AT&T MERLIN LEGEND Key System Planning page 62

Lines
Rotary Dial Lines
Toll Prefix Dialing Requirements (Toll Type)
Hold Disconnect
3-8
Line Options
The system is factory set to generate touch-tone signals when users dial outside
calls. Identify any rotary dial lines that are connected to the system so that rotary
dial signals can be used for these lines.
Note: Touch-tone single-line telephone users cannot make calls using lines
programmed for rotaary operation.
Check with your local or long-distance telephone company to determine which,
if any, lines connected to the system are rotary dial lines.
Planning Form Instructions
In the "Outmode Rotary Dial" column on Form 2c, check "Yes" to show rotary
dial lines or "No" to show touch-tone.
Toll Type allows the system to classify calls as either local or toll, based on the
number dialed by the user. Normally, people have to dial a toll prefix (1 or 0)
before dialing the area code and telephone number for a toll call. In some areas
this is not necessary; dialing a prefix depends on local telephone company
requirements and the type of line used.
Find out from your local telephone company which lines require a toll prefix. This
information is used by the system when a toll call is placed by a telephone or
data terminal on ground-start or loop-start lines.
Note: The Toll Type feature does not apply to tie trunks.
Planning Form Instructions
In the "Toll Prefix Not Needed for LD" column on Form 2c, check "Yes" next
to any lines that do not need a prefix for toll calls.
Hold Disconnect allows you to set the number of milliseconds (ins) before the
line is released when a caller on hold hangs up and abandons the call. Local
telephone companies use either a long (450 ms) or short (50 ms) interval. The
factory setting for the system is the long interval since it is the interval used by
most telephone companies.
Check with your local telephone company for the disconnect interval used.
If your local telephone company uses the short interval, you must change the
factory setting. If you don't change the setting, when a caller waiting on hold
hangs up, the line is not released.