Siemens 500 manual Appendix, Troubleshooting, Error, Possible cause, Remedy

Appendix

Appendix

Troubleshooting

Some malfunctions can be resolved without outside intervention. The fol- lowing table provides a list of such malfunctions.

Error	Possible cause	Remedy
No display.	Handset not switched	Press the On-hook key
	on.	until confirmation is re-
		ceived.
	Battery is empty.	Charge or replace the
		battery.
No reaction to key-	Keypad lock activated.	Press the hash key until
stroke.		confirmation is re-
		ceived.
De-crescendo tone se-	An incorrect entry was	Repeat key sequence
quence during input.	made.	while watching the dis-
		play; where applicable,
		consult the operating
		instructions.
The line "Base n" flash-	The handset is outside	Come closer to the
es (n= 1 - 4).	the base radio range;	base radio range,
	Radio signals too weak.	change your position.
	Handset not regis-	Register the handset.
	tered.
	Intervals between syn-	Switch off the handset
	chronisation attempts	and switch it back on
	are too long.	again.
No ringer on the hand-	Ringer is deactivated.	Activate ringer.
set.
Nothing audible during	The "R key" was	Press the "Delete" Dis-
a call.	pressed – the micro-	play key to re-activate
	phone and the receiver	the microphone and
	inset are muted.	the receiver inset.
The following appears	Communication sys-	Repeat call later.
immediately after the	tem is being used by
Talk key is pressed:	other users.
Connect.
No dial tone available;
No calls can be made.

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