Polycom SIP 3.0.2 사용자 설명서

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Administrator’s Guide SoundPoint IP / SoundStation IP 
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AC power adapter or can be line-powered (power supplied through the 
signaling or idle pairs of the LAN Ethernet cable). Line powering typically 
requires that the phone plugs directly into a dedicated LAN jack. Devices that 
do not require LAN power can then plug into the SoundPoint IP PC Ethernet 
port. 
SoundPoint IP Switch - Port Priorities
To help ensure good voice quality, the Ethernet switch embedded in the 
SoundPoint IP phones should be configured to give voice traffic emanating 
from the phone higher transmit priority than those from a device connected to 
the PC port. If not using a VLAN (VLAN set to blank in the setup menu), this 
will automatically be the case. If using a VLAN, ensure that the 802.1p 
priorities for both default and real-time transport protocol (RTP) packet types 
are set to 2 or greater. Otherwise, these packets will compete equally with 
those from the PC port. For more information, refer to 
.
Graphic Display Backgrounds
You can set up a picture or design to be displayed on the background of the 
graphic display of all SoundPoint IP 550, 560, and 650 phones. There are a 
number of default backgrounds, both solid and bitmaps. Users can select 
which background appear on their phone.
You can modify the solid backgrounds and bitmaps. For example, you can add 
a grey solid background or modify a bitmap to one of your choice.
To modify the backgrounds displayed on the supported SoundPoint IP phones:
1.
Modify the sip.cfg configuration file as follows:
a
Open sip.cfg in an XML editor.
b
Locate the background parameter. 
c
For the solid backgrounds, set the name and RGB values. For example:
bg.gf.gray.pat.solid.3.name=”Gray”
bg.gf.gray.pat.solid.3.red=”128”
bg.gf.gray.pat.solid.3.green=”128”
bg.gf.gray.pat.solid.3.blue=”128”
Note
When installing a background of your choice, care needs to be taken to ensure that 
the background does not adversely affect the visibility of the text on the phone 
display. As a general rule, backgrounds should be light in shading for better 
usability.