Got a customer who's complaining that short words are being lost in conversations over VOIP/Freeswitch. I presume this is over-enthusiastic silence suppression which could be tweaked in the freeswitch config. I wondered if this might be a handset config issue, but they claim that they can use their handsets with other VOIP providers that don't show the same problem. Any tips?
Start with pcapsipdump. Get pcaps of all these calls. Then have the customer report to you the date, time, caller and callee of such an occurrence. Locate the pcap and listen to it in Wireshark. See if the "dropout" occurs in the audio stream or if there is a possible loss of packets, etc. That should yield some clues as to where to go next. If you are really suspicious of the silence suppression stuff then you might want to turn it off and see what happens. -MC On Fri, Feb 22, 2013 at 3:04 AM, Alex Lake <alex@digitalmail.com> wrote:
Got a customer who's complaining that short words are being lost in conversations over VOIP/Freeswitch.
I presume this is over-enthusiastic silence suppression which could be tweaked in the freeswitch config.
I wondered if this might be a handset config issue, but they claim that they can use their handsets with other VOIP providers that don't show the same problem.
Any tips?
_________________________________________________________________________ Professional FreeSWITCH Consulting Services: consulting@freeswitch.org http://www.freeswitchsolutions.com
FreeSWITCH-powered IP PBX: The CudaTel Communication Server http://www.cudatel.com
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-- Michael S Collins Twitter: @mercutioviz http://www.FreeSWITCH.org http://www.ClueCon.com http://www.OSTAG.org
There is nothing of the sort enabled by default anywhere except conference calls. Regular calls are passed through unaltered unless you maybe have a transcoding path so if its happening in that setting its not FS doing it and more likely the TDM gateway or cell phone. Get someone to reproduce it and take a pcap of the call, you should be able to extract the audio and see if any is missing. On Fri, Feb 22, 2013 at 12:29 PM, Michael Collins <msc@freeswitch.org>wrote:
Start with pcapsipdump. Get pcaps of all these calls. Then have the customer report to you the date, time, caller and callee of such an occurrence. Locate the pcap and listen to it in Wireshark. See if the "dropout" occurs in the audio stream or if there is a possible loss of packets, etc. That should yield some clues as to where to go next.
If you are really suspicious of the silence suppression stuff then you might want to turn it off and see what happens.
-MC
On Fri, Feb 22, 2013 at 3:04 AM, Alex Lake <alex@digitalmail.com> wrote:
Got a customer who's complaining that short words are being lost in conversations over VOIP/Freeswitch.
I presume this is over-enthusiastic silence suppression which could be tweaked in the freeswitch config.
I wondered if this might be a handset config issue, but they claim that they can use their handsets with other VOIP providers that don't show the same problem.
Any tips?
_________________________________________________________________________ Professional FreeSWITCH Consulting Services: consulting@freeswitch.org http://www.freeswitchsolutions.com
FreeSWITCH-powered IP PBX: The CudaTel Communication Server http://www.cudatel.com
Official FreeSWITCH Sites http://www.freeswitch.org http://wiki.freeswitch.org http://www.cluecon.com
FreeSWITCH-users mailing list FreeSWITCH-users@lists.freeswitch.org http://lists.freeswitch.org/mailman/listinfo/freeswitch-users UNSUBSCRIBE:http://lists.freeswitch.org/mailman/options/freeswitch-users http://www.freeswitch.org
-- Michael S Collins Twitter: @mercutioviz http://www.FreeSWITCH.org http://www.ClueCon.com http://www.OSTAG.org
_________________________________________________________________________ Professional FreeSWITCH Consulting Services: consulting@freeswitch.org http://www.freeswitchsolutions.com
FreeSWITCH-powered IP PBX: The CudaTel Communication Server http://www.cudatel.com
Official FreeSWITCH Sites http://www.freeswitch.org http://wiki.freeswitch.org http://www.cluecon.com
FreeSWITCH-users mailing list FreeSWITCH-users@lists.freeswitch.org http://lists.freeswitch.org/mailman/listinfo/freeswitch-users UNSUBSCRIBE:http://lists.freeswitch.org/mailman/options/freeswitch-users http://www.freeswitch.org
-- Anthony Minessale II FreeSWITCH http://www.freeswitch.org/ ClueCon http://www.cluecon.com/ Twitter: http://twitter.com/FreeSWITCH_wire AIM: anthm MSN:anthony_minessale@hotmail.com GTALK/JABBER/PAYPAL:anthony.minessale@gmail.com IRC: irc.freenode.net #freeswitch FreeSWITCH Developer Conference sip:888@conference.freeswitch.org googletalk:conf+888@conference.freeswitch.org pstn:+19193869900
participants (3)
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Alex Lake
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Anthony Minessale
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Michael Collins