[cisco-voip] VG224 buzzing/humming on incoming calls only

[Paul Choi]

Are tip and ring reversed?

Paul

--- Kevin Dunn <cheesevoice at gmail.com> wrote:

> I just had this happen with a VG248.  Same exact
> issue, turned out the
> analog lines had been victims of some lightning, the
> Telco replaced teh
> facilities for the analog lines and the crackling
> went away... Hope that
> helps.
> 
> On 10/11/07, MILLS, Mark <mark.mills at baesystems.com>
> wrote:
> >
> >  Hi All,
> >
> > I was hoping I might be able to get some help with
> the setup of a VG224
> > that I am doing.  It is connected to CCM6 cluster.
>  I can place calls FROM
> > the analog phones connected to the ports, and it
> all works properly with two
> > way audio.
> >
> > When making calls TO the analog lines on the
> VG224, the calling party
> > simply hears a loud buzzing/humming noise and
> nothing else.  The analog user
> > can hear nothing.
> >
> > This happens for incoming PSTN calls and calls to
> other extensions to the
> > VG224 connected devices.
> >
> > I have not setup a VG224 for incoming calls
> before, so there is obviously
> > something I have missed.  Below is the relevant
> config parts on the device.
> > Any help is appreciated!
> >
> >
> >
> > stcapp ccm-group 1
> > stcapp
> > !
> > voice-port 2/0
> >  ren 3
> >  idle-voltage low
> >  disc_pi_off
> >  input gain 10
> >  output attenuation 10
> >  playout-delay minimum low
> >  cptone AU
> >  timing digit 53
> >  bearer-cap Speech
> >  station-id number XXXXXXXXXX
> >  caller-id enable
> > !
> > sccp local FastEthernet0/0
> > sccp ccm 10.194.3.10 identifier 20 version 4.1
> > sccp ccm 10.194.4.10 identifier 10 version 4.1
> > sccp
> > !
> > sccp ccm group 1
> >  associate ccm 10 priority 1
> >  associate ccm 20 priority 2
> >  switchback method graceful
> > !
> > dial-peer voice XXXXXXXXXX pots
> >  service stcapp
> >  port 2/23
> > !
> >
> > Cheers,
> >    Mark
> >
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> >
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