5-19.3.3 Talking between telephone stations. Crewmembers at any telephone station talk to other crewmembers at
any other telephone station on line by following these procedures:
Perform following procedures at front panel of the respective equipment unless
otherwise noted. Telephone stations on line with each other from telephone
station selector box are as follows: telephone stations 1-4, telephone stations 2
and 9-12, and telephone stations 2 and 5-8.
Connect telephone headset to appropriate telephone headset station jack receptacle.
Press PTT switch on earphone and speak into microphone using proper call sign. Control volume by adjusting
VOLUME switch on headset station.
Paged headset station should answer page with station location as a call sign.
After headset station responds, send message.
Continue talking until communications are complete. Then, unplug telephone headsets from headset station.
5-19.4 Shutdown procedures. When telephone system is to be shut down for any length of time, perform the following:
Make sure BUZZER switch on telephone buzzer station selector panel (Figure 5-14) is off.
Make sure telephone headsets with 25-foot extension cord are properly stored in either telephone stowage boxes
or in ROWPU space aft storage area.
Press telephone system PUSH-ON/PUSH-OFF button to OFF (Figure 5-14). Make sure white indicator light goes
Open (OFF) circuit breakers 10P13A-7 on emergency light panel and 3P14 on 24 Vdc power panel.