28 S-ICX (International) issued October 2000 S-ICX-50-700Chapter 3. System Features Section 700 - Operation• Alpha tagging if matched• Currently Caller ID only supports the single format (number only). Multiple format (number andname) is not currently available but is planned as a future feature.• Caller ID Call Logging only shows the CID number.Centrex/PBX CompatibilityDescriptionCentrex/PBX Compatibility allows the System to be connected behind centrex or PBX lines.The System supports up to 6 access codes for dialling centrex or a PBX. These access codes allow theSystem, System Message Detail Recording (SMDR) (Call Logging) output to exclude the numberdialled to reach a centrex or PBX line.When connected behind a PBX or Centrex, Toll Restriction Service (TRS) (Call Barring) can be usedto restrict calls.The System also supports transmission of a flash signal over the centrex or PBX link.Hardware Requirements• N/AConsiderations• N/AClass of ServiceDescriptionA Class of Service (COS) allows or restricts access to a group of features or functions. For instance,an Extension COS may allow Call Forwarding features. In the System, both extensions and trunks useclasses of service.The System supports the following COSs for trunks and extensions:• COS - Trunk/Tie• COS - Ext/Ext Restriction• COS - Extension Feature• COS - Trunk to Trunk RestrictionClass of Service - Trunk/TieTie/Trunk COS allows or restricts access to various features. Each trunk is assigned to one of 16 trunkclasses of service (00-15).The following table shows the features that can be enabled/disabled for each trunk COS.
