Patent ID: 11956287
Assignee: UNIFY PATENTE GMBH & CO. KG
Field: Digital communication (Electrical engineering)
Classification: CPC H  G | IPC H

Claim 1:
2. The method of claim 1, wherein after the sending, by the one or more backup node and/or the surveillance unit, the additional first SIP OPTION message to the master node, the method further comprising:
(8) recalibrating and increasing, by the master node, the switchover timer values by sending a second SIP OPTION message comprising a new header indicating the altered switchover timer values, in case the heartbeat and/or the ARP ping fails, and the first SIP OPTION message has been answered with “200ok” by the master node in the preconfigured time value;
(9) repeating the method of steps 1, 2 and 8 until the heartbeat and/or ARP ping is successful; and
(10) storing, by the master node, the switchover timer values which did not cause a heartbeat and/or ARP ping failure in a database.