12 Connecting PSTN/PBX Services
page 18 of 45 GU-139-Z1
The IA4100 speakerphone has one FXO port for connectivity to POTS/1MB/Station Ports
from a Local Exchange Carrier, PBX system, etc. Each Code Blue phone requires its own
line or PBX extension of one pair of shielded twisted pair for the telco line (telco wire size
varies depending on the distance required; 22 gauge is standard).
IA4100
Administrator Guide
Code Blue
• 259 Hedcor Street • Holland, MI 49423 USA • 800.205.7186 • www.codeblue.com
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