Chapter 7. SLT Features
FF5-2: MCO Trunk Group (Outbound)
The System supports up to 576 outside lines in a six-cabinet configuration. These lines can be
divided into 99 different trunk groups.
Each trunk group can support up to 50 outside lines.
Each MCO Tenant Group can have up to 5 MCO trunk access codes. System defaults for MCO
trunk access codes are displayed in the following table.
MCO1 can have up to 5 trunk groups assigned by the Advanced Trunk Group feature.
MCO1 access code is used for Automatic Route Selection (ARS) access code.
Table 24. MCO Trunk Access Codes
CPC-96, CPC-288, and CPC-576 All Versions
When you try to originate a call by MCO (enter 9) and all outside lines in a trunk group are busy, the
System can call you when a line becomes free. Simply pick up the handset and dial the telephone
number when the Trunk Callback alert tone rings.
To set Trunk Queuing:
1. Lift the handset.
2. Enter a trunk access code.
3. Enter the Callback Request code (default = 3).
4. Replace the handset.
5. Wait for the Trunk Callback alert tone.
Trunk Access Code
DBS 576 (USA), issued January 1999
Section 700 - Operation
Intercom dial tone