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Re: About 5% of outgoing calls fail with one-way sound only - fix?

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Richmond <dnomhcir@gmx.com> wrote:
> Chris Green <cl@isbd.net> writes:
> 
> > Our VOIP is a straightforward (?) Yealink DECT system, a W70B base
> > station and five W73H handsets.  It works well for most calls but a
> > small percentage of outgoing calls fail with 'them' being able to hear
> > 'us' but we can't hear them.
> >
> > These are always (so far) calls to businesses or local government,
> > however it is just one or two that fail, most calls to banks etc. work
> > perfectly OK.  It's consistent with any particular destination, if it
> > doesn't work first time then it's never going to work.
> >
> > We're with Plexatalk whose 'support' (it's a one man band I think) has
> > disappeared for the moment.
> >
> > Is there an 'obvious' fix for this? Is it something awry at Plaxatalk?
> > Is it worth trying another VOIP provider (I'm tempted, given the lack
> > of response at Plexatalk)?
> 
> I had a similar problem and I fixed it by switching on SIP ALG, which is
> frowned upon. But it could be the same underlying problem of packets not
> being routed back to the right address, because there is no stun server
> perhaps.

It's enabled, maybe I should disable it as recommended by most. It was
enabled by default, I didn't do it.

-- 
Chris Green
·

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Thread

About 5% of outgoing calls fail with one-way sound only - fix? Chris Green <cl@isbd.net> - 2026-01-23 15:35 +0000
  Re: About 5% of outgoing calls fail with one-way sound only - fix? Richmond <dnomhcir@gmx.com> - 2026-01-23 15:51 +0000
    Re: About 5% of outgoing calls fail with one-way sound only - fix? Chris Green <cl@isbd.net> - 2026-01-23 17:51 +0000
      Re: About 5% of outgoing calls fail with one-way sound only - fix? Richmond <dnomhcir@gmx.com> - 2026-01-23 22:44 +0000
        Re: About 5% of outgoing calls fail with one-way sound only - fix? Chris Green <cl@isbd.net> - 2026-01-24 09:35 +0000
          Re: About 5% of outgoing calls fail with one-way sound only - fix? Richmond <dnomhcir@gmx.com> - 2026-01-24 10:44 +0000
            Re: About 5% of outgoing calls fail with one-way sound only - fix? David Higton <dave@davehigton.me.uk> - 2026-01-24 17:27 +0000
              Re: About 5% of outgoing calls fail with one-way sound only - fix? Richmond <dnomhcir@gmx.com> - 2026-01-24 17:31 +0000
            Re: About 5% of outgoing calls fail with one-way sound only - fix? David Woolley <david@ex.djwhome.demon.invalid> - 2026-01-25 12:58 +0000
          Re: About 5% of outgoing calls fail with one-way sound only - fix? Richmond <dnomhcir@gmx.com> - 2026-01-24 15:47 +0000
        Re: About 5% of outgoing calls fail with one-way sound only - fix? David Higton <dave@davehigton.me.uk> - 2026-01-24 17:23 +0000
          Re: About 5% of outgoing calls fail with one-way sound only - fix? Richmond <dnomhcir@gmx.com> - 2026-01-24 17:32 +0000
            Re: About 5% of outgoing calls fail with one-way sound only - fix? David Woolley <david@ex.djwhome.demon.invalid> - 2026-01-25 12:43 +0000
  Re: About 5% of outgoing calls fail with one-way sound only - fix? Andy Burns <usenet@andyburns.uk> - 2026-01-23 16:16 +0000
    Re: About 5% of outgoing calls fail with one-way sound only - fix? Chris Green <cl@isbd.net> - 2026-01-23 17:53 +0000
      Re: About 5% of outgoing calls fail with one-way sound only - fix? David Higton <dave@davehigton.me.uk> - 2026-01-23 22:31 +0000
        Re: About 5% of outgoing calls fail with one-way sound only - fix? Chris Green <cl@isbd.net> - 2026-01-24 09:39 +0000
          Re: About 5% of outgoing calls fail with one-way sound only - fix? David Higton <dave@davehigton.me.uk> - 2026-01-24 17:18 +0000
  Re: About 5% of outgoing calls fail with one-way sound only - fix? "J. P. Gilliver" <G6JPG@255soft.uk> - 2026-01-23 17:02 +0000

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