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Home > Archive > Voice over IP Cisco > May 2005 > ISDN data calls over H.323?
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| Author |
ISDN data calls over H.323?
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| Vincent De Keyzer 2005-05-30, 7:45 am |
| 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
| |
| Eric Knudson 2005-05-30, 5:45 pm |
| something like this?
http://cisco.com/en/US/products/sw/...00800e9761.html
On 5/30/05, Vincent De Keyzer <vincent@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@puck.nether.net
> https://puck.nether.net/mailman/listinfo/cisco-voip
>
>
>
| |
| Vincent De Keyzer 2005-05-30, 5:45 pm |
| 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
[vbcol=seagreen]
> -----Original Message-----
> From: Eric Knudson [mailto:ericknudson@gmail.com]
> Sent: lundi 30 mai 2005 18:01
> To: Vincent De Keyzer
> Cc: cisco-voip@puck.nether.net
> Subject: Re: [cisco-voip] ISDN data calls over H.323?
>
> something like this?
> http://cisco.com/en/US/products/sw/..._feature_guide0
> 9186a00800e9761.html
>
>
>
> On 5/30/05, Vincent De Keyzer <vincent@dekeyzer.net> wrote:
> true
> H.245
| |
| Walenta, Phil 2005-05-30, 8:45 pm |
| 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@puck.nether.net
[mailto:cisco-voip-bounces@puck.nether.net] On Behalf Of Vincent De
Keyzer
Sent: Monday, May 30, 2005 11:18 AM
To: 'Eric Knudson'
Cc: cisco-voip@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
[vbcol=seagreen]
> -----Original Message-----
> From: Eric Knudson [mailto:ericknudson@gmail.com]
> Sent: lundi 30 mai 2005 18:01
> To: Vincent De Keyzer
> Cc: cisco-voip@puck.nether.net
> Subject: Re: [cisco-voip] ISDN data calls over H.323?
>
> something like this?
> http://cisco.com/en/US/products/sw/...ucts_feature_gu
> ide0
> 9186a00800e9761.html
>
>
>
> On 5/30/05, Vincent De Keyzer <vincent@dekeyzer.net> wrote:
> true
> H.245
12.3(11)XL1".[vbcol=seagreen]
________________________________________
_______
cisco-voip mailing list
cisco-voip@puck.nether.net
https://puck.nether.net/mailman/listinfo/cisco-voip
| |
| Vincent De Keyzer 2005-05-31, 2:45 am |
| 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@berbee.com]
> Sent: mardi 31 mai 2005 1:37
> To: Vincent De Keyzer; Eric Knudson
> Cc: cisco-voip@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@puck.nether.net
> [mailto:cisco-voip-bounces@puck.nether.net] On Behalf Of Vincent De
> Keyzer
> Sent: Monday, May 30, 2005 11:18 AM
> To: 'Eric Knudson'
> Cc: cisco-voip@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
>
>
> 12.3(11)XL1".
>
> ________________________________________
_______
> cisco-voip mailing list
> cisco-voip@puck.nether.net
> https://puck.nether.net/mailman/listinfo/cisco-voip
| |
| Eric Knudson 2005-05-31, 7:45 am |
| If they use a specific e.164, then you could differentiate based on
dnis(incoming called-number) rather than bearer-cap (though I swear
there was a dial-peer selection method based off of bearer-cap,
couldn't find it yesterday).
On 5/31/05, Vincent De Keyzer <vincent@dekeyzer.net> wrote:
> 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
>
>
>
>
| |
| Vincent De Keyzer 2005-05-31, 7:45 am |
| Yes, that could be a solution, but it means that I have to know it in
advance (and sometimes they just won't tell me - don't ask why).
All I would like the cisco to do is transparently pass on the call to the
CPE: if it's a data call, set up a data call; if it's a speech call, set up
a speech call.
Am I the only one facing this problem?...
Vincent
[vbcol=seagreen]
> -----Original Message-----
> From: Eric Knudson [mailto:ericknudson@gmail.com]
> Sent: mardi 31 mai 2005 14:16
> To: Vincent De Keyzer
> Cc: Walenta, Phil; cisco-voip@puck.nether.net
> Subject: Re: [cisco-voip] ISDN data calls over H.323?
>
> If they use a specific e.164, then you could differentiate based on
> dnis(incoming called-number) rather than bearer-cap (though I swear
> there was a dial-peer selection method based off of bearer-cap,
> couldn't find it yesterday).
>
> On 5/31/05, Vincent De Keyzer <vincent@dekeyzer.net> wrote:
> always
> PRI
> on
> dial in
> same
> the
> Drop
> special
> http://cisco.com/en/US/products/sw/...ucts_feature_gu
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