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7. Troubleshooting
The following troubleshooting information can be used to help solve most common problems.
QUESTION RECOMMENDED ACTION
There is no DIAL tone
1. Check if there are any loose connections.
Nothing is displayed on the
LCD screen
1. Check if the power cord is connected properly.
2. Check if there is proper AC power coming from the power outlet.
Why can’t I dial my friend’s SIP
number?
1. Check Registrar Server Domain Name/IP address and Outbound
Proxy Domain Name/IP Address (under SIP Settings in Configuration
Menu). Make sure you have the right Name or IP Address.
2. Check the LCD display on your phone to see if there is a name or
number displayed on the screen. If the name or number is not displayed,
use a web browser and access the configuration menu. Make sure that
the Registrar Server Domain Name/IP Address is correct.
3. Check the register status under SIP Account Settings in the
configuration menu (from a web browser). If your status is unregistered,
it means you do not have a SIP account. Contact your SIP service
provider to get an account.
I accidentally set DSL to enable
and now the phone does not
boot up
Unplug the power cord from the IP phone. Wait 2 seconds and plug the
power cord back in the IP phone. Press and hold the MENU key. The
system should bypass boot up and go straight into the phone setup
menu. Modify the phone setting and make sure you save it before you
exit.
Why do I get “Can’t Upgrade
Now” screen when I click
[Submit] in the configuration
menu?
Make sure you exit setting mode (phonebook, menu, speed dial…)
before you click [Submit] in the configuration menu.
The WAN port of my DPH-150S
(PhoneB) is connected with the
LAN port of another DPH-150S
(PhoneA). Then, my DPH-150S
To solve this problem, please change the IP segment of the PhoneA
LAN port to something other than “192.168.15.xxx” (for example,
“192.168.10.xxx”).