If you are talking about the voice stream packets, then they use Real Time Protocal (RTP) which use UDP ports. RTP does not provide mechanisms to ensure timely delivery out of order delivery is still possible, and flow and congestion control are not directly supported. However, the protocols do deliver the necessary data to the application to make sure it can put the received packets in the correct order. Also, RTP Control Protocol (RTCP) provides information about reception quality which the application can use to make local adjustments. For example if a congestion is forming, the application could decide to lower the data rate.
So in essence the packets can be delivered out of order (jitter) resulting in bad voice quality such as choppy or garbbled voice.
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.