User Manual

19
worked yesterday. Provider.
2. The router is turned off.
3. The router is using Port
Forwarding, but the DUALphone
has dynamic IP mode enabled.
4. The SIP server is down.
5. The Internet connection is down.
check that power is turned on and
reset the gateway.
2. Turn on the router.
3. Change to static IP mode. For
more information, see the User
Manual. Note that the configured
static IP address must agree with
the configured Port Forwarding.
4. Contact your Internet Telephony
Service Provider.
5. Contact your broadband provider.
There is no audio,
when I make
Internet calls.
1. The router blocks audio.
2. The Internet Telephony Service
Provider you signed up with does
not support the same audio
codec’s as are supported by the
DUALphone.
1. Use port forwarding. Check your
router’s user manual to see how
to configure port forwarding.
2. Contact your Internet Telephony
Service Provider for more
information.