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5312/5324 IP Phones User Guide
For Users on Resilient 3300 ICP Systems
If during a call, you hear two beeps repeated every 20 seconds it means that your phone is switching
to a secondary 3300 ICP system. The call continues but some of the keys and features on your
phone function differently. The keys and most features begin working normally again after you hang
up. If your phone switches to the secondary system while your speaker or handset is muted (that is,
while the
MUTE light is on), the call remains muted until you hang up. Normal operation resumes
when your phone switches back to the primary system. If your phone is idle and switched to the
secondary system, you'll see a flashing rectangle on the display. The rectangle remains until the
switch to the primary system is complete.
Line Interface Module
The Line Interface Module is an optional device that adds an analog phone line (POTS) capability to
your 5324 IP phone only. If Emergency Call Routing is not programmed on your 3300 ICP, you must
use the Line Interface Module to dial emergency calls. For more information on emergency number
dialing, refer to Emergency Calls. If you have a Line Interface Module connected to your 5324 IP
Phone, all programming of the Line Interface Module, except the Analog Key, is done by the Installer
when your phone is installed. For more information, refer to "Using the Line Interface Module"
elsewhere in this guide. Note: The 5312 IP Phone does not support the Line Interface Module.
TIPS FOR YOUR COMFORT AND SAFETY
Don't cradle the handset!
Prolonged use of the handset can lead to neck, shoulder, or back discomfort, especially if you cradle
the handset between your ear and shoulder. If you use your phone a lot, you may find it more
comfortable to use a headset. See the section on headset usage elsewhere in this guide for more
information.
Protect your hearing
Your phone has a control for adjusting the volume of the handset receiver or headset. Because
continuous exposure to loud sounds can contribute to hearing loss, keep the volume at a moderate
level.
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