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Home > Archive > Voice over IP Cisco > October 2007 > H.323 ISDN question..
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H.323 ISDN question..
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| Tim Reimers 2007-10-29, 1:11 pm |
|
Here's a possibly OT question, but perhaps not OT.
We run CCM 4.01 and have a 2651 terminating two ISDN PRIs in H.323 mode
(not MGCP)
The 2651 runs c2600-ipvoice-mz.123-8.T3
Here's the question-
We have some Sony PCS-11 and a Tandberg video conferencing unit.
We normally use video conferencing sites that support IP connectivity,
but I'm now hearing of sites that staff want to conference with which
are ISDN only.
Is it possible to somehow register the Sony/Tandberg units as H.323
clients on the phone system and have them use the ISDN PRI channels for
making video-calls ??
It would seem like perhaps with the CCM and the ISDN we already own that
we possibly already have a lot of the pieces necessary to allow our
video conferencing units to use ISDN when needed, via some sort of
connectivity through the CCM/2651 H.323 gateway??
Or can I/should I think in terms of them using the 2651 as an MCU
directly and not involve the CCM at all??
Or am I talking about two completely different usages of the ISDN PRI
and I can't use the PRI for both CCM voice calls AND for video
conferencing?
Not being familiar with how videoconferencing over ISDN works for sure,
I'm not certain if ISDN is ISDN, or whether there's some different setup
going on for VOIP versus video calls..
| |
| Kelemen Zoltan 2007-10-29, 1:11 pm |
| I'm not quite sure about Tandberg, but I know that Sony units can call =
either point-to-point H.323, or they need a Gatekeeper.
With a GK, on the other hand, you might be able to integrate the whole =
thing into the exisitng phone network, especially, if you use your =
gateways with H.323 as well.
The details, however, are unfortunately beyond my knowledge 
regards,
Zoltan
Tim Reimers wrote:
>
> Here=92s a possibly OT question, but perhaps not OT.
>
> We run CCM 4.01 and have a 2651 terminating two ISDN PRIs in H.323 =
> mode (not MGCP)
>
> The 2651 runs c2600-ipvoice-mz.123-8.T3
>
> Here=92s the question-
>
> We have some Sony PCS-11 and a Tandberg video conferencing unit.
>
> We normally use video conferencing sites that support IP connectivity, =
> but I=92m now hearing of sites that staff want to conference with which =
> are ISDN only.
>
> Is it possible to somehow register the Sony/Tandberg units as H.323 =
> clients on the phone system and have them use the ISDN PRI channels =
> for making video-calls ??
>
> It would seem like perhaps with the CCM and the ISDN we already own =
> that we possibly already have a lot of the pieces necessary to allow =
> our video conferencing units to use ISDN when needed, via some sort of =
> connectivity through the CCM/2651 H.323 gateway??
>
> Or can I/should I think in terms of them using the 2651 as an MCU =
> directly and not involve the CCM at all??
>
> Or am I talking about two completely different usages of the ISDN PRI =
> and I can=92t use the PRI for both CCM voice calls AND for video =
> conferencing?
>
> Not being familiar with how videoconferencing over ISDN works for =
> sure, I=92m not certain if ISDN is ISDN, or whether there=92s some =
> different setup going on for VOIP versus video calls..
>
> ------------------------------------------------------------------------
>
> ________________________________________
_______
> cisco-voip mailing list
> cisco-voip@puck.nether.net
> https://puck.nether.net/mailman/listinfo/cisco-voip
| |
| Andrius Kislas 2007-10-29, 1:11 pm |
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| |
| Tim Reimers 2007-10-29, 1:11 pm |
| That's kinda my thought--- that perhaps all I need to do is configure
the 2651 to be a gatekeeper as well as perhaps be able to act as a
gateway.
I have extra DIDs I could assign to the videoconference units.
What would be _really_ cool would be to have them have VOIP extensions
and be able to use Softphone/Ekiga clients with them, etc...
-----Original Message-----
From: Kelemen Zoltan [mailto:keli@carocomp.ro]
Sent: Monday, October 29, 2007 10:42 AM
To: Tim Reimers
Cc: cisco Voip Mailing list
Subject: Re: [cisco-voip] H.323 ISDN question..
I'm not quite sure about Tandberg, but I know that Sony units can call
either point-to-point H.323, or they need a Gatekeeper.
With a GK, on the other hand, you might be able to integrate the whole
thing into the exisitng phone network, especially, if you use your
gateways with H.323 as well.
The details, however, are unfortunately beyond my knowledge
regards,
Zoltan
Tim Reimers wrote:
>
> Here's a possibly OT question, but perhaps not OT.
>
> We run CCM 4.01 and have a 2651 terminating two ISDN PRIs in H.323
> mode (not MGCP)
>
> The 2651 runs c2600-ipvoice-mz.123-8.T3
>
> Here's the question-
>
> We have some Sony PCS-11 and a Tandberg video conferencing unit.
>
> We normally use video conferencing sites that support IP connectivity,
> but I'm now hearing of sites that staff want to conference with which
> are ISDN only.
>
> Is it possible to somehow register the Sony/Tandberg units as H.323
> clients on the phone system and have them use the ISDN PRI channels
> for making video-calls ??
>
> It would seem like perhaps with the CCM and the ISDN we already own
> that we possibly already have a lot of the pieces necessary to allow
> our video conferencing units to use ISDN when needed, via some sort of
> connectivity through the CCM/2651 H.323 gateway??
>
> Or can I/should I think in terms of them using the 2651 as an MCU
> directly and not involve the CCM at all??
>
> Or am I talking about two completely different usages of the ISDN PRI
> and I can't use the PRI for both CCM voice calls AND for video
> conferencing?
>
> Not being familiar with how videoconferencing over ISDN works for
> sure, I'm not certain if ISDN is ISDN, or whether there's some
> different setup going on for VOIP versus video calls..
>
>
------------------------------------------------------------------------
>
> ________________________________________
_______
> cisco-voip mailing list
> cisco-voip@puck.nether.net
> https://puck.nether.net/mailman/listinfo/cisco-voip
| |
| Robert Kulagowski 2007-10-29, 1:11 pm |
| Andrius Kislas wrote:
> Correct me if I am wrong, but I think you need dedicated h323-to-h320
> (like 3527 MCU) gateway if you want to connect H323 conferencing devices
> to ISDN conferencing devices (that work using h320).
Here's my findings so far on this:
http://www.gossamer-threads.com/lis...ing=128K;#64916
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