Multi-Tech Systems MT128ISA-UV - Manual (Page 16)

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Chapter 2 - Installation
MT128ISA/PCI
Configuring for Your ISDN Switch
Regardless of the operating system or application you are using, the installation process will request informa-
tion from you about the ISDN switch and your remote connection. Use the following information as a refer-
ence while configuring your software.
ISDN Switch Type
If you are not sure which switch type you are using, check with your ISDN provider.
Codec
Telephone companies use Codecs to convert signals transmitted over their networks. Telephone
service providers that adhere to U.S. telecommunications standards use u-law. Many European and
Asian telephone companies adhere to A-Law. Check with your ISDN provider if you are unsure which
value to select.
Standby Time
Standby time is a timer which buffers any keypad’s input from an analog device before sending a
message out. In general, this value will not need to be changed from the default value.
SPID
Certain U.S. ISDN switch types require SPID (Service Profile ID) information be configured in your
software. If required, your telephone company will provide the necessary SPID values. SPID1 refers
to the first ISDN line. SPID2 refers to the second ISDN line.
MSN (POTS)
MSN (Multiple Subscriber Number) is a supplementary service generally used by European ISDN
switches. MSN service provides the possibility of assigning multiple ISDN numbers to a single inter-
face. The POTS field is used to enter the phone number associated with a voice line. In a two
channel ISDN configuration, if the MSN (POTS) field is left blank, either number can ring. If a phone
number is entered, the number dialed on the incoming call must match the MSN (POTS) value for the
analog device connected to the POTS (voice) (a/b) port to be enabled.
SAD
SAD (Sub addressing) is used by certain European ISDN providers. If subaddresses are available in
your area enter the phone number in the format, 7706043*1, where 7706043 is the called (remote)
phone number and 1 is the subaddress. The phone number and subaddress are separated by *.
Protocol
In some configurations, you will need to select HDLC, X.75 Transparent, V.120 or Auto-Detection as
your incoming protocol. The incoming protocol selection is based upon the protocol of your ISDN
adapter. The outgoing protocol selection is based upon the protocol of the remote ISDN device to
which you are connecting.