PLANET VIP-255PT - Manual (Page 50)

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Appendix C Frequently Asked Questions List
Q1 : I can not register to the server？
A1 : 1. Check the IP address. If you set your LAN port in DHCP mode, please make sure that your
DHCP server is on.
2. Check your gateway.
3. Check your DNS server.
4. Make sure your account information is the same as you have got from your ISP.
5. Check whether the SIP server is on.
6. Check the SIP register port, the default value is 5060.
Q2 : I can’t get the IP address?
A2: 1.Make sure you have plugged the Ethernet cable into the LAN port.
2. Make sure that the DHCP server is on, and there are available IP addresses in the server.
3. Try to set your LAN port to static IP client mode.
Q3 : During a call, I can not hear any voice?
A3 : 1.Make sure Your handset is tightly connected with the phone.
2. Check whether you have muted the conversation or not.
3. Consult the outbound server details with your ISP.
Q4 : Have DTMF problem?
A4 : 1.Check which kind of DTMF you are using, and whether it is compatible with the server
2.Consult the payload value with your ISP
Q5 : How to change the time?
A5 : Select the time zone on the webpage.
Note: You can’t change the time manually because that our phone will automatically get the time from
the SNTP server.
Q6 : How to answer the incoming calls during a call?
A6 : If a call comes in when you are in a conversation, press the HOLD button to answer the incoming
call.
Q7 : How to refuse incoming calls during a call?
A7 : You can turn off the function of call waiting, and then our phone will refuse all the incoming calls
when you are in a conversation.
Q8 : How to send SMS?
A8 : You could edit the SMS in the MENU-> Messages->Text Messages.
Note: Make sure that the SIP server you have registered supports SMS function.