Ugavi wa Sasa: 350mA, Nguvu (Watts): 900mW,
Kazi: Dual Channel Subscriber Line Interface Circuit (DuSLIC), Kiolesura: IOM-2, PCM, Idadi ya Mizunguko: 2, Voltage - Ugavi: 5V, Ugavi wa Sasa: 60mA, 90mA,
Kazi: Subscriber Line Interface Concept (SLIC), CODEC, Kiolesura: GCI, PCM, SPI, Idadi ya Mizunguko: 1, Voltage - Ugavi: 3.13V ~ 5.25V, Ugavi wa Sasa: 88mA, Nguvu (Watts): 700mW,