Phone Expansion Module Home / Displays / Computer Monitors / Phone Expansion Module Showing all 2 results Default sorting Sort by popularity Sort by average rating Sort by latest Sort by price: low to high Sort by price: high to low 8800 SERIES AUDIO KEY EXPANSION MODULE 28 BUTTON CP-8800-A-KEM=Communications, Phone Expansion Module, Phone Systems $336.35 Add to cart 8800 SERIES VIDEO KEY EXPANSION MODULE 28 BUTTON R CP-8800-V-KEM=Communications, Phone Expansion Module, Phone Systems $336.37 Add to cart