[Asterisk-Users] Can one send CLID NAME over PRI?

[Ejay Hire]

Hi all.

We've been working on this with PRI's from USLEC connecting
to a Cisco AS5300 as the gateway.  We are sending the CNAM
information, but they can't read it dynamically.  We are
stuck (for now) with manually sending in database update
requests.

Having said all that, we're looking at pulling in some SS7
trunks, and that changes the game.

-ejay 

> -----Original Message-----
> From: asterisk-users-admin at lists.digium.com 
> [mailto:asterisk-users-admin at lists.digium.com] On Behalf
Of 
> Alfred R. Nurnberger
> Sent: Monday, June 28, 2004 3:47 PM
> To: asterisk-users at lists.digium.com
> Subject: RE: [Asterisk-Users] Can one send CLID NAME over
PRI?
> 
> I ran a PRI DEBUG SPAN 1 on our office system.
> I could not see any FACILITIES messages on outgoing calls 
> over the PRI.
> So I suppose * does not send the CNAME messages at all on 
> outgoing calls.
> 
> CLID NAME is just a subset of the generic user to user 
> messaging on ISDN
> networks.
> 
> It should be possible to send characterset IE5  u2u
messages 
> and have them
> show up on other ISDN compatible phones. btw. The GSM
standard for
> cellphones is based on ISDN.
> 
> Any comments on that ?
> 
> - Alfred
> 
> -----Original Message-----
> From: asterisk-users-admin at lists.digium.com
> [mailto:asterisk-users-admin at lists.digium.com]On Behalf Of
John Todd
> Sent: Sunday, June 27, 2004 8:05 PM
> To: asterisk-users at lists.digium.com
> Cc: gavron at aces.com
> Subject: Re: [Asterisk-Users] Can one send CLID NAME over
PRI?
> 
> 
> At 2:17 PM -0700 on 6/25/04, Ehud Gavron wrote:
> >Is it possible to send CLID NAME on a PRI?
> >
> >The numbers we send out are being received by telco and
propagated,
> >but the names we send out are not showing up.
> >Is this a feature in PRI?  Do we need to set PRI_NET
instead 
> of PRI_CPE?
> >Is this just not possible?  Is this a telco config issue?
> >
> >Thanks for your help... I've read voip-info, and various 
> other sources, and
> >search engines, and google... with no success.
> >
> >Ehud
> >[snip]
> 
> No, CNAM (Caller NAMe) data is looked up via caller ID
digit
> information by the far end (or somewhere in the middle.)
This is a
> vestige of telephone companies wanting to control the
entire process
> from the center, versus the "next-generation" systems like
VoIP
> wanting to control it from the edges.  Welcome to the
first ring of
> hell; it gets warmer the closer you get to SS7.
> 
> You cannot (yet) transmit this information to any
providers in North
> America, so far as I am aware.  You would have to pay your
upstream
> PSTN (SS7) carrier to insert these records in some central
database,
> probably Verisign or the ILEC from which the number is
purchased.  If
> you don't "own" the numbers that you're transiting, then
you're out
> of luck.
> 
> An interesting trick between Asterisk servers might be to
use the UUI
> (User-to-User Information) data that is part of the PRI
q.931
> specifications.  It is unknown at this time how many
carriers
> actually pass UUI data from end-to-end, and there
currently exist
> only a few sparse patches for Asterisk that deal it.
> 
> For some additional discussion, use Google or start here:
> 
>
http://lists.digium.com/pipermail/asterisk-dev/2003-Septembe
r/
> 001748.html
> 
> 
> JT
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