Siemens 600Series - Manual (Page 75)

Making Calls 3-17
3.
Makin
g
Calls
Direct Trunk Select
Direct Trunk Select lets you choose a particular trunk (outside line) for
placing a call.
To choose a
trunk ➩ Get a dial tone.
➩ Press the Direct Trunk Select (DTS) key,
or dial # # 8.
➩ Dial the number assigned at the
communications server for the specific
trunk you want.
➩ Dial the outside number.