Panasonic GD87 - Manual (Page 88)

Pause Dial
Using pauses allows you to send DTMF tones automatically.
When the call is successful DTMF tones will be sent after 3
seconds.
If the DTMF tones are unsuccessful then the destination of your
call may require that the length of the tones be increased, as
follows:
From Idle mode:
Second Clock
The Second Clock can either be set to be auto-adjusting,
whereby the second time is set from the code of the current
network, or a specified time difference can be set manually.
Setting Clock Display
From Idle mode:
Setting Auto Adjustment
When travelling to a country / region which has a roaming
agreement with your home network, the Second Clock is
adjusted automatically. However, for countries / regions which
have several time zones in the same area manual adjustment is
required.
From Idle mode:
90
Additional Features
Additional
Features
Enter phone
number
Enter DTMF
numbers
My Phone >
DTMF Length
Select
Long
Applications >
Clock Function >
Clock Format >
Choose Clock
Select
option
Applications > Clock Function >
Clock Set > Away >Auto Adjustment >
Home Area
Select your
home area
Press and
hold until P is
displayed