IP400 Office Universal Quad Analog Trunk (LS) Card (700185192)

Provides four Analog trunk ports. These are 2-wire loop start interfaces including support for caller ID. With IP Office R3.1 and later, this module supports optional 16ms echo cancellation.
This card is available in all territories where the IP Office is sold. Ground start analog trunks are supported via the IP Office Analog Trunk 16 Expansion Module.