VTech SIP Contemporary Series User Manual page 20

Question
There is interference during a telephone
conversation.
The telephone cannot register to the network
server.
I hear other calls when using the telephone.
Suggestions
• Disconnect the telephone base from the
network wall jack and connect a different
SIP telephone that has been verified to
function properly. Check your SIP server
settings. If calls are still not clear, the
problem is probably in the wiring or
network server. Contact your telephone
service provider (charges may apply).
• If other SIP telephones in your hotel are
having the same problem after checking
your SIP server settings, the problem is
in the wiring or local telephone service.
Contact your telephone service provider
(charges may apply).
• Make sure your network is providing
Power over Ethernet (PoE).
• Make sure the initialization and system
registration process completes.
• If there is an error during the initialization
and system registration process, the
SPEAKER key flashes twice every second.
Disconnect the Cat-5 network cable from
the network wall jack and connect it back
into the network wall jack with Power over
Ethernet (PoE) to start the initialization
and system registration process again.
• Disconnect the telephone base from
the network wall jack and connect a
different working telephone. Check your
server settings. If calls are still not clear,
the problem is probably in the wiring or
network server. Contact your telephone
service provider (charges may apply).
EN - 20