ESI ESI-600, Руководство пользователя

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Using 48-Key IP Feature Phone II remotely User’s Guide
G.2
Troubleshooting
Important:
The audio quality of the 48-Key IP Feature Phone II is dependent on the quality of the connection
between the phone and the IP PBX at the main office. High data traffic on a poor or overloaded
connection will cause significant audio distortion, which may include pops and clicks, or warbling.
In this case, contact your ESI Reseller or network administrator for assistance. The quality of
your main office’s outside phone lines also can affect the phone’s audio quality. Due to the
interface between advanced, packet-based phone systems and the traditional public telephone
network, a poor-quality phone line can degrade audio quality, causing an echo on outside calls.
An
occasional echo isn’t unusual and doesn’t necessarily indicate a problem with your system or
lines; however, if this problem occurs persistently , contact your ESI Reseller for assistance.
Condition Procedure
Phone display is blank
•
Check other phone functions. If you get dial tone when you lift the receiver and
the display is blank, the phone is defective.
•
Make sure the Ethernet cable is plugged into the phone’s NETWORK jack (and
not the PC port).
•
If no phone functions operate, check the phone power supply. It should be
plugged into the phone and into an active AC outlet. If the display is still blank, the
phone is defective.
Contact your ESI Reseller if the phone is defective.
Phone display shows
software version The phone is faulty. Contact your ESI Reseller.
Phone connects but
doesn’t operate correctly The phone may be defective. Contact your Reseller or use Esi-Test to test all of the
phone’s capabilities. ( Esi-Test is part of the Esi-Tools Users’ Kit and can be installed
on a PC from the CD-ROM.)
Phone won’t connect
Important: See page A.7 for instructions on connecting your phone.
•
Check the cable between the phone and network access device (router, hub or
switch). This cable should be plugged into the port on the bottom of the phone
labeled
NETWORK .
•
Check that the link light for the port on router is illuminated. If this light is not lit
check the power supply connection for the router.
•
Check the cable between the network access device and the modem. The WAN
port on a router should be plugged directly into the modem. If using a hub or
switch, connect its
UPLINK port to the modem.
•
Check your IP connection by using your PC to access a site on the Internet (after
accessing a Web page, press
Ctrl R [for Refresh ] to verify that your Web browser
is displaying fresh data).
•
Call the main office with a regular phone. Make sure the problem is not with the
network or IP connection at the main office.
Phone works correctly but
the audio quality is poor The problem is probably with the connection between the phone and the IP PBX at
the main office. Ask your Network Administrator or ESI Reseller to evaluate your
connection to the main office using
Esi-Networx .