DIDs / ELINs for use in CER ?

I am getting a bit confused about something regarding the
use of DIDs in CER.

The documents basically state that you need to get some
DID's from the
service provider for each ERL you plan to define, these
DID's will be
used as ELINs to both identify the location and for the PSAP
to return
the call if need be.

So a 911 call is placed, and once things are setup CER will
basically
do or have CM do a translation of the users extension to one
of these
DIDs you specify so that the service provider  will know
what PSAP
that call needs to get routed to and so the PSAP will have a
number to
call back on and such.

All sounds fine and dandy I guess.

However, my experience (which isn't much) has led me to
think that
usually when dealing with  DID ranges from a service
provider that on
911 calls the service provider does not usually pass the DID
of the
phone to the PSAP but rather the billing number which is
usually the
first number of the range I thought?

This isn't a problem as far as passing the location, but it
would be a
problem for a return call from the PSAP.  CER would be
looking for a
call coming into one number which would be mapped to the
phone which
called 911, however if the billing number was passed to the
PSAP thats
the number that would be called back.

Hopefully I am just blanking on something here and this is
not the case.

Can anyone enlighten me on what I am missing here?  Thanks!
_______________________________________________
cisco-voip mailing list
cisco-voippuck.nether.net
h
ttps://puck.nether.net/mailman/listinfo/cisco-voip

You call the telco and ask them to stop sending the main
billing number
for calls where you provide calling party number.

-----Original Message-----
From: cisco-voip-bouncespuck.nether.net
[mailto:cisco-voip-bouncespuck.nether.net] On Behalf
Of Dark Fiber
Sent: Thursday, August 30, 2007 12:38 PM
To: cisco-voippuck.nether.net
Subject: [cisco-voip] DIDs / ELINs for use in CER ?

I am getting a bit confused about something regarding the
use of DIDs in
CER.

The documents basically state that you need to get some
DID's from the
service provider for each ERL you plan to define, these
DID's will be
used as ELINs to both identify the location and for the PSAP
to return
the call if need be.

So a 911 call is placed, and once things are setup CER will
basically
do or have CM do a translation of the users extension to one
of these
DIDs you specify so that the service provider  will know
what PSAP
that call needs to get routed to and so the PSAP will have a
number to
call back on and such.

All sounds fine and dandy I guess.

However, my experience (which isn't much) has led me to
think that
usually when dealing with  DID ranges from a service
provider that on
911 calls the service provider does not usually pass the DID
of the
phone to the PSAP but rather the billing number which is
usually the
first number of the range I thought?

This isn't a problem as far as passing the location, but it
would be a
problem for a return call from the PSAP.  CER would be
looking for a
call coming into one number which would be mapped to the
phone which
called 911, however if the billing number was passed to the
PSAP thats
the number that would be called back.

Hopefully I am just blanking on something here and this is
not the case.

Can anyone enlighten me on what I am missing here?  Thanks!
_______________________________________________
cisco-voip mailing list
cisco-voippuck.nether.net
h
ttps://puck.nether.net/mailman/listinfo/cisco-voip

-----------------------------------------
Disclaimer:

This e-mail communication and any attachments may contain
confidential and privileged information and is for use by
the
designated addressee(s) named above only.  If you are not
the
intended addressee, you are hereby notified that you have
received
this communication in error and that any use or reproduction
of
this email or its contents is strictly prohibited and may
be
unlawful.  If you have received this communication in error,
please
notify us immediately by replying to this message and
deleting it
from your computer. Thank you.
_______________________________________________
cisco-voip mailing list
cisco-voippuck.nether.net
h
ttps://puck.nether.net/mailman/listinfo/cisco-voip

If the provider is sending the BTN to the PSAP they
need to fix that, that’s NOT how it’s supposed to
work. However you are right 90% of the installs that
I've have done have run into this problem but its
usually resolved with a call to the provider telling
them to honor the calling number sent to them.

And actually it would be a problem with passing
location info especially if you were working in a
multi-building or multisite environment because your
ERLs and ELINS are tied together in the PSAP ALI DB.
If the BTN is being sent as opposed to the actual ELIN
 then emergency personnel would always be sent to the
bill to address even if the ERL is in another building
2 blocks over on the second floor. So you absolutely
need to get that fixed for CER to work correctly.


--- Dark Fiber <d4rkf1bergmail.com> wrote:

> I am getting a bit confused about something
> regarding the use of DIDs in CER.
> 
> The documents basically state that you need to get
> some DID's from the
> service provider for each ERL you plan to define,
> these DID's will be
> used as ELINs to both identify the location and for
> the PSAP to return
> the call if need be.
> 
> So a 911 call is placed, and once things are setup
> CER will basically
> do or have CM do a translation of the users
> extension to one of these
> DIDs you specify so that the service provider  will
> know what PSAP
> that call needs to get routed to and so the PSAP
> will have a number to
> call back on and such.
> 
> All sounds fine and dandy I guess.
> 
> However, my experience (which isn't much) has led me
> to think that
> usually when dealing with  DID ranges from a service
> provider that on
> 911 calls the service provider does not usually pass
> the DID of the
> phone to the PSAP but rather the billing number
> which is usually the
> first number of the range I thought?
> 
> This isn't a problem as far as passing the location,
> but it would be a
> problem for a return call from the PSAP.  CER would
> be looking for a
> call coming into one number which would be mapped to
> the phone which
> called 911, however if the billing number was passed
> to the PSAP thats
> the number that would be called back.
> 
> Hopefully I am just blanking on something here and
> this is not the case.
> 
> Can anyone enlighten me on what I am missing here? 
> Thanks!
> _______________________________________________
> cisco-voip mailing list
> cisco-voippuck.nether.net
> h
ttps://puck.nether.net/mailman/listinfo/cisco-voip
> 



       
____________________________________________________________
________________________
Choose the right car based on your needs.  Check out Yahoo!
Autos new Car Finder tool.
http://autos.yahoo.
com/carfinder/
_______________________________________________
cisco-voip mailing list
cisco-voippuck.nether.net
h
ttps://puck.nether.net/mailman/listinfo/cisco-voip

Is it common practice for telco service providers to offer
more
detailed location information then just the address if you
request it?

I am running into a bunch of walls in getting this
requested.

For instance, if I identify I have 10 locations I want to
specify and
I want two DID's for each location then I would ask for 20
DID's, but
they just want to associated these 20 DID's to one location,
and one
BTN and say they have no way to provide more detailed info
for the
location so say like Floor 1 or Floor 2.

Not to mention the fact that some of these DID's are suppose
to be for
different physical locations all together.  And then on top
of that is
the issue I mentioned earlier where they only send the BTN
and don't
honor our calling info.

Is there something specific you have to ask for?  Maybe its
a
different service that I have to ask for then just asking
for new
DID's on a PRI?

Anyway, some of you would mind sharing some info with me
such as what
did you have to ask for, maybe the telco or service
providers name and
what the service is called if it has a specific name, I
would greatly
appreciate the info.

I didn't think this was going to be the hardest part of
setting all
this up to be honest.



On 8/30/07, Scott Voll <svoll.voipgmail.com> wrote:
> Good to know because I've dealt with the same issues.
>
> I just thought I had to add the PS-ALI / PSAP contract
to get it fixed.
> Guess I'll work on that.
>
> Thanks
>
> Scott
>
>
> On 8/30/07, Ted Nugent <tednugent69yahoo.com> wrote:
> >
> > If the provider is sending the BTN to the PSAP
they
> > need to fix that, that's NOT how it's supposed to
> > work. However you are right 90% of the installs
that
> > I've have done have run into this problem but its
> > usually resolved with a call to the provider
telling
> > them to honor the calling number sent to them.
> >
> > And actually it would be a problem with passing
> > location info especially if you were working in a
> > multi-building or multisite environment because
your
> > ERLs and ELINS are tied together in the PSAP ALI
DB.
> > If the BTN is being sent as opposed to the actual
ELIN
> > then emergency personnel would always be sent to
the
> > bill to address even if the ERL is in another
building
> > 2 blocks over on the second floor. So you
absolutely
> > need to get that fixed for CER to work correctly.
> >
> >
> > --- Dark Fiber <d4rkf1bergmail.com> wrote:
> >
> > > I am getting a bit confused about something
> > > regarding the use of DIDs in CER.
> > >
> > > The documents basically state that you need
to get
> > > some DID's from the
> > > service provider for each ERL you plan to
define,
> > > these DID's will be
> > > used as ELINs to both identify the location
and for
> > > the PSAP to return
> > > the call if need be.
> > >
> > > So a 911 call is placed, and once things are
setup
> > > CER will basically
> > > do or have CM do a translation of the users
> > > extension to one of these
> > > DIDs you specify so that the service provider
 will
> > > know what PSAP
> > > that call needs to get routed to and so the
PSAP
> > > will have a number to
> > > call back on and such.
> > >
> > > All sounds fine and dandy I guess.
> > >
> > > However, my experience (which isn't much) has
led me
> > > to think that
> > > usually when dealing with  DID ranges from a
service
> > > provider that on
> > > 911 calls the service provider does not
usually pass
> > > the DID of the
> > > phone to the PSAP but rather the billing
number
> > > which is usually the
> > > first number of the range I thought?
> > >
> > > This isn't a problem as far as passing the
location,
> > > but it would be a
> > > problem for a return call from the PSAP.  CER
would
> > > be looking for a
> > > call coming into one number which would be
mapped to
> > > the phone which
> > > called 911, however if the billing number was
passed
> > > to the PSAP thats
> > > the number that would be called back.
> > >
> > > Hopefully I am just blanking on something
here and
> > > this is not the case.
> > >
> > > Can anyone enlighten me on what I am missing
here?
> > > Thanks!
> > >
_______________________________________________
> > > cisco-voip mailing list
> > > cisco-voippuck.nether.net
> > > h
ttps://puck.nether.net/mailman/listinfo/cisco-voip
> > >
> >
> >
> >
> >
> >
>
____________________________________________________________
________________________
> > Choose the right car based on your needs.  Check
out Yahoo! Autos new Car
> Finder tool.
> > http://autos.yahoo.
com/carfinder/
> > _______________________________________________
> > cisco-voip mailing list
> > cisco-voippuck.nether.net
> > h
ttps://puck.nether.net/mailman/listinfo/cisco-voip
> >
>
>
_______________________________________________
cisco-voip mailing list
cisco-voippuck.nether.net
h
ttps://puck.nether.net/mailman/listinfo/cisco-voip