LifeSize Phone Support Technote

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Absent Dial Tone
If you do not receive a dial tone after pressing the key to initiate a call, ensure the speaker
volume is adjusted appropriately.
Problematic Sound Quality
If you are unable to hear the phone ring when an incoming call arrives, the speaker volume may
be set too low. (The LEDs flash blue to indicate an incoming call.) Adjust the volume using the up
and down volume key. If you still experience audio problems, adjust the Ring Tone Volume
preference (on the Audio submenu of the Preferences menu) in the administrator configuration
from the phone or web browser.
Muffled reception may be caused by highly reverberant rooms. If you are experiencing poor
reception, add more sound absorbency to the room and speak closer to the unit.
Adjust the priority order for your audio codec if you have chosen a low-bandwidth audio codec to
be first. Ensure that the far end caller has configured the phone correctly and is in an acoustically
benign environment. For best results, ensure the far end caller is using a LifeSize Phone.
Distorted Audio
Poor audio quality may result from a bad network connection. Ensure that your network
connection is capable of handling the correct bandwidth; LifeSize recommends that your network
connection be capable of at least 100Mbps (100-baseT) for best performance.
Also ensure the loudspeaker is not obscured or damaged at either end of the call. Do not stack
items on top of the phone.
Do not use any kind of liquid or aerosol cleaner on the phone. A soft, slightly damp cloth should
be sufficient to clean the top surface of the phone if necessary.

LifeSize Phone Specifications

General

Brand	LifeSize
Model	Phone
Category	Conference Phone
Language	English