This controls whether the HMTS monitoring service is active active - The HMTS is actively looking for traps and non-responding devices on the serial links. Fully Enabled functionality of the HMTS. inactive - The HMTS does not poll devices to search for non-respondering devices or alarms (Synchronous or Asynchronous), but HMTS continues all other activities. Contention mode is set to OFF while inactive. This disables registration as well as polling. No messages from a higher level manager will be forwarded to the devices. In essence all directed communication to or from the device is disabled. In both states SNMP requests to configured serial equipment is possible. Sending CHNLDESC and TIME PDUs continues at their configured intervals. This object is non-volatile.