Section 700 - Operation Chapter 5. Key Telephone Features
576-13-700 DBS 576 (USA), Revised 6/11/98 193
To seize an idle trunk:
Hardware Requirements
•N/A
Related Programming
FF1-3: MCO Access
FF1-2: Dial Plan
FF5-2: MCO Trunk Group (Outbound)
FF7: ARS/TRS
Considerations
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 14. MCO Trunk Access Codes
Action Result
1. Lift the handset or press the ON/OFF key. Intercom dial tone
2. Enter the trunk access number (9 or 81-84). (See Table 14.) • Outside dial tone
CO XXX displays (where XXX = trunk
number)
3. Dial the phone number. Dialed phone number displays
MCO Group Trunk Access Code
MCO1 9
MCO2 81
MCO3 82
MCO4 83
MCO5 84