Uniden D2280 English Owners Manual - Page 22

A handset can make calls, but it won't ring.  Make sure the ringer is turned on.  Make sure Silent Mode is turned off (see p. 13). A handset is not working.  Charge the battery for 15-20 hours.  Check the battery connection. The phone keeps ringing when I answer on an extension.  You may have to change the line mode. Contact Customer Service for instructions. Audio issues Possible solutions Callers sound weak or soft.  Move the handset closer to the base.  Keep the handset's battery fully charged.  Increase the earpiece volume.  Check for interference from appliances (microwave ovens, TVs, etc.) or wireless devices (baby monitors, There's a lot of WiFi equipment, etc.). Move the handset or base away from the interference source. noise or static on the line  If you use a telecoil hearing aid, turn on T-coil mode (see p. 8).  If you have any service that uses the phone line, add a DSL or telephone line filter (see p. 23). Caller ID problems Possible solutions No handsets display Caller ID information.  Let calls ring twice before answering.  Make sure your Caller ID service is active. Caller ID displays briefly  You may have to change the line mode. and then clears. Contact Customer Service for instructions. Multi-handset problems Possible solutions I can't transfer calls.  Reset the handset (see p. 24). Two handsets can't talk to a caller.  See if any handset is in Privacy Mode. A handset says Unavailable.  Move the handset closer to the base.  See if any handset is in Privacy Mode. I can't register a new handset.  Reset the handset (see p. 24).  See if you have 12 registered handsets. 22 - English