Re: [Ecrit] Regulatory Requirments for Callback

[Brian Rosen <br at brianrosen.net>]

There is an interesting one in the U.S.

There are services for the deaf and hard of hearing called "Video Relay
Service" and "IP Relay Service".  The former uses videophones to an
interpreter who uses sign language to communicate with the deaf/HoH person
and places (or recieves) voice calls with hearing persons.

IP Relay uses a text device like a laptop or PDA with an IM client, and the
interpreter interprets text to voice.

Both VRS and IP Relay have been upgraded recently to give the deaf/HoH user
a (10 digit, U.S. Number plan) telephone number.  Calls to the number are
answered by an interpreter who has access to a database that maps the TN to
the URI of the video/text device.

These services now have regulatory requirements to support emergency calling
(9-1-1).  One of the requirements is that calls to 9-1-1 get priority on the
interpreter queue. 

The regulator ALSO requires that callbacks get priority.  This is very hard
to do, because it is very hard to identify which calls are callbacks from
the PSAP.  The providers currently use a heuristic that any calls to the
caller who placed an emergency call get priority for some hours after the
emergency call is placed.

Brian


On 10/23/09 10:27 AM, "Hannes Tschofenig" <Hannes.Tschofenig at gmx.net> wrote:

> Hi all, 
> 
> I am looking for some references to regulatory requirements for PSAP
> callbacks. I would like to see what is required from a regulatory point of
> view as input for the PSAP callback document.
> 
> So, if someone has some documents please let me know.
> 
> Ciao
> Hannes
> 
> 
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