[cisco-voip] ISDN data calls over H.323?

[Vincent De Keyzer]

Well, I agree that data over ISDN over IP is not exactly the thing I always
wanted to do in my life, but here is the reason.

We are offering a business telephony service, in which we have shared PRI
Cisco gateways, and each customer PBX has a (non-Cisco) H.323 gateway
connected to it (with one or more BRIs ports).

The need for data calls arises from the people doing remote maintenance on
the PBX: they usually use an E.164 number from the customer range to dial in
into the PBX.

So this is why I need to have voice as well as data calls within the same
dial-peer.

The CPE gateways (non-Cisco), support that (without too many bugs).

I am surprised that Cisco does not?...

Vincent


> -----Original Message-----
> From: Walenta, Phil [mailto:philip.walenta at berbee.com]
> Sent: mardi 31 mai 2005 1:37
> To: Vincent De Keyzer; Eric Knudson
> Cc: cisco-voip at puck.nether.net
> Subject: RE: [cisco-voip] ISDN data calls over H.323?
> 
> H.323 based on my experience won't support what you are trying to do.
> H.323 was designed for voice/video, and not really data connections.
> 
> Is there a reason you're trying to pull ISDN directly somewhere over the
> data network?
> 
> Only way I could see doing this is to pull in the ISDN connection, Drop
> and insert it onto another T1, where you could CES it to another
> location via IP.
> 
> 
> -----Original Message-----
> From: cisco-voip-bounces at puck.nether.net
> [mailto:cisco-voip-bounces at puck.nether.net] On Behalf Of Vincent De
> Keyzer
> Sent: Monday, May 30, 2005 11:18 AM
> To: 'Eric Knudson'
> Cc: cisco-voip at puck.nether.net
> Subject: RE: [cisco-voip] ISDN data calls over H.323?
> 
> Interesting, thanks.
> 
> The drawback of this system is, however, that you need to have a special
> dial-peer with codec "clear-channel". What I would like is a single
> dial-peer where the codec selection is based on the bearer-cap of the
> ISDN
> call: if bearer-cap is unrestricted, use "clear-channel" codec; if
> bearer-cap is speech or audio, use G.711.
> 
> Is that possible?
> 
> Vincent
> 
> 
> > -----Original Message-----
> > From: Eric Knudson [mailto:ericknudson at gmail.com]
> > Sent: lundi 30 mai 2005 18:01
> > To: Vincent De Keyzer
> > Cc: cisco-voip at puck.nether.net
> > Subject: Re: [cisco-voip] ISDN data calls over H.323?
> >
> > something like this?
> > http://cisco.com/en/US/products/sw/iosswrel/ps1834/products_feature_gu
> > ide0
> > 9186a00800e9761.html
> >
> >
> >
> > On 5/30/05, Vincent De Keyzer <vincent at dekeyzer.net> wrote:
> > >
> > >
> > >
> > > Hello,
> > >
> > >
> > >
> > > is it possible to make ISDN data calls (no modem calls over ISDN,
> > > but
> > true
> > > data calls ("Unrestricted" bearer-cap)) over a H.323 dial peer?
> > >
> > >
> > >
> > > I have tried and it does not work (call is connected but fails
> > > during
> > H.245
> > > negotiation).
> > >
> > >
> > >
> > > HW is Cisco 2821, SW is "C2800NM-SPSERVICESK9-M, Version
> 12.3(11)XL1".
> > >
> > >
> > >
> > > Thanks in advance,
> > >
> > >
> > >
> > > Vincent
> > >
> > >
> > > _______________________________________________
> > > cisco-voip mailing list
> > > cisco-voip at puck.nether.net
> > > https://puck.nether.net/mailman/listinfo/cisco-voip
> > >
> > >
> > >
> 
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