Yellowtec b-line Manual page 60

Digital dual hybrid and phone system for pots / isdn / voip
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T a l k m a s t e r
X T
®
P A G E 6 0
S o f t w a r e
POTS: PABX
Under Country Setting you can select which country-specific POTS interface
you use.
NOTE
This setting is important for the Audio quality. The impedance of the POTS
interface may vary from country to country and the Echo Canceller of the sys-
tem can only work correctly if the right Country Setting is selected.
If your PABX has been manufactured in a different country, you should also
try the origin country as Country Setting.
• The function Wait for received phone number (CLIP) before call in sig-
nalling allows you to decide whether you want to see an incoming call im-
mediately displayed or if you want to wait until the telephone number of
the caller is transmitted. The signalling of the telephone number will take
2 - 3 ringing tones.
• If you want to drop the connection when the system detects a busy tone on
the called end, you can select Drop when busy tone detected.
• Under Loop-Break Timeout you must select the time the system needs to
eliminate loop-break disturbances to answer a call. Usually, values from
300 msec to 500 msec should be sufficient. If you have problems with these
values, you should select a higher one.
• The Hook Flash Duration depends on your PABX or outside line and is
required for call forwarding.
• The Busy/Drop Tone may vary from country to country. Therefore, you
can measure the values with the function Measure Values under
BUSY/DROP Tone. In this way you make sure that the system recognises
when a call is dropped or when the line is busy.
To measure the Busy/Drop tone you just need to e.g. call a busy line on
caller line 1 and press the button Measure Values.
• Under High pass filter cut off frequency you can select different filter
values for Receive and Transmit direction to eliminate disturbances in
the telephone signal. All signal parts below the selected frequency are
eliminated. The recommended setting is 300 Hz for both directions.
• Under POTS line level adjustment you can adjust the level for the tele-
phone signal separately for the Receive and Transmit direction.

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