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312 ICX (International) issued June 2000 ICX-50-700
Chapter 7. SLT Features Section 700 - Operation
• FF5-2: MCO Trunk Group (Outbound)
• FF7: ARS/TRS (Call Barring)
Considerations
• The System supports up to 576 outside lines in a six-CCU 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
Trunk Queuing
Description
When you try to originate a call by MCO (enter 9 [UK/HK] or 0 [Taiwan, Malaysia, Indonesia]) 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.
Operation
To set Trunk Queuing:
MCO Group Trunk Access Code
MCO1
9 (UK/HK) or 0 (Taiwan,
Malaysia, Indonesia)
MCO2 81
MCO3 82
MCO4 83
MCO5 84
Action Result
1. Lift the handset. Intercom dial tone
2. Enter trunk access code. Busy tone
3. Enter the Callback Request code (default = 3 [UK/HK] or
3# [Taiwan, Malaysia, Indonesia]).
4. Replace the handset.
5. Wait for the Trunk Callback alert tone.