ZyXEL p-2602r-d1a Manual Do Utilizador

P-2602R/RL-DxA Series User’s Guide

Chapter 24 Troubleshooting

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Figure 150   Java (Sun)

Table 98   Troubleshooting Telephone

The telephone port 

won’t work or the 

telephone lacks a 

dial tone.

Check the telephone connections and telephone wire.
Make sure you have the VoIP SIP Settings screen properly configured.

I can access the 

Internet, but  

cannot make VoIP 

calls.

Make sure you have the VoIP SIP Settings screen properly configured.
One of the PHONE lights should come on. Make sure that your telephone is 

connected to the corresponding PHONE port.
You can also check the VoIP status in the Status screen. 
If the VoIP settings are correct, use speed dial to make peer-to-peer calls. If you 

can make a call using speed dial, there may be something wrong with the SIP 

server, contact your VoIP service provider.

I cannot call from 

one of the ZyXEL 

Device’s phone 

ports to the other 

phone port.

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.