28xx CIP-D User Guide 79
Daisy-chaining IP phones
- Do not connect an IP phone to
another IP phone through the
access port. Each IP phone should
directly connect to a switch port.
If you connect IP phones together in
a line (daisy-chaining), a problem
with one phone can affect all
subsequent phones in the line. Also,
all phones on the line share
bandwidth.
Moving a network connection from the phone
to a workstation
- If you are powering your phone
through the network connection,
you must be careful if you decide to
unplug the phone’s network
connection and plug the cable into
a desktop computer.
The computer’s network card
cannot receive power through the
network connection; if power comes
through the connection, the network
card can be destroyed. To prevent
this, follow the instructions of
manufacture of in-line power
provider.
Several seconds of being
disconnected may be required for
the device to recognize that there is
no longer a phone on the line, and
to stop providing power to the
cable.
Changing the telephone configuration
- Only an administrator should change
the phone configuration. Incorrectly
changing parameters will result in the
phone not Duplicate IP screen
- There may be another device on the
network with your phone’s IP
address. Change the IP address.
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