Hi Folks , has anyone ever seen where phones don?t report any latency in the CDR records even though you know there is, is there a service parameter that may have been changed?? I know this is standard, and the phone picks up the NTP timestamp from the RTP packets and calculates it from there. LAN calls appear to have 0 latency but not sure about WAN calls , any ideas thanks
latency value is an estimate of the network latency, expressed in milliseconds. This is the average value of the difference between the Network Time Protocol (NTP) timestamp indicated by the senders of the RTCP messages and the NTP timestamp of the receivers, measured when these messages are received. The average is obtained by summing all the estimates, then dividing by the number of RTCP messages that have been received.Jitter and latency are only measures for incoming packets trough a WAN, to the endpoint, because generally on a LAN there is enough bandwidth not to worry about quality.The incoming packets are the ones generated by Call Management Record (CMR) records. In order to determine QoS, three factors are used. They are lost packets, jitter, and latency. This latency has no default values, so in the test environment, the value of 0 could be true depending on how packets are buffered and by what device.
Are you getting this error “Installer User Interface Mode Not Supported. The installer cannot run in this UI mode. To specify the interface mode, use the -i command-line option, followed by the UI mode identifier. The value UI mode identifiers...
The below trick might come handy when you have to add a new node to a cluster but you don't have or is unsure of the security password for the publisher. This procedure has been around for ages.
1) Login into the CLI of the Publisher.