User`s guide

Dialogic
®
System Release 6.0 PCI for Windows
®
Release Update, Rev 62 — January 30, 2008 229
Dialogic Corporation
1.59 Enhanced Special Information Tone Frequency
Detection on Dialogic
®
DM3 Boards
This release provides the following enhancements to Special Information Tone (SIT)
frequency detection on Dialogic
®
DM3 Boards:
• Broader default SIT sequence definitions to allow greater coverage for SIT sequences
detected in the field.
• Three new SIT sequence definitions in the SIT tone set for DM3 Boards. The new SIT
sequences are: InterLATA no circuit (TID_SIT_NC_INTERLATA), InterLATA reorder
tone (TID_SIT_RO_INTERLATA), and ineffective other (TID_SIT_IO).
• A new catch all SIT sequence definition to cover SIT sequences that fall outside the
range of the defined SIT sequences.
• DM3 Board support for the ATDX_CRTNID( ) function to allow retrieval of the SIT ID.
Details on these enhancements are provided next.
1.59.1 New SIT Sequence Definitions
The table below provides the default tone definitions for SIT sequences used on DM3
Boards. This information is not currently documented in the Dialogic
®
Voice API Library
Reference in the Dialogic
®
System Release 6.0 PCI for Windows
®
bookshelf.
The table describes existing SIT sequences that have broader definitions as well as new
SIT sequences.
This table is explained in further detail:
• The values in the Freq. column represent minimum and maximum values in Hz.
• Time refers to minimum and maximum on time in 10 msec units; the maximum off
time between each tone is 5 (or 50 msec).
• The repeat count is 1 for all SIT segments.
• N/A means not applicable.
• For TID_SIT_ANY, the frequency and time of the first and second segments are open;
that is, they are ignored. Only the frequency of the third segment is relevant.
• The tone IDs have aliases:
– TID_SIT_NO_CIRCUIT (TID_SIT_NC)
– TID_SIT_OPERATOR_INTERCEPT (TID_SIT_IC)
– TID_SIT_VACANT_CIRCUIT (TID_SIT_VC)
– TID_SIT_REORDER_TONE (TID_SIT_RO)
– TID_SIT_NO_CIRCUIT_INTERLATA (TID_SIT_NC_INTERLATA)
– TID_SIT_REORDER_TONE_INTERLATA (TID_SIT_RO_INTERLATA)
– TID_SIT_INEFFECTIVE_OTHER (TID_SIT_IO)