Polycom SoundPoint IP 450 User Manual

Polycom SoundPoint IP 450 User Guide
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The phone does not ring (cont.) You turned off the ringer. Do one of the following:
• During an incoming call, lift the
handset, press the Speakerphone
key, or press the Headset key to
obtain a dial tone.
• Press the ringing Line Key or the
Answer soft key to answer the call.
The ‘Service Unavailable’
displays on the screen.
The user pressed the New Call
soft key, dialed a number with the
handset on-hook, or attempted to
make a call from the contact
directory when the phone was
not registered, or all available
lines are in use.
Check with your system administrator to
see when your phone will be registered.
The line icon shows an
unregistered line icon.
The phone line is unregistered. Contact your system administrator.
Symptom Problem Corrective Action

Polycom SoundPoint IP 450 Specifications

Display

display resolution	256 x 116 pixels
display type	backlit grayscale graphical LCD
display backlight	LED backlight with custom intensity control

Audio Features

frequency response	150Hz - 7kHz
codecs	G.722, G.711 μ/A, G.729A, iLBC
full-duplex speakerphone	Type 1 compliant with IEEE 1329

Power

power over ethernet	IEEE 802.3af Class 2
external AC adapter	24VDC/12W
power adapter	Universal, auto-sensing

Operating Environment

operating temperature	0 to 40°C (+32 to 104°F)
storage temperature	-40 to +70°C (-40 to +160°F)
relative humidity	5% to 95%, noncondensing

Size and Weight

dimensions	8.5 x 6 x 6.5 in x 2.5 in (21.5 x 15 x 16.5 x 6.5 cm)
box dimensions	12.5 x 13.25 x 3.5 in (31.75 x 33.5 x 9 cm)
unit weight	2.4 lbs (1.1 kg)