Section 3: Features
Product Description 61
3
Dial Tone Detection
Description
If a trunk has Dial Tone Detection enabled, the system monitors for dial tone from the telco or PBX
when a user places a call on that trunk. If the user accesses the trunk directly (by pressing a line key or
dialing #9 and the trunk’s number), the system will drop the trunk if dial tone does not occur. If the user
access the trunk via a Trunk Group (by dialing a trunk group code or automatically through a feature like
Last Number Redial), the system can drop the trunk or optionally skip to the next trunk in the group.
Dial Tone Detection is available for the following features:
● Automatic Route Selection
● Abbreviated Dialing
● Central Office Calls, Placing
● Last Number Redial
● Loop Keys (outbound)
● Save Number Dialed
● T1 Trunking (with ANI/DNIS Compatibility)
● Tie Lines
● Trunk Group Routing
● Trunk Groups
Aspire
• Available
• Allocating CDTU circuits for Dial Tone Detection is required.
• Tone Detection Setup is available.
• The Next Trunk in Rotary if No Dial Tone option is available.
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