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Dialogic
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PBX Integration Board User’s Guide
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4.7.7. Setting the Message Waiting Indicator
The Dialogic
®
PBX Integration Board can set the Message Waiting Indicator
(on or off) on another extension using the dx_dial( ) function and the
appropriate dial string. Refer to the Dialogic
®
PBX Integration Software
Reference
for more information about dialing programmable keys.
NOTE: Message Waiting can also be set using the dx_dial( ) function and
the appropriate dial string to press the Feature Key assigned to send
messages. However, you can use the dx_dial( ) function as described
so that your application will maintain functionality across different
manufacturers’ switches.
The application must set the MWI ON and MWI OFF feature access codes
using the d42_setparm( ) function. Otherwise, the MWI operation cannot be
done by the Dialogic
®
PBX Integration Board connected to the NEC PBX.
The following parameters must be set:
• D4BD_MSGACCESSON (0x0A) to store the feature access code for
MWI ON. A string value should be passed as the parameter value. A
value of **9 is stored by default by the system service at startup time.
• D4BD_MSGACCESSOFF (0x0B) to store the feature access code for
MWI OFF. A string value should be passed as the parameter value. A
value of ##9 is stored by default by the system service at startup time.
The following code demonstrates how the d42_setparm( ) function can be
used in this context:
char str parmval[8]; // cannot be more than 8 characters long
int paramNumber;
paramNumber = D4BD_MSGACCESSOFF; // or D4BD_MSGACCESSON
if ( (rc = d42_setparm(devh, paramNumber, (void *)&str_parmval[0])) == -1)
{
// error processing
} // end d42_setparm
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