Code Blue
•
259 Hedcor Street
•
Holland, MI 49423 USA
•
800.205.7186
•
www.codeblue.com
GU-139-Tpage 10 of 33
IA4100
Administrator Guide
8 Connecting PSTN/PBX Services
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).
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