The Incoming Interdigit Service is used to configure E1/T1 dial plan for the incoming calls from CO/PBX to the Quadro. This service allows you to speed up the call establishment procedure by detecting the prefix. The calls will be speed up by the timeout defined in the Incoming Digits Timeout text field.
When the system detects incoming dialed number starting with any of the prefixes listed in the Incoming Interdigit Service table, it will wait for the rest of the digits, as specified for the corresponding prefix in the Incoming DNIS Size text field (see below). Once all digits are received, the system will route the call to the destination.
The Incoming Interdigit Service page lists a table with existing E1/T1 dial plan entries and allows you to manage them. By default, the table on the Incoming Interdigit Service page lists the locale specific (selected from the System Configuration Wizard) E1/T1 dial plan settings. For some countries, this table may however be empty.
The following buttons serve to modify the E1/T1 dial plan entries or to add new ones:
Add opens the Add Entry page where a new E1/T1 dial plan entry can be configured. This page consists of the following components:
The Incoming DNIS Prefix text field requires the prefix of the incoming dialed number. '[' , ']' , ',', '-', are used to define a range or a quantity of prefixes. For example, 2[5-9] means that the prefix of the dialed number may be 25, 26, 27, 28, or 29. 3[4,7,0] means that the prefix of the dialed number may be 34, 37 or 30. Only one range of prefixes can be defined in the Incoming DNIS Prefix text field.
The Incoming DNIS Size text field requires the total length of the dialed number, including the prefix digits. The number defined in this field should be greater than the longest prefix defined in the Incoming DNIS Prefix text field, otherwise the error message will appear.
The Description text field requires an optional description for an E1/T1 dial plan entry.
Edit used to modify E1/T1 dial plan settings.
Delete removes the selected E1/T1 dial plan entries from the table.
Restore Default Settings restores the locale specific E1/T1 dial plan entries.
Select all checks all existing table entries.
Inverse Selection inverses the current selection (if no entries are selected, clicking on inverse selection will check all entries).