I attached the manual and it looks like Benjamin could be right.

Open the PDF and search for Voice activity detection

David

ke6upi

--

Thanks, David

"Laws that forbid the carrying of arms...disarm only those who are neither inclined nor determined to commit crimes. Such laws make things worse for the assaulted and better for the assailants; they serve rather to encourage than prevent homicides, for an unarmed man may be attacked with greater confidence than an armed one."

Thomas Jefferson

On Wed, May 24, 2017 at 1:14 PM, Benjamin Naber <Benjamin@project23d.com> wrote:

Activity disconnect? Maybe the phone has VAD turned on, and if there is
not RX audio traffic, it thinks the line is hung and drops...

Does the Polycom hang up when there is traffic?

just guessing, haha

~Benjamin, KB9LFZ

On Wed, 2017-05-24 at 14:44 -0500, K Yoksh wrote:
> Hi everyone,
>
>
> I'm trying to help a friend troubleshoot an issue with his Polycom IP
> phones.
>
>
> He is trying to use a Polycom VVX500 to monitor his Allstar nodes, but
> the phone hangs itself up after 30 seconds.
>
>
> We've tried all sorts of things to cure the issue. It doesn't occur
> when using Cisco or Aastra phones, or any softphone we've tried. Just
> these Polycoms.
>
>
> Calls from phone to phone don't auto-disconnect either, this only
> happens when the phone is used to call *any* Allstar node.
>
>
> Any suggestions?
>
>
> Thanks. 73
>
>
> Kyle
> K0KN

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