AASTRA 390 사용자 가이드

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Model 390 User Guide 15
Troubleshooting
Troubleshooting
What are services, and how do I 
use them?
Services are provided by your 
telephone company, and include 
basic features such as Caller ID
Other services can be accessed 
through the Í key,  and may 
include services such as Call 
Forwarding
 and Voice Mail†. 
Before using your services, you 
must activate them by contacting 
your local telephone company. See 
the section “Using Services” for 
more information.
I’m having trouble with services 
I have subscribed to – how do I 
get help?
Usually your telephone company 
supplies a special number to call for 
activation of your services. When 
you call this number, you must 
follow the recorded instructions 
carefully. This allows the telephone 
company’s system to recognize 
your phone and customize it with 
the services you have subscribed to. 
If you have any activation problems 
call your local telephone company.
Why are there no prompts on the 
screen when a Call Waiting call 
comes in?
You must subscribe to Call Waiting 
Identification† from your telephone 
company.
Why is the light not coming on 
with a new Voice Mail Message?
You must subscribe to the “Visual” 
Message Waiting† service from your 
telephone company for this function 
to work 
Why don’t numbers I return 
from the Callers List connect?
Incoming calls are recorded with the 
area code attached, whether they 
are long distance or local calls. You 
must remove the area code from 
local calls in order to call from the 
Callers List, or use the Area Code 
option in the options list to have 
local area codes automatically 
removed. See the section 
“Customizing your phone” for 
information about the Area Code 
option.
Alternatively, you may need to add 
‘1’ before long distance numbers in 
order to dial long distance.
Why is my display blank?
Ensure that the power adaptor is 
fully plugged into the electrical 
outlet, and that the outlet is 
supplying power (you can test this 
with another electrical device, such 
as a lamp).
How do I set the time and date?
If you subscribe to the Caller ID† 
service, the first incoming call will 
update the phone with the correct 
time & date. Otherwise, use the 
Time/Date option in the options list 
to manually set the time and date.
Why can I only see 4 options 
when the user guide says there 
are 6?
The telephone screen will only 
show 4 options at a time. To see 
more, press the down arrow button 
˘
.
How do I remove the stand from 
the phone?
Place one hand on top of the phone, 
and place the other hand on the top 
of the stand. Pull the stand away