Feature Manual References4.1.10 Call Transfer4.1.22 COS (Class of Service)5.1.7 DID (Direct Inward Dialing)5.1.10 DISA (Direct Inward System Access)9.1.5 Host PBX Access Code (Access Code to the Telephone Company from a Host PBX)10.1.3 ICD Group Features—Log-in/Log-out15.1.12 PRIVATE NETWORK FEATURES23.1 Capacity of System Resources18.1.7 SNMP (Simple Network Management Protocol) SystemMonitorDescriptionIt is possible for a PC assigned as an SNMP manager to manage and receive PBX system status information,such as alarm information and general system activity using SNMP. Management Information Bases (MIBs)are sent to a PC (i.e., the SNMP manager) connected to the PBX over a LAN and can then be stored andanalyzed using SNMP manager software.The two features for managing information using SNMP are as follows:– Polling:A bilateral transaction of information. Polling allows the manager to request information from the PBX.PCResponseRequestPBXManager– TRAP:An automatic relay of information from the PBX when a status change occurs or an alarm is detected.PBXPCSends InformationManagerTRAP ImplementationThe PBX will send the two types of TRAP as follows:Document Version 2016-03 Feature Manual 35718.1.7 SNMP (Simple Network Management Protocol) System Monitor