Disconnect Notification
Use the disconnect notification feature to reduce delays resulting from disconnects. These delays occur
when using the CT Voice application.
When you enable this feature, it causes the system to send a DTMF “A” digit to IST station ports
whenever the distant party (internal or external) hangs up. The system also sends a disconnect digit when
an IST telephone signals a hookflash to retrieve a line from hold that has been dropped through abandon
hold release.
Installers must enable line disconnect supervision for this feature to function on outside calls. This feature
is disabled at default.
During station class of service data printout, the disconnect notification status is included on the printout.
A-30a Digital Telephone System Features
IMI66-132
DSU II Digital Telephone System
TAB004 – page 7
Summary of Contents for DSU II
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