User`s manual
Help
70
No Caller number/name displayed
• Have you subscribed to Caller ID service? See page 41.
• The caller may have blocked their number.
• An exact name/number match was not found in your phonebook. Check that you have stored the complete number
including area code.
• The caller might not be calling from an area which supports Caller ID.
• Both you and the caller's telephone companies must use equipment compatible with the Caller ID service.
• The Caller ID information shows after the first or second ring.
Base unit does not ring, but the lights are on
• Have you connected the telephone line correctly?
• Is the base ringer set to off?
• You may have a faulty line or socket. Try using another socket.
Buzzing noise on my phone or on other electrical equipment nearby
• Sometimes your DS6321 can interfere with other electrical equipment if it is placed too close. It is recommended that
you place your DS6321 at least one metre away from electrical appliances or metal obstructions to avoid any risk of
interference.
• If you have an ADSL internet service ensure correct filters are installed to prevent interference.
Please contact the technical support of the network provider for further information.
This telephone is not equipped with a grounding function! Therefore some of the functions may be limited when used in PBX
systems.
For technical support, please call VTech Technical Inquiry Hotline Tel: 852-2667 7433.