CTI Products NCB/IM with Internal PSTN Modem User Manual
Page 27
CTI Products, Inc.
NCB/IM User Guide
3. Network Variable Control
21
Request Dial String (Output)
C Language Syntax
network output SNVT_char_ascii nvoReqDialStr1;
network output SNVT_char_ascii nvoReqDialStr2;
Usage
This output network variable is associated with Perpetual Dial-Up Mode (see Tutorial
“Which Modem Mode Should Be Used” in section “2.
”) and is used
when the Directory Object storing the telephone number (to be dialed) belongs to a node
other than the call-originating NCB.
Valid Range
0-F (Hex)
When Transmitted
Transmitted when the Modem Controller Object senses that a connection is not made.
Perpetual Dial-up Mode
The NCB module can be configured to provide a “perpetual” connection using the ‘dial-up’ mode
of the modem, with no runtime user or application intervention required to initiate or maintain a
constant modem connection. See “A
for more details of Perpetual
Dial-up Mode.
There are two methods available for implementing a “perpetual” connection using Dial-up mode:
1) The first method uses only configuration properties. This method is useful when the Directory
Object storing the telephone number (to be dialed) belongs to the dialing NCB module.
a) Specify an entry in an NCB’s Directory that contains the phone number to be dialed.
This can be accomplished using either the NCB/Plug configuration plug-in (discussed in
“Section 4. NCB/Plug” or using the “Dial Mode” Configuration Property (discussed later
in this section).
b) Set the “Dial Mode” (for the call-originating NCB) to “Perpetual”. This can be
accomplished most easily with the NCB/Plug configuration plug-in (discussed in
“Section “4. NCB/Plug” by accessing Dial Mode choices under the Modem Options
menu item. Changing the Dial Mode to Perpetual may also be accomplished by using
the “Dial Mode” Configuration Property (discussed later in this section).
2) The second method uses a combination of configuration properties and network variable
bindings. This method is useful when the Directory Object storing the telephone number (to
be dialed) belongs to a node other than the call-originating NCB.
a) Specify an entry in an NCB’s Directory that contains the phone number to be dialed.
This can be accomplished using either the NCB/Plug configuration plug-in (discussed in
“Section 4. NCB/Plug” or using the “Dial Mode” Configuration Property (discussed later
in this section). This step is the same as in the first method.
b) Set the “Dial Mode” to “Manual” mode (the default setting).
c) Make network variable bindings as shown in Figure 7.