User`s guide

Applications based on LNS 1.0 or 1.01 do not have full functionality with respect to
the SLTA-10 Adapter and modems because LNS 1.0 and 1.01 have default system
behavior that is incompatible with using the SLTA-10 Adapter through modems.
For
instance, an application based on LNS 1.0 and 1.01 terminates (i.e., shuts down) in a
manner that interferes with one the automatic dial-out initiation techniques. In LNS
1.0 or 1.01 when an LNS host application is terminated, all host network variables
and connections to these variables are removed from the LNS database. One way the
SLTA-10 Adapter can initiate a phone call, or automatically dial-out, is based on a
network variable update being sent to the SLTA-10 Adapter.
Since the termination of
the application on the PC host results in the removal of all network variable
connections to the host, no network variable update can be sent to the SLTA-10
Adapter. Thus, one of the two mechanisms that support automatic dial-out is
unavailable.
LNS 1.0 and 1.01 have no special knowledge of whether the SLTA-10 Adapter is
remotely connected through a pair of modems. However, LNS versions starting with
1.5 and higher automatically detect that the SLTA-10 Adapter is remote at
commissioning. Using a remote SLTA-10 Adapter affects the default system behavior
by allowing the system to function as desired. Upon termination of an application
based on LNS 1.5 or higher, the LNS host API will determine if the NSI uses modems
and if there are any explicitly bound network variables on the host.
If both of these
conditions are met, LNS does not remove the connections or host network variables.
In addition, LNS leaves the SLTA-10 Adapter configured. Thus, LNS 1.50 and later
versions fully support the SLTA-10 Adapter accessed through a modem configuration.
In summary, LNS 1.0 and higher versions fully support using the SLTA-10 Adapter
with modems. LNS 1.0 and 1.01 do not support the use of the SLTA-10 with modems,
although direct connect interfaces are supported.
Note: A remote (via modems) LNS Server requires a dedicated
SLTA- 10 Adapter. Thus, some networks may require multiple SLTA- 10
Adapters -one for the remote LNS Server and others to allow
access for other PCs.
TA PI Compatibility
The SLTALink Manager software uses TAP1 release 1.3 or higher. This is supported
in Windows NT 4.0 and higher, but not in Windows NT 3.51. Thus, Windows NT 3.51
does not support the use of the SLTA-10 Adapter with modems; however, Windows
NT 3.51 does support a direct connect interface.
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SLTA-10 Adapter Overview