ZyXEL Communications P-2304R, Руководство пользователя

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Chapter 21 Troubleshooting
P-2304R-P1 Series User’s Guide
219
The username and password apply to PPPoE encapsulation only. Make sure that you
have entered the correct
Service Type , User Name and Password (be sure to use the
correct case). Refer to Section 6.2 on page 77 .
21.4 Phone Calls and VoIP
V
The telephone port won’t work or the telephone lacks a dial tone.
1 Check the telephone connections and telephone wire.
2 Make sure you have the VoIP SIP Settings screen properly configured.
V
I can access the Internet, but cannot make VoIP calls.
1 Make sure you have the VoIP SIP Settings screen properly configured.
2 One of the PHONE lights should come on. Make sure that your telephone is connected
to the corresponding PHONE port.
3 You can also check the VoIP status in the Status screen.
4 If the VoIP settings are correct, use speed dial to make peer-to-peer calls. If you cannot
make a call using speed dial, there may be something wrong with the SIP server, contact
your VoIP service provider.
V
I cannot call from one of the ZyXEL Device’s phone ports to the other phone
port.
1
You cannot call the SIP number of the SIP account that you are using to make a call.
The ZyXEL Device generates a busy tone and does not attempt to establish a call if the
SIP number you dial matches the outgoing SIP number of the phone port you are using.
For example, if you set
Phone 1 to use SIP account 1 and set Phone 2 to use SIP
account 2, then you can use Phone 1 to call to SIP account 2's SIP number or Phone 2 to
call to SIP account 1's SIP number.