[arm-allstar] Sound devices supported by V 1.5

[David McGough]

Hi Michael,

Ah, now I understand what you're wanting to do. Yes, there are many 
commercial RoIP/VoIP devices out there, like the Telex controller.

Since this type of hardware is well beyond what most hams have (or can
afford?), I suspect progress will be slow, if possible at all, due to 
patents, licensing and likely encryption of UDP data packets.

Do you know of any documentation for the UDP protocol used with the IP-223
(or IP-224), etc.?

73, David KB4FXC


On Thu, 22 Dec 2016, Michael Hebert wrote:

> David,
> 
> Thanks for the info. I have several devices that use multicast to tx/rx
> audio across networks. Two examples are the Telex IP-223 and Cisco 2610xm
> router with E/M cards. It is just something I have thought would be useful.
> If the audio is already there in the multicast stream, it would be nice to
> bring it directly into the channel driver thru rpt.conf.
> 
> Michael KD5DFB
> 
> On Thu, Dec 22, 2016 at 2:53 PM, David McGough <kb4fxc at inttek.net> wrote:
> 
> >
> > Hi Michael,
> >
> > The SIP protocol supports RTP (Realtime Transport Protocol) multicast for
> > some applications where you have a large number of SIP phones on a
> > -single- LAN. An example where this is useful is a scenario where you need
> > to perform a one-to-many paging operation---e.g.: One SIP user sends a
> > general announcement which goes to all the speakerphone speakers on all
> > other extensions. Another possible application might be where numerous
> > local (on the same local LAN segment) SIP users wish to participate in a
> > conference call.
> >
> > Again, all the above comments are in regard to the SIP protocol. AllStar
> > uses the IAX2 protocol for data transfer between nodes and IAX2 doesn't
> > support multicast packets methods (as far as I know??).
> >
> > How are you thinking multicast would be a useful addition?
> >
> >
> > 73, David KB4FXC
> >
> >
> > On Thu, 22 Dec 2016, Michael Hebert wrote:
> >
> > > David,
> > >
> > > I thought I have seen a rpt.conf that could use multicast udp packets for
> > > the channel driver. I should have bookmarked the page.
> > >
> > > It think it would be similar to the USRP channel driver, where you would
> > > define the multicast ip and port
> > >
> > > rxchannel = USRP/127.0.0.1:34001:32001
> > >
> > > Also, found this.
> > >
> > > http://www.voip-info.org/wiki/view/Asterisk+MulticastRTP+channels
> > >
> > >
> > > Michael KD5DFB
> > >
> > > On Thu, Dec 22, 2016 at 12:02 PM, David McGough <kb4fxc at inttek.net>
> > wrote:
> > >
> > > >
> > > > Hi Micheal,
> > > >
> > > > Multicast? I don't understand what you're asking?
> > > >
> > > >
> > > > 73, David KB4FXC
> > > >
> > > >
> > > > On Thu, 22 Dec 2016, "Michael Hebert via arm-allstar" wrote:
> > > >
> > > > > Doug,
> > > > >
> > > > > Will it the version support mulitcast as a channel driver?
> > > > >
> > > > > Michael KD5DFB
> > > > >
> > > > > On Wed, Dec 21, 2016 at 11:33 PM, "Doug Crompton via arm-allstar" <
> > > > > arm-allstar at hamvoip.org> wrote:
> > > > >
> > > > > > I will just add to what Dave said,
> > > > > >
> > > > > > No new hardware devices are supported in the initial update but as
> > I
> > > > > > pointed out the groundwork will be there in the future to make it
> > much
> > > > > > easier to support additional devices. If they are supported
> > depends on
> > > > a
> > > > > > lot of things. How popular they are, if they meet the guidelines
> > for
> > > > being
> > > > > > interfaced, if someone writes a driver, etc. But it should be
> > easier
> > > > for
> > > > > > someone to do that with an external driver because of the standard
> > > > > > interface that will exist to Allstar.
> > > > > >
> > > > > >
> > > > > >
> > > > > > *73 Doug*
> > > > > >
> > > > > > *WA3DSP*
> > > > > >
> > > > > > *http://www.crompton.com/hamradio <http://www.crompton.com/
> > hamradio>*
> > > > > >
> > > > > > On Wed, Dec 21, 2016 at 7:48 PM, "Peter Dahl via arm-allstar" <
> > > > > > arm-allstar at hamvoip.org> wrote:
> > > > > >
> > > > > > > Doug,
> > > > > > >         Will the Northwest Digital Radio UDRC Pi hat be
> > supported in
> > > > V
> > > > > > 1.5
> > > > > > > as sound card/radio interface device?
> > > > > > >
> > > > > > > Peter Dahl, WA7FUS
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> > > > > > >
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> > > > > > >
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> > > > > >
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> > > > > >
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> > > > > >
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> > > > >
> > > >
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