Conferencing across WAN causes very poor VOIP quality g711u to g729b
When I add a phone across the WAN onto a conference call the quality is terrible. I did a show sccp conn on the router but do not know what to look for. Any idea what could be causing the poor quality? tnks!
Re: Conferencing across WAN causes very poor VOIP quality g711u
g729br8 has silence supression built into the codec. Are you experiencing static and partial audio drops? Silence suppression can cause that.
You may want to try disable g729br8 on CM and see if behavior changes:
CM Service Parameters> Strip G.729 Annex B> True
Otherwise, you may have packet loss somewhere. If you invoke a transcoder, there aren't great ways to get RTP stats of the conference bridge. You'd want to get a packet capture at the conference resource for a bad call and look for packet loss/jitter. You'd also want to see if any IP phones which hear an issue report packet loss/jitter for the call (check http:// and go to 'Stream 1').
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.