Polycom SoundPoint IP 450 User Guide
88
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
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