- Viking calling party control - generate CPC disconnect signals on four separate phone lines - Phone line powered (no AC needed) - Handle 4 lines in 1 unit - Generates CPC disconnect on: Return to dial tone (programmable) Busy signal Reorder (fast busy) Steady silence (programmable) - LED shows: In use Audio detected Generated CPC signal - Caller ID compatible - Power: Telephone line powered (20VDC 20mA minimum) - Dimensions: 133mm x 89mm x 44mm (5.25inch x 3.5inch x 1.75inch) - Shipping Weight: 1.13Kg (2.5 lbs) - Environmental: 0 C to 32 C (32 F to 90 F) with 5% to 95% non-condensing humidity - CPC Disconnect Time: 1 second nominal - Connections: 4 position screw terminal block - VKCPC4