Matrix SPARSH VP710, User Manual, Page: 752 / 1046

744 Matrix SPARSH VP710 User Guide
Why can’t IP phone supply power for device using USB port?
The USB port of MATRIX IP phone has a limit current of 525 ~ 875mA. Make sure that the device is USB flash drive
or mobile hard disk with low power.
Hardware Issues
Why is the sending/receiving volume of the speaker too low?
• If there is no volume sending from the speaker or sending volume is too low, the Hands-free MIC cable
may not have been properly connected.
• If there is no volume receiving from the speaker or receiving volume is too low, the speaker cable may not
have been properly connected.
Why is the sending/receiving volume of the headset or handset too low?
Ensure that the headset or handset is not damaged. If the headset or handset is usable, it may be the codec
problem on the mainboard.
Why is there no response when pressing the keys on the keypad?
Do one of the following:
• Ensure that the keypad cables is properly connected and not damaged.
• Check if the keypad surface is clean.
Why is there no response when tapping the items on the touch screen?
Do one of the following:
• Ensure that the FPC of the touch screen is properly connected.
• Check if the touch screen is damaged.
Why is the LED off when pressing the hard key with LED indicator?
Make sure that the cable of keypad board is properly connected. If the cable is properly connected, it may be the
LED on the board is damaged.
Other Issues
How do I find the basic information of the IP phone?
Tap Settings->Status when the IP phone is idle to check the basic information (e.g., IP address, MAC address and
firmware version).
What is the difference among user name, register name and display name?
Both user name and register name are defined by the server. User name identifies the account, while register name
matched with a password is for authentication purposes. Display name is the caller ID that will be displayed on the
callee’s phone touch screen. Server configurations may override the local ones.
What do “on code” and “off code” mean?
These are the codes that the IP phone sends to the server when a certain action takes place. On code is used to
activate a feature on the server side, while off code is used to deactivate a feature on the server side.
For example, if you set the Always Forward on code to be *78 (may vary on different servers), and the target
number to be 201. When you enable Always Forward on the IP phone, the IP phone sends *78201 to the server,