[cisco-voip] voip and 911

[Justin Steinberg]

If all of your buildings are in a local campus area than they *should* all
be served by the same PSAP.  If this is the case you can send all 911 calls
out your T1 to your central PRI and in the process change the ANI to
a dedicated DID number that is programmed in Intrado PS/ALI with the
location of each of your buildings.

Then program those DIDs so that a receptionist can answer the 911 callback.

If your T1 is down at a remote building and SRST kicks in it can route 911
calls over the local analog line.

As far as 911 not being able to see the location of your analog lines.  You
should take this up with the Telco provider for your analog lines.  It is
their responsibilty to add the number to the 911 database.

Justin


On 5/5/06, Teresa Nelson <tnelson at scld.org> wrote:
>
>  Thanks for your responses to our other voip/analog masking question -
> since we are unable to mask the analog numbers, here is our next hurdle.
>
> Again, we have moved to voip phones on our network.  We have 9 buildings.
> We kept at least one analog line in each building for times when the network
> phones might be down.  The analog line has a fax machine and an analog phone
> on it.  When a 911 call is made from any of the 8 buildings not housing the
> PRI line, the call from any voip phone goes directly out the analog line.
> 911 only sees the fax line as a call back number.  The Intrado's PS/ALI
> database can not be interfaced with the analog numbers, therefore none of
> the DID's location/call back information can be displayed to the 911
> operator.  How have others gotten around this situation.  911 Administrators
> say this is not an ideal.
>
> Intrado suggested we see if the 911 had a local database for cross
> referencing numbers in special situations.  Answer was no.
>
> Thanks for your thoughts, Teresa
>
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