Heartbeat. In order to detect loss of communication between MGC and MG, the Inactivity Timer package [8] shall be used. This mechanism is only used by the MG to detect loss of communication with MGC. Loss of communication can be due to: • Loss of communication path between the MGC and MG • MGC becoming Out Of Service On startup, the MG will initialize the timer to 0. The MGC shall use the Maximum Inactivity Time event to arm the MG. A value of 30 seconds is recommended for this timer. A value of 0 will disable the inactivity timer. Each time, the MG receives any message; it will restart the Inactivity timer. If the MGC has no messages to send, in order to prevent the inactivity timer expiring, the MGC may send an Audit on the root termination. This will be the only keep alive mechanism used. On the inactivity timer expiring, on the MG, the following actions shall be performed: • MG shall send Notify on Root, with event=ito to the primary MGC. • If a Reply to the Notify is received, than the MG will restart the Inactivity timer and consider the MGC still accessible. • If no Reply to the Notify is received then the MG will send ServiceChange=Root with Method=disconnect, Reason=”MGC impending failure” to the primary MGC. • If a Reply to ServiceChage is received (without ServiceChangeMgcId of new MGC), than the MG will restart the Inactivity timer and consider the MGC still accessible. • If no Reply is received then the MG will send ServiceChange=Root with Method=disconnect to the secondary MGC (if configured on the MG). • The MG will periodically send . ServiceChange=Root with Method=disconnect to the primary and secondary MGC until it receives a Reply with ServiceChange=Root.
Heartbeat. As used herein, the term “Heartbeat” shall have the meaning set forth in Section I.B (Definitions) of Exhibit D (Service Level Requirements). Heartbeat Support System
Heartbeat. The table below illustrates the difference in resting heartbeats between mouse, man and elephant. Mouse Man 70 beats per minute Elephant 30 beats per minute NOTE: If your heart is beating as fast as the mouse or as slow as the elephant see a doctor immediately.
Heartbeat. When UDP is used as the transport protocol, then the Call Agent shall use the “AuditValue” command against the “ROOT” termination with an empty “Audit Descriptor” as a keep alive message for detecting loss of communications with the AG in the absence of other H.248 messages. If no reply is received to the “AuditValue” message, then the Call Agent shall determine that it has lost communication with the AG. It should be noted that this keep alive mechanism also complements the H.248.14 “
Heartbeat. Heartbeat is a message periodically sent to report device parameters and operating status regardless of device movement status. When the device is stationary, the application server can send downlink parameters or commands when receiving heartbeat messages.
Heartbeat. Company may in its sole discretion operate a “heartbeat” test from time-to-time, which checks in with Interactive Devices to identify the usage of Applications in connection with the Cricket Application Download Service. Company will not run “heartbeats” without express permission of customers. Cricket will have the sole discretion and the right to determine the: heartbeat run frequency, heartbeat timing (e.g. only between 2am-3am), heartbeat mechanism (e.g. AT&T Network, WiFi-only, etc.), and maximum per heartbeat data usage (e.g. not to exceed 1mb / per heartbeat) on the End User’s Interactive Device.”
