Malfunctions Of Aastra Dect Cordless Phones; Malfunctions Of The Dect Charging Bays - Aastra 470 System Manual

Operation and Maintenance
6. 6. 2. 6

Malfunctions of Aastra DECT cordless phones

Tab. 109 Malfunctions of Aastra DECT cordless phones
Error description
No display.
No radio link to radio unit; no aerial symbol.
Impossible to dial.
No dial tone.
Poor connection quality (echo effect).
Cordless phone beeps approx. every 10 s during a
call (or in standby) while battery indicator is flash-
ing.
Call breaking up.
A cordless phone is called from a different system
phone, but cannot be reached.
Cordless phone is not ringing.
The cordless phone cannot be configured; PIN
missing (or forgotten).
6. 6. 2. 7

Malfunctions of the DECT charging bays

Tab. 110 Malfunctions of the DECT charging bay
Error description
The cordless phone will not charge.
272
Error cause / error handling
• Switch cordless phone on and test
• Replace or charge battery
Check coverage area (within range of a radio unit).
• Check radio units in this section
Cordless phone not logged on to system
• Log cordless phone on
Keypad blocked (keylock)
• Reactivate keypad
• Check radio units in this section
• Turn down volume on the other call side (at call party)
• Replace battery immediately, either after or during the
call (see cordless phone user's guide)
You are moving out of range.
• Find a location with a better radio contact
Busy tone obtained and display reads
• Cordless phone is busy
Congestion tone obtained and display reads
load
• All radio channels busy
If congestion tone is obtained after 8 seconds and display
reads No answer. Reasons why the cordless phone could
not be reached:
• It is switched off
• It is not within reachable radio area
• No radio channels currently available
• It is not logged on to system
• Call diverted due to unobtainable
• Activate tone ringing
• Reset PIN using AMS (overwrite)
Error cause / error handling
• Connect power supply
• Check the charging contacts
• Check battery and replace if necessary.
About the charging process:
• Battery symbol on the cordless phone is flashing
(Office 135) or filling up (Office 160, Aastra 600c/d) when
the battery is being charged.
• Check tone indicates correct contact.
Busy
Circuit over-
Aastra 470 ab R3.0
syd-0337/1.5 – R3.0 – 05.2013