Mitel SX-200 Documentation page 222

SECT I ON MITL9105/9110-096-105-NA
If multiple Trunk Group Access is required, assign a maximum of
l
10 access codes to, Feature Numbers 33-42 for access to Trunk
Group 1 only.
Operation
Dial the appropriate number - ringing tone is returned from the
l
tandem office.
Page
167