Doro ip880dect ahs, Руководство пользователя

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Problem Possible Causes Possible Solutions
I cannot make
Internet calls, the
VoIP indicator on
the gateway is not
lit, and the right
status indicator
in the upper left
corner of the
display is black.
The configuration
of the phone is not
complete.
The gateway has
not been reset
after you saved the
configuration.
The router uses port
forwarding.
The router blocks
Internet telephony.
The router firmware
needs updating.
1.
2.
3.
4.
5.
Check that you have configured your
phone properly.
Reset the gateway and allow the gateway 2
minutes to log in at your Internet Telephony
Service Provider.
Check that you have configured your
router so that it always assigns the same
IP address to your phone’s MAC address
when using port forwarding. Otherwise
incoming traffic is probably not forwarded
to your phone. For more information,
check your router’s manual.
a) Try disabling STUN. Open the
Internet settings menu, choose STUN
mode, and select Disabled. Reset the
gateway.
b) Use port forwarding. The default SIP
port is 5060, and the default RTP port
is 5004. Ensure that your router always
assigns the same IP address to your phone
when using port forwarding. For more
information, check your router’s manual.
Check your router’s user manual to see
how to update the firmware.
1.
2.
3.
4.
5.
I cannot make
Internet calls,
but it worked
yesterday.
The gateway is not
connected to the
Internet.
The router is turned
off.
The SIP server is
down.
The Internet
connection is down.
1.
2.
3.
4.
Check that all cables are connected
properly, and check that power is
turned on, and then reset the gateway.
Turn on the router.
Contact your Internet Telephony
Service Provider.
Contact your broadband provider.
1.
2.
3.
4.
When I make
Internet calls, the
sound quality is
poor.
There is too much
simultaneous data
traffic on your
connection.
Your Internet
Telephony Service
Provider’s Quality of
Service is based on a
“best efforts” rather
than a guaranteed
voice priority
method.
1.
2.
a) Reduce the amount of traffic on your
broadband connection.
b) Sign up for a Quality of Service
agreement with your broadband
provider.
c) Order a connection with higher
speed from your broadband provider.
Contact your Internet Telephony
Service Provider regarding ensured
voice prioritization across the network.
1.
2.
If nothing else helps, reset the gateway to the default settings. Press and hold the
Reset
button on the gateway for at least 10 seconds. All configurations will be lost.