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

[Ted Nugent]

Is the vg224 grounded?



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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