The Analog Series offers classic phone models for those needing traditional analog communication solutions. This series includes single-line and two-line phones with PSTN line support. Models like the D630, D630M, D603, and D601 feature options for room identification, speed dial (GSK), and a message indicator. They come with customizable faceplates in crystal or paper, available in black or ash colors, and can be wall-mounted. The Analog Series ensures reliable, straightforward communication with the timeless functionality of classic analog phones.