 ISDN |
 |
|
Q 1. supplementary services
Q
2. upgrading the DTE speed
from 115,200bps to 230,400bps
Q
3. the differences between
the external ISDN TA and the ISDN add-on card
Q
4. the Screen incoming call
function
Q
5. using the Screen Incoming
Call function
Q
6. IS128SS Series--/SDN-TA
Caller ID function
Q
7. Setting the ISDN TA driver
up
Q
8. Configuring the Dial-Up
Network with Windows 95
Q
9. u-low coding and a-low coding
Q10.
the S register functions of BOD
feature
|
| Q
1. supplementary
services? |
|
A
1.
Generally speaking, supplementary services are the services
applied by the local PTT Switch, such as call waiting, call
forwarding, hunting group, three way calling..., etc.
To get
supplementary services:
- Apply
for the services from the local PTT; additional service
charge is needed.
- Enable
the "Local Supplementary Service" function of Taicom
ISDN-TA; no needs for application from PTT and extra charge.
|
| Q
2. upgrading
the DTE speed from 115,200bps to 230,400bps? |
|
A
2.
Normally the DTE speed is decided by the RS232 chip of Mother
Board.
If the Mother Board uses the No. 16550 of RS232 chip, the
DTE speed can only support to 115,200bps; you can buy a
high speed Serial I/O Card and insert it into the Mother
Board to upgrade the DTE speed upto 230,400bps.
Still,
if the Mother Board uses the No. 16650 of RS232 chip, the
DTE speed then can support to 230,400bps.
|
| Q
3. the
differences between the external ISDN TA and the ISDN add-on
card? |
|
A
3.
The external ISDN TA has S/T port, analog port and data
port on it; it needs no setting on IRQ and I/O port address
while the ISDN add-on card needs setting the IRQ and I/O
port configuration.
|
| Q
4. the Screen incoming call function? |
|
A
4.
Screen Incoming Call function supplies users with listing
their phone numbers in the screen incoming call table as
well as answering the incoming phone call from the table
list only.
|
| Q
5. using the Screen Incoming Call function? |
|
A
5.
In AT command mode:
1. Setting
Screen Call Number on Analog port A
- "AT*ZAn=
tel no."
n=1~5 (There are 5 Screen Call numbers in total)
- "AT$AS0"
enable Screen incoming call function; filter tel. on
- "AT$AS1"
accept all incoming call; filter tel. off
2. Setting
Screen Call Number on Analog port B
- "AT*ZBn=
tel no." n=1~5 (There are 5 Screen Call numbers totally)
- "AT$BS0"
enable Screen incoming call function; filter tel. on
- "AT$BS1"
accept all incoming call ; filter tel. off
3. Setting
Screen Call Number by Telephone Keypad
- Press
*128 11*1*Tel no.** Set Screen Call Number
- Press
*128 15*1** enable Screen incoming call function
- Press
*128 15*0** accept all incoming call
|
| Q
6. IS128SS Series--/SDN-TA Caller ID function? |
|
A
6.
ISDN-TA Caller ID function is for the Outgoing Call operation;
through this function, the senders can decide whether to
show their Caller ID or not.IS128SS-LCD and IS128SU-LCD
can also dislay the incoming phone number with caller ID
fucntion enabled. But the premiss is the local PTT should
supply the Caller ID function; some PTT switches don't supply
the function or may charge for the service.
|
| Q
7. Setting the ISDN TA driver up? |
|
A
7.
The followings are tips guiding you through configuration
of the TA on your PC with Windows 95/98/NT.( For other
DTE configurations, please refer to the PC manufacturer
manual or contact your local dealer. )
- Choose
"My Computer" icon.
- Open
the "Control Panel" menu box as shown on the right hand
side.
- After
double click Modem icon, "Modems Properties" box appear
and show the existing modems which has been installed previously.
- Click
"Add" button to add the TA.
- Tick
the box (don't detect my modem). Choose "Next" to select
TA's driver.
- In
"Install New Modem", click the "Have Disk" button and put
ISDN TA CD-ROM driver to drive D:
- Press
"OK" if the location of the driver disk is correct; otherwise,
you may press "Browse" button to change.
- Select
the modem to be installed. Click "Next" to continue.
- Choose
an available COM port which is available ( It should not
conflict other devices ) and click "Next" button.
- Press
"Finish" to complete setup.
|
| Q
8. Configuring the Dial-Up Network with Windows 95? |
|
A
8.
The tips below will guide you to configure the Dial-Up Network
with Windows 95.
- Choose
Dial-Up Network icon from "My Computer" window.
- Double
click the "Make New Connector" icon to create a connection.
- Choose
a protocol for ISDN TA and give this connection a name.
Then, press "Next" button.
- Enter
the correct country, area code and the phone number from
your ISP; then, press "Next".
- Reconfirm
the connection and press "Finish" button.
- The
new connection of ML-PPP completes and a new icon of it
appears. You may make future modifications by checking the
contents of function.
|
| Q
9. u-low
coding and a-low coding? |
|
A
9.
The a-low coding is used in Europe, mainland China, and
Australia; the u-low coding is used in America, Japan and
Taiwan. Normally the ISDN TA is set to a-low coding as default.
Users can change the default value by resetting the hardware
and giving the commands below in AT command mode:
- "AT*L0"
select a-low coding; the number of Codec IC ( hardware )
must be No. TP3057
- "AT*L1"
select u-low coding; the number of Codec IC ( hardware )
must be No. TP3054
|
| Q10.
the S register functions of BOD feature? |
|
A10.
Making
Another B Channel Up in AT Command Mode.
1.
S Register 107: BOD Throughput ( channel data flow control
)
- "ATS107=1~
6" set " how fast" the B channel data flow is ( range:
10 ~ 60 kbps )
2.
S Register 141: BOD add monitor
- "ATS141=
m" set " how often" the device checks the data flow
( m = seconds/ per time)
3.
S Register 143: BOD add last Time
- "ATS143=
n" set " how long " another B channel will auto up
to support the original one ( n= m * counting times )
Example:
ATS107=
1 >>the B channel data flow=10kbps
ATS141=
5 >>the device checks the data flow every 5 seconds
ATS143=30
>>the
device counts 6 times of ATS141=5
( if
the data flow >= 10kbps 6 times, another B channel will
auto up to support the original B chanel. That is to say,
two B channels Tx/Rx(transmit/ receive) the file data at
the same time. )
Making
Another B Channel Down in AT Command Mode.
1.
S Register 144: BOD Cut monitor Time
- "ATS144=
m" set
" how often" the device checks the data flow ( m = seconds/
per time)
2.
S Register 146: BOD Cut last Time
- "ATS146=
n" set
" how long " the second B channel will auto down and close
( n= m * counting times )
Example:
ATS107=
1 >>the
B channel data flow=10kbps
ATS144=
5 >>the
device checks the data flow every 5 seconds
ATS146=30
>>the
device counts 6 times of ATS144=5
( if
the data flow <= 10kbps 6 times, the second B channel
will auto down and close . That is to say, only one B channel
remains to Tx/Rx (transmit/receive) the file data then.)
|
Contact Taicom
