asterisk users - May 2016 - Early Media Dialplan Issue

Hello all,

Our company is working with a third party predictive dialer application that
uses Asterisk 10.8.0 as its underlying telephony engine.  For several months, we
have had issues with the execution of the dialplan due to early media packets
being sent from our SIP provider.  My understanding of the problem is that an
early media message arrives and the dial plan begins its execution, AMD hears
silence and passes the connection to an agent.  The agent ends up with either a
constant ringing or a connection without audio.

Despite an active maintenance contract, the dialer company has given up trying
to solve the issue.  Furthermore, they have no immediate plans to upgrade the
underlying version of Asterisk.  I do have root access to the server but would
be hesitant to make changes outside of the Asterisk configuration files.

My question is twofold.  First, is there anything that I could adjust in one of
the Asterisk configuration files that would take care of this problem? 
Alternatively, is there a hardware\software  approach to filtering these
packets?  As a side note, we do have a couple of Adtran 916e routers that could
be used if they would be of any help.



Dan Adkins
IT Manager - TenPoint Complete

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Replace vicidial with a better dialer :)
On May 9, 2016 10:39 AM, "Dan Adkins" <dadkins at
tenpointcomplete.com> wrote:
> Hello all,
>
>
>
> Our company is working with a third party predictive dialer application
> that uses Asterisk 10.8.0 as its underlying telephony engine.  For several
> months, we have had issues with the execution of the dialplan due to early
> media packets being sent from our SIP provider.  My understanding of the
> problem is that an early media message arrives and the dial plan begins its
> execution, AMD hears silence and passes the connection to an agent.  The
> agent ends up with either a constant ringing or a connection without audio.
>
>
>
> Despite an active maintenance contract, the dialer company has given up
> trying to solve the issue.  Furthermore, they have no immediate plans to
> upgrade the underlying version of Asterisk.  I do have root access to the
> server but would be hesitant to make changes outside of the Asterisk
> configuration files.
>
>
>
> My question is twofold.  First, is there anything that I could adjust in
> one of the Asterisk configuration files that would take care of this
> problem?  Alternatively, is there a hardware\software  approach to
> filtering these packets?  As a side note, we do have a couple of Adtran
> 916e routers that could be used if they would be of any help.
>
>
>
>
>
>
>
> *Dan Adkins*
>
> IT Manager - TenPoint Complete
>
>
>
> --
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