Vertical Communications DSU and DSU II Telephone User Manual


 
NOTE: The system will return the caller to DISD dial tone two
additional times and then drop the line.
If called station is busy but is part of a hunt group, DISD call is
routed to idle station in hunt group, if available; otherwise, the call is
camped-on at dialed station. Hunt group is followed when caller hears
ringing but receives no answer.
If an invalid extension number is dialed, an error tone is sounded
before DISD dial tone is returned (caller can redial). If mistake in
dialing is made, caller can dial for new DISD dial tone.
If extension number dialing is not completed within the programmed
dial time limit, call is routed to DISD assist station if available;
otherwise, the line is dropped.
NOTE: See section 2.14 for DVA programming used with the DISD
feature.
GCA70–245 Programming The Attendant Features
LCD Speakerphone Reference Manual 2–7