252 ICX (International), issued March/1999 ICX-35-700Chapter 6. DSLT Features Section 700 - OperationOperationTo seize an idle trunk:Hardware Requirements• N/AConsiderations• The System supports up to 576 outside lines in a six-CCU configuration. These lines can bedivided 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 MCOtrunk 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 22. MCO Trunk Access CodesTrunk QueuingCPC-96, CPC-288, and CPC-576 All VersionsDescriptionWhen you try to originate a call by MCO (enter 9 [UK/HK] or 0 [Taiwan, Malaysia, and 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.Action Result1. Lift the handset or press the ON/OFF key. Intercom dial tone2. Enter the desired trunk access number (default = 9 [UK/HK], 0 [Taiwan, Malaysia, Indonesia], or 81-84). (See Table22.)Outside dial tone3. Dial the phone number.MCO Group Trunk Access CodeMCO1 9 (UK/HK) or 0 (Taiwan,Malaysia, Indonesia)MCO2 81MCO3 82MCO4 83MCO5 84
