4 Feature GuideFor further details, please refer to the on-line help of the Maintenance Console (3.2.1 Installing and Starting the Maintenance Console).Feature HighlightsNetworking FeaturesThis PBX supports the following networking features:TIE Line ServiceA TIE line is a privately leased communication line between two or more PBXs, whichprovides cost effective communications between company members at different locations.( 1.28.1 TIE Line Service)Virtual Private Network (VPN)VPN is a service provided by the telephone company. It uses an existing line as if it werea private line. ( 1.28.2 Virtual Private Network (VPN))QSIG NetworkQSIG is a protocol which is based on ISDN (Q.931) and offers enhanced PBX features ina private network. ( 1.28.3 QSIG Network)Voice over Internet Protocol (VoIP) NetworkThe PBX can connect to another PBX via a private IP network. In this case, voice signalsare converted into IP packets and sent through this network. ( 1.28.4 Voice over InternetProtocol (VoIP) Network)Built-in Small Call Centre FeaturesAn incoming call distribution group ( 1.2.2 Incoming Call Distribution Group Features) canbe used as a small call centre with the following features:Queuing FeatureWhen a preprogrammed number of extensions in an incoming call distribution group arebusy, additional incoming calls can wait in a queue. While calls are waiting in the queue,the calls are handled by the Queuing Time Table, which can be assigned for each timemode (day/lunch/break/night). ( 1.2.2.3 Queuing Feature)Log-in/Log-outIncoming call distribution group members can join (Log-in) or leave (Log-out) the groupsmanually. While logged-in, a member extension can have a preprogrammed time periodautomatically for refusing calls after completing the last call (Wrap-up). ( 1.2.2.6 Log-in/Log-out)VIP CallIt is possible to assign a priority to incoming call distribution groups. If an extensionbelongs to multiple groups and the extension becomes idle, queuing calls in the groupswill be distributed to the extension in priority order. ( 1.2.2.4 VIP Call)Computer Telephony Integration (CTI) FeaturesConnecting a personal computer (PC) to this PBX (via a DPT, or via a Server PC on a LAN)enables extension users to make use of advanced features by using the stored data in the PCor in the Server PC. ( 1.29.1 Computer Telephony Integration (CTI))Voice Mail FeaturesThis PBX supports Voice Processing Systems (VPS) with DTMF Integration as well as DPT(Digital) Integration. ( 1.23 Voice Mail Features)