BinTec X3200, Руководство пользователя

Страница: 143 / 419

X3200 User’s Guide 143
X3200 and the WAN
5
➤
Enter PPP Password, e.g. Secret .
➤
Select Keepalives, e.g. off .
➤
Select Link Quality Monitoring, e.g.
off
.
➤
Confirm with OK.
You have returned to WAN P
ARTNER
➧
ADD.
Defining short hold Now set a short hold so that X3200 clears down the ISDN connection when
there is no further data exchange to save money. The short hold setting can be
either static or dynamic and tells X3200 the duration of the idle time, after which
it is to clear down the ISDN connection.
Static The static
➤➤
short hold setting determines how much time should pass be-
tween sending the last
➤➤
data packet and clearing the ISDN connection.
Enter a fixed period of time in seconds.
Dynamic With the dynamic short hold setting, no fixed period of time is specified and the
length of an ISDN charging unit is considered instead. Dynamic short hold is
based on AOCD (advice of charge during the call).
When setting dynamic short hold, you specify how much time should pass after
the last exchange of data before the connection is cleared. You enter a percent-
age based on the last charging unit. The value of the idle timer can therefore
change, just as the length of the charging unit changes (according to the time
of day, weekend, weekday, etc.). If you enter 50%, for example, the idle timer
is 60 seconds if the preceding charging unit was 120 seconds, and 300 seconds
if the preceding charging unit was 600 seconds. The connection is cleared on
expiry of the idle timer and shortly before the next charging unit starts.
How to enter the passwords is described in "Changing the password", page 95 .
In some cases, the caller cannot be identified with
➤➤
CLID , although
entered as a WAN partner. In this case, your X3200 does not know which
authentication protocol was set for this WAN partner. To enable the call to still
be accepted,
X3200 falls back on general settings in the PPP, which you can
change as necessary ( chapter 6.1.3, page 180 ).