AT&T MERLIN LEGEND Installation & Maintenance Manual page 50

System Description
The options for each DID trunk group are as follows:
Type
wink-start (factory setting)
immediate-start
Expected Digits
3 (factory setting)
1–4
Delete Digits
0 (factory setting)
0–4
Add Digits
0 (factory setting)
1- to 4-digit number (1 to 9999)
SignaIing
rotary (factory setting)
touch-tone
Invalid Destination
backup position (factory setting)
return to fast busy
100D Module
The 100D module is the interface that connects a DS1 facility to
the system. It can be configured for T1 or Integrated Services
Digital Network Primary Rate Interface (ISDN-PRI) service (see
"DS1 Capabilities" later in this chapter).
Control Unit 1-19