ZyXEL Communications MAX-207HW2 User Manual page 173

Chapter 17 Troubleshooting
17.4 Phone Calls and VoIP
The telephone port won't work or the telephone lacks a dial tone.
Check the telephone connections and telephone wire.
1
Make sure you have the VOICE > Service Configuration > SIP Settings screen
2
properly configured
I can access the Internet, but cannot make VoIP calls.
Make sure you have the VOICE > Service Configuration > SIP Settings screen
1
properly configured
The VoIP LED should come on. Make sure that your telephone is connected to the
2
VoIP port (see the Quick Start Guide for information on connecting telephone
cables to the these ports).
You can also check the VoIP status in the Status ( 狀態 ) screen.
3
If the VoIP settings are correct, use speed dial to make peer-to-peer calls. If you
4
cannot make a call using speed dial, there may be something wrong with the SIP
server. Contact your VoIP service provider.
Problems With Multiple SIP Accounts
You can set up two SIP accounts on your WiMAX Modem. By default your WiMAX
Modem uses SIP account 1 for outgoing calls, and it uses SIP accounts 1 and 2 for
incoming calls. With this setting, you always use SIP account 1 for your outgoing
calls and you cannot distinguish which SIP account the calls are coming in
through. If you want to control the use of different dialing plans for accounting
purposes or other reasons, you need to configure your phone port in order to
control which SIP account you are using when placing or receiving calls.
174
(Chapter 10 on page 109).
(Chapter 10 on page 109).
User's Guide