[Freeswitch-dev] H323 and Freeswitch
Vlasis Hatzistavrou (KTI)
vhatz at kinetix.gr
Tue May 13 07:26:02 EDT 2008
Tuyan Özipek wrote:
> Actually , it used to work as Anthony wanted it to work. Rtp being
> handled totally by freeswitch, while the h323
> signalling uses opal.
So what is the problem then? Why is the additional layer of C code that
Anthony described needed?
Best regards,
Vlasis.
> When you have a look at Yate or asterisk h323
> channel that uses h323plus, you will see that
> its the same h323external_rtp_channel that i used in the "proof of
> concept" h323 driver.
> (Also , please note that main design is from Lukasz Zwierko.)
>
> As i remember, h323 driver, should set the codec of the channel to
> what it receives from h323 side of the call.
> (yes, there was no codec negotiation at the time, but i was able to
> route calls with gsm from mod_opal to mod_sofia and to FS conference.
> with or without being on the media path. ) with some basic profile
> support and etc.
>
> With the newest changes on the opal code, it may be possible to use (i
> am not sure though) external rtp channel for sip also. Which means
> opal can do sip for freeswitch as well.
>
> I believe that both Opal and freeswitch are really nice projects that
> can benefit from each other.
>
>
> Please keep up the nice work.
>
> Tuyan Ozipek
>
>
>
> On Mon, May 12, 2008 at 1:21 PM, Anthony Minessale
> <anthony.minessale at gmail.com> wrote:
>> The problem is we need lower level access to the OPAL than that effort
>> provided. It uses OPAL as the media engine and even if it's completed, the
>> way it's designed all calls will appear as decoded signed linear audio and
>> there will be no way to do signal bridging with point to point rtp and use
>> FS codecs etc.
>>
>> The new module will use a C front end to OPAL developed by the author just
>> for the way we need to use it. So unless you can achieve what I am
>> describing from the existing mod_opal the route i described is the way to
>> go.
>>
>>
>>
>>
>> On Mon, May 12, 2008 at 12:05 PM, Vlasis Hatzistavrou (KTI)
>> <vhatz at kinetix.gr> wrote:
>>> So, in other words there is no use for us to try and build on the
>>> current mod_opal from Tuyan?
>>>
>>> We just thought that since a good part of the work is already done in
>>> Tuyan's mod_opal, H323 support would be available sooner than building
>>> it from scratch, right?
>>>
>>>
>>> Anthony Minessale wrote:
>>>> It's a new module we are going to create with the help of the actual
>>>> OPAL developer.
>>>> We are looking for about 10k to keep it in focus long enough to get it
>>>> completed.
>>>>
>>>>
>>>> On Mon, May 12, 2008 at 11:42 AM, Vlasis Hatzistavrou (KTI)
>>>> <vhatz at kinetix.gr <mailto:vhatz at kinetix.gr>> wrote:
>>>>
>>>> Hello,
>>>>
>>>> Is this OPAL based module based on mod_opal that Tuyan Ozipek has
>> been
>>>> developing or is this something completely new?
>>>>
>>>> We were actually planning on assisting with testing & developing
>> H323
>>>> support for a carrier environment. However, since a funding option
>> is
>>>> available, what is the sum that is needed for developing an H323
>> module
>>>> for Freeswitch?
>>>>
>>>> Best regards,
>>>> Vlasis Hatzistavrou
>>>> Kinetix Tele.com International Inc.
>>>>
>>>> Anthony Minessale wrote:
>>>> > We are planning to make an OPAL based module in the near future
>>>> but it's
>>>> > moving slow because none of the interested parties want to fund
>> the
>>>> > development.
>>>> >
>>>> >
>>>> > On Mon, May 12, 2008 at 10:56 AM, Kinetix Tele.com Mailing Lists
>>>> > <regs at kinetix.gr <mailto:regs at kinetix.gr> <mailto:regs at kinetix.gr
>>>
>>>
>>>> <mailto:regs at kinetix.gr>>> wrote:
>>>> >
>>>> > Hi,
>>>> >
>>>> > I am interested in the topic of Freewitch supporting the
>> h323
>>>> > protocol.
>>>> > I have seen various attempts to achieve that since the
>>>> beginning of the
>>>> > whole
>>>> > project. The Woomera approach is in suspended mode as I saw
>>>> in the wiki.
>>>> > I am also aware of a separate Opal approach from Tuyan
>> Ozipek. My
>>>> > technical
>>>> > director (Hatzistavrou Vlasis) exchanged some emails with
>>>> Tuyan some
>>>> > time ago, but
>>>> > I don't know if the effort is still active.
>>>> >
>>>> > Could someone please inform me if there is an "official"
>> (or
>>>> > something close to that)
>>>> > effort of enabling H323 support for Freeswitch, because we
>> (as a
>>>> > company) are willing
>>>> > to participate and contribute (to the extend that we can) to
>>>> such an
>>>> > effort.
>>>> >
>>>> > If someone has any information on the subject please
>>>> respond to the
>>>> > mailing list.
>>>> >
>>>> > Kind Regards,
>>>> >
>>>> > Apostolos Pantsiopoulos,
>>>> > Kinetix Tele.com Int. R&D
>>>> >
>>>> >
>>>> >
>>>> > _______________________________________________
>>>> > Freeswitch-dev mailing list
>>>> > Freeswitch-dev at lists.freeswitch.org
>>>> <mailto:Freeswitch-dev at lists.freeswitch.org>
>>>> > <mailto:Freeswitch-dev at lists.freeswitch.org
>>>> <mailto:Freeswitch-dev at lists.freeswitch.org>>
>>>> > http://lists.freeswitch.org/mailman/listinfo/freeswitch-dev
>>>> >
>>>>
>> UNSUBSCRIBE:http://lists.freeswitch.org/mailman/options/freeswitch-dev
>>>> > http://www.freeswitch.org
>>>> >
>>>> >
>>>> >
>>>> >
>>>> > --
>>>> > Anthony Minessale II
>>>> >
>>>> > FreeSWITCH http://www.freeswitch.org/
>>>> > ClueCon http://www.cluecon.com/
>>>> >
>>>> > AIM: anthm
>>>> > MSN:anthony_minessale at hotmail.com
>>>> <mailto:MSN%3Aanthony_minessale at hotmail.com>
>>>> > <mailto:MSN%3Aanthony_minessale at hotmail.com
>>>> <mailto:MSN%253Aanthony_minessale at hotmail.com>>
>>>> > GTALK/JABBER/PAYPAL:anthony.minessale at gmail.com
>>>> <mailto:PAYPAL%3Aanthony.minessale at gmail.com>
>>>> > <mailto:PAYPAL%3Aanthony.minessale at gmail.com
>>>> <mailto:PAYPAL%253Aanthony.minessale at gmail.com>>
>>>> > IRC: irc.freenode.net <http://irc.freenode.net>
>>>> <http://irc.freenode.net> #freeswitch
>>>> >
>>>> > FreeSWITCH Developer Conference
>>>> > sip:888 at conference.freeswitch.org
>>>> <mailto:sip%3A888 at conference.freeswitch.org>
>>>> > <mailto:sip%3A888 at conference.freeswitch.org
>>>> <mailto:sip%253A888 at conference.freeswitch.org>>
>>>> > iax:guest at conference.freeswitch.org/888
>>>> <http://iax:guest@conference.freeswitch.org/888>
>>>> > <http://iax:guest@conference.freeswitch.org/888>
>>>> > googletalk:conf+888 at conference.freeswitch.org
>>>> <mailto:googletalk%3Aconf%2B888 at conference.freeswitch.org>
>>>> > <mailto:googletalk%3Aconf%2B888 at conference.freeswitch.org
>>>> <mailto:googletalk%253Aconf%252B888 at conference.freeswitch.org>>
>>>> > pstn:213-799-1400
>>>> >
>>>> >
>>>> >
>>>>
>> ------------------------------------------------------------------------
>>>> >
>>>> > _______________________________________________
>>>> > Freeswitch-dev mailing list
>>>> > Freeswitch-dev at lists.freeswitch.org
>>>
>>>
>>>> <mailto:Freeswitch-dev at lists.freeswitch.org>
>>>> > http://lists.freeswitch.org/mailman/listinfo/freeswitch-dev
>>>> >
>>>>
>> UNSUBSCRIBE:http://lists.freeswitch.org/mailman/options/freeswitch-dev
>>>> > http://www.freeswitch.org
>>>>
>>>> _______________________________________________
>>>> Freeswitch-dev mailing list
>>>> Freeswitch-dev at lists.freeswitch.org
>>>> <mailto:Freeswitch-dev at lists.freeswitch.org>
>>>> http://lists.freeswitch.org/mailman/listinfo/freeswitch-dev
>>>>
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>>>> http://www.freeswitch.org
>>>>
>>>>
>>>>
>>>>
>>>> --
>>>> Anthony Minessale II
>>>>
>>>> FreeSWITCH http://www.freeswitch.org/
>>>> ClueCon http://www.cluecon.com/
>>>>
>>>> AIM: anthm
>>>> MSN:anthony_minessale at hotmail.com
>>>> <mailto:MSN%3Aanthony_minessale at hotmail.com>
>>>> GTALK/JABBER/PAYPAL:anthony.minessale at gmail.com
>>>> <mailto:PAYPAL%3Aanthony.minessale at gmail.com>
>>>> IRC: irc.freenode.net <http://irc.freenode.net> #freeswitch
>>>>
>>>> FreeSWITCH Developer Conference
>>>> sip:888 at conference.freeswitch.org
>>>> <mailto:sip%3A888 at conference.freeswitch.org>
>>>> iax:guest at conference.freeswitch.org/888
>>>> <http://iax:guest@conference.freeswitch.org/888>
>>>> googletalk:conf+888 at conference.freeswitch.org
>>>> <mailto:googletalk%3Aconf%2B888 at conference.freeswitch.org>
>>>> pstn:213-799-1400
>>>>
>>>>
>>>> ------------------------------------------------------------------------
>>>>
>>>> _______________________________________________
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>>>> http://lists.freeswitch.org/mailman/listinfo/freeswitch-dev
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>>>> http://www.freeswitch.org
>>> _______________________________________________
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>>> http://www.freeswitch.org
>>>
>>
>>
>> --
>> Anthony Minessale II
>>
>> FreeSWITCH http://www.freeswitch.org/
>> ClueCon http://www.cluecon.com/
>>
>> AIM: anthm
>> MSN:anthony_minessale at hotmail.com
>> GTALK/JABBER/PAYPAL:anthony.minessale at gmail.com
>> IRC: irc.freenode.net #freeswitch
>>
>>
>> FreeSWITCH Developer Conference
>> sip:888 at conference.freeswitch.org
>> iax:guest at conference.freeswitch.org/888
>> googletalk:conf+888 at conference.freeswitch.org
>> pstn:213-799-1400
>> _______________________________________________
>> Freeswitch-dev mailing list
>> Freeswitch-dev at lists.freeswitch.org
>> http://lists.freeswitch.org/mailman/listinfo/freeswitch-dev
>> UNSUBSCRIBE:http://lists.freeswitch.org/mailman/options/freeswitch-dev
>> http://www.freeswitch.org
>>
>>
>
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