echo cancellation and mod_conference
Hi. I have some sip callers who call in on what are apparently bad lines and get echo when calling into conferences -- not freeswitch ones yet. So, I am wondering in mod_conference is there any attempt to do echo cancellation, if so I will try to have them call into an fs one instead. Its intermittent, so I wanted to find out first before I test. Thanks in advance for any suggestions. -- Your life is like a penny. You're going to lose it. The question is: How do you spend it? John Covici covici@ccs.covici.com
Acoustical Echo Cancel would be rather resource intensive, Why not instruct your users to acquire proper endpoints? :) Most Optimal... probably least favorable. I for one advocate for endpoints that handle their own nat traversal, echo cancel leaving the registrar/freeswitch no avoid that sort of heavy lifting. On Sun, Nov 30, 2014 at 5:43 AM, <covici@ccs.covici.com> wrote:
Hi. I have some sip callers who call in on what are apparently bad lines and get echo when calling into conferences -- not freeswitch ones yet. So, I am wondering in mod_conference is there any attempt to do echo cancellation, if so I will try to have them call into an fs one instead. Its intermittent, so I wanted to find out first before I test.
Thanks in advance for any suggestions.
-- Your life is like a penny. You're going to lose it. The question is: How do you spend it?
John Covici covici@ccs.covici.com
_________________________________________________________________________ Professional FreeSWITCH Consulting Services: consulting@freeswitch.org http://www.freeswitchsolutions.com
Official FreeSWITCH Sites http://www.freeswitch.org http://confluence.freeswitch.org http://www.cluecon.com
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-- *Brian West* brian@freeswitch.org *Twitter: @FreeSWITCH , @briankwest* http://www.freeswitchbook.com http://www.freeswitchcookbook.com *T:*+19184209001 | *F:*+19184209002 | *M:*+1918424WEST (9378) *iNUM:*+883 5100 1420 9001 | *ISN:*410*543 | *Skype:*briankwest
Its not the endpoint itself, but something in the pstn -- if they call in say a number of times, the echo will stop, it seems to be something in the Verizon equipment, this is why I was hoping for fs to do something. Thanks. Brian West <brian@freeswitch.org> wrote:
Acoustical Echo Cancel would be rather resource intensive, Why not instruct your users to acquire proper endpoints? :) Most Optimal... probably least favorable. I for one advocate for endpoints that handle their own nat traversal, echo cancel leaving the registrar/freeswitch no avoid that sort of heavy lifting.
On Sun, Nov 30, 2014 at 5:43 AM, <covici@ccs.covici.com> wrote:
Hi. I have some sip callers who call in on what are apparently bad lines and get echo when calling into conferences -- not freeswitch ones yet. So, I am wondering in mod_conference is there any attempt to do echo cancellation, if so I will try to have them call into an fs one instead. Its intermittent, so I wanted to find out first before I test.
Thanks in advance for any suggestions.
-- Your life is like a penny. You're going to lose it. The question is: How do you spend it?
John Covici covici@ccs.covici.com
_________________________________________________________________________ Professional FreeSWITCH Consulting Services: consulting@freeswitch.org http://www.freeswitchsolutions.com
Official FreeSWITCH Sites http://www.freeswitch.org http://confluence.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
--
*Brian West* brian@freeswitch.org
*Twitter: @FreeSWITCH , @briankwest* http://www.freeswitchbook.com http://www.freeswitchcookbook.com
*T:*+19184209001 | *F:*+19184209002 | *M:*+1918424WEST (9378) *iNUM:*+883 5100 1420 9001 | *ISN:*410*543 | *Skype:*briankwest
---------------------------------------------------- Alternatives:
---------------------------------------------------- _________________________________________________________________________ Professional FreeSWITCH Consulting Services: consulting@freeswitch.org http://www.freeswitchsolutions.com
Official FreeSWITCH Sites http://www.freeswitch.org http://confluence.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 -- Your life is like a penny. You're going to lose it. The question is: How do you spend it?
John Covici covici@ccs.covici.com
Sadly there probably doesn't exist a silver bullet to solve this problem... it will always be an uphill battle without a resolution... the real solution is to open tickets with upstream providers till its resolved, but I'm sure you could retire before they'd actually find/fix it unless complain daily for weeks on end. On Mon, Dec 1, 2014 at 9:15 AM, <covici@ccs.covici.com> wrote:
Its not the endpoint itself, but something in the pstn -- if they call in say a number of times, the echo will stop, it seems to be something in the Verizon equipment, this is why I was hoping for fs to do something.
Thanks.
Brian West <brian@freeswitch.org> wrote:
Acoustical Echo Cancel would be rather resource intensive, Why not instruct your users to acquire proper endpoints? :) Most Optimal... probably least favorable. I for one advocate for endpoints that handle their own nat traversal, echo cancel leaving the registrar/freeswitch no avoid that sort of heavy lifting.
On Sun, Nov 30, 2014 at 5:43 AM, <covici@ccs.covici.com> wrote:
Hi. I have some sip callers who call in on what are apparently bad lines and get echo when calling into conferences -- not freeswitch ones yet. So, I am wondering in mod_conference is there any attempt to do echo cancellation, if so I will try to have them call into an fs one instead. Its intermittent, so I wanted to find out first before I test.
Thanks in advance for any suggestions.
-- Your life is like a penny. You're going to lose it. The question is: How do you spend it?
John Covici covici@ccs.covici.com
Professional FreeSWITCH Consulting Services: consulting@freeswitch.org http://www.freeswitchsolutions.com
Official FreeSWITCH Sites http://www.freeswitch.org http://confluence.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
--
*Brian West* brian@freeswitch.org
*Twitter: @FreeSWITCH , @briankwest* http://www.freeswitchbook.com http://www.freeswitchcookbook.com
*T:*+19184209001 | *F:*+19184209002 | *M:*+1918424WEST (9378) *iNUM:*+883 5100 1420 9001 | *ISN:*410*543 | *Skype:*briankwest
---------------------------------------------------- Alternatives:
---------------------------------------------------- _________________________________________________________________________ Professional FreeSWITCH Consulting Services: consulting@freeswitch.org http://www.freeswitchsolutions.com
Official FreeSWITCH Sites http://www.freeswitch.org http://confluence.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 -- Your life is like a penny. You're going to lose it. The question is: How do you spend it?
John Covici covici@ccs.covici.com
_________________________________________________________________________ Professional FreeSWITCH Consulting Services: consulting@freeswitch.org http://www.freeswitchsolutions.com
Official FreeSWITCH Sites http://www.freeswitch.org http://confluence.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
-- *Brian West* brian@freeswitch.org *Twitter: @FreeSWITCH , @briankwest* http://www.freeswitchbook.com http://www.freeswitchcookbook.com *T:*+19184209001 | *F:*+19184209002 | *M:*+1918424WEST (9378) *iNUM:*+883 5100 1420 9001 | *ISN:*410*543 | *Skype:*briankwest
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Brian West
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covici＠ccs.covici.com