Why would the phone ring busy? Have you artificially lowered the number of
calls per line? Is VM enabled on the line or not?

# of calls per line and whether there is VM will matter.
On Oct 24, 2012 5:11 AM, "Jan Fricke" <[email protected]> wrote:

> Hi,
>
> I’m struggling with a Polycom related problem. This is more Polycom
> related than SipX but I think here are a lot of people that know Polycom
> phones very well.
>
>
>
> In some cases my Polycom does not play the user-busy tone. When calling
> pstn using ISDN it depends on the other side.
>
> The case that works:
>
> -          ISDN Alerting arrives -> 180 Ringing to phone
>
> -          ISDN Disconnect user-busy arrives -> 486 Busy here to phone
>
> The case that does not work:
>
> -          ISDN Disconnect user-busy arrives -> 486 Busy here to phone
>
>
>
> The polycom seems to play the busy-tone only if there was a 180 RINGING
> before the 486 Busy here. Does anybody know if there is an option that I
> can set from SipX to manipulate this behavior?
>
>
>
> Sincerely
>
>
>
> Jan
>
>
>
> _____________________________
> Jan Fricke (B.Sc.)
>
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