The ESI CS 684 port card is designed to fit the Communications Servers produced by ESI. Each 684 Port Card (5000-0419) provides 6 analog trunks, 8 digital ports, and four analog ports.
ESI CS 684 Features:
- Provides 6 Analog Trunks / 8 Digital Ports / 4 Analog (Single Line) Ports
- Compatible with ESI CS200 / CS600 / CS1000
- (1) ESI CS 684 (5000-0419) Port Card
- 1 Year Warranty