[Asterisk-Users] Re: www.openpbx.org

2005-10-08 Thread Peter Nixon
On Friday 07 October 2005 19:10, Troy Settle wrote:
> Nice smartass remark... of course anyone can register a domain name.
>
> Is forking asterisk legal?  Of course it is!  Asterisk is under the GPL,
> which means that anyone can fork it at any time for any reason.
>
> Look at this in a positive light... many open source projects have
> forked, and the branches almost always end up feeding on one another.

The difference in this case being of course that OpenPBX can happily continue 
to feed on any good developments (code wise) that happens in Asterisk but due 
to Digium's dual license restrictions Asterisk will not be able to feed on 
code that goes into OpenPBX. This means (and this is already the case if you 
look at the source tree) that other issues aside, OpenPBX should progress 
quicker in the long term. (That is if you assume that there is good code in 
Asterisk that the OpenPBX developers wish to use and visa versa)

Cheers
-- 

Peter Nixon
http://www.peternixon.net/
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[Asterisk-Users] Re: OPAL now supports IAX2

2005-08-06 Thread Peter Nixon
On Sunday 07 August 2005 04:05, Brian West wrote:
> > What are the advantages of using woomera IAX2 instead of native IAX2?
>
> Put woomera aside right now, This is something that brings a cross
> platform IAX2 stack that can for example be used in Gnomemeeting or
> anything else that uses OPAL, using a closed and open familiar API.
> This can be used on windows, linux and anything that OPAL and PWLIB
> can be used on without any changes.  Its a step in the right
> direction in my opinion.

To clarify things a little, OPAL is a cross platform (Unix, Linux, Mac and 
Windows) telephony library written in C++ which among other things 
supports H323, SIP and now IAX2 thanks to Derek Smithies. It (and its 
older brother OpenH323) allows you to use a large number of Open Source 
Audio (including wideband) and Video codecs as well as commercial ones 
(like g729) as it is distributed under the MPL license.

The design of the API allows things like codec translation (GSM-g711) 
applications or protocol translation (SIP-H323-IAX2) applications to be 
written in 20-30 lines of code. (Video codec translation is also possible 
of course)

These and many other features can be used from client applications 
(SoftPhones, IP Phones, Gateways) and from servers like Asterisk. Thanks 
to woomera (another app from Craig Southeren) and chan_woomera (an 
Asterisk channel by Anthony Minessale) the VoIP Signalling and Media 
handling (RTP or IAX2) can be offloaded onto OPAL or OpenH323, thus 
bypassing many of the stability issues caused by the  poor locking and 
thread model in Asterisk.

Of cause an added bonus is that you may use commercial/patented/closed 
source VoIP codecs without voilating Asterisk'S GPL license.

A second implementation of the IAX2 protocol also helps with finding bugs 
(and other problems) in the reference implementation in Asterisk.

Although the IAX2 code in OPAL is still very new, the heavily multithread 
object nature of OPAL should allow much higher scalability than the 
existing library allows.

I hope that helps explain some of the possibilities

-- 

Peter Nixon
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[Asterisk-Users] Re: Chan_Woomera beta released at www.pbxfreeware.org

2005-06-23 Thread Peter Nixon
On Thursday 23 June 2005 22:41, Brian West wrote:
> chan_woomera is another alternative h323 implementation.
>
> visit www.pbxfreeware.org for more information.
>
> Thanks,
> Brian
> www.cluecon.com

On behalf of everyone I would like to thank Brian, Anthony and Craig for their 
hard work. We have all been waiting for this...

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[Asterisk-Users] Re: Digium Website Update: Asterisk Business Edition

2005-06-06 Thread Peter Nixon
On Monday 30 May 2005 13:28, Matteo Brancaleoni wrote:
> and , what is more interesting,
> they've omitted any reference to digium resellers
> and specified only distributors :(

Yes. Our reseller info was removed. And some of our customers have been sold 
to directly.. Not a nice way to do business :-(

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[Asterisk-Users] Re: Digium Website Update: Asterisk Business Edition

2005-06-06 Thread Peter Nixon
On Monday 06 June 2005 02:50, Kevin P. Fleming wrote:
--snip--
> > I've just not been impressed with Digium's behaviour lately.  They've
> > gotten quite hostile over Sangoma hardware lately, claiming that Sangoma
> > (by continuing to develop, refine, and expand their hardware lines,
> > which are much older than asterisk, and which asterisk was originally
> > developed on) are just ripping them off.  If anything, Digium is ripping
> > people off with hardware which is inferior (though I've seen claims that
> > they have some good new stuff coming - excellent!).
>
> Exactly where did you hear that Asterisk was "originally developed on
> Sangoma hardware"? Nothing could be farther from the truth; the very
> earliest Asterisk code supported some funky Voice-over-Frame-Relay
> hardware, then it was modified to support the Zapata hardware from the
> Zapata open source hardware group. Digium has never had any drivers for
> Sangoma hardware, and still doesn't. Any Asterisk support for Sangoma
> hardware has been built by Sangoma.
--snip--

"When I wrote Asterisk originally, I used a Sangoma Frame-Relay card to talk 
to an Adtran Atlas, and used the Atlas to drive a channel bank. I got all 
this stuff running but it was a pretty big mess at the time," recalls 
Spencer. "I faced a number of problems in the development of this. One of the 
primary problems was that of finding hardware to connect the PC to the phone 
system. The hardware available was as expensive as a PBX itself. Of course, 
once I got it working, I could add expensive features in software for 
practically no cost -- other than time to write the code -- but the hardware 
issue was definitely a problem."

Source: http://linuxdevices.com/articles/AT8678310302.html

Lets get our facts straight shall we. It appears that the FIRST ever hardware 
suported by Asterisk was Sangoma ;-)

Cheers
-- 

Peter Nixon
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[Asterisk-Users] Re: Strategy for a stable IAXy

2005-02-10 Thread Peter Nixon
On Thursday 10 February 2005 20:35, Colin Anderson wrote:
>  > Why would someone choose these over other boxes, such as the Sipura 2000
>
> and 3000?
>
> Because I want NAT traversal and a low bandwidth codec. That's the whole
> point of IAX2 as opposed to SIP.

There is no low bandwidth codec available with the IAXy that I know of... 
Minimum is 32k + IP overhead

SIP does work through NAT btw..

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[Asterisk-Users] Re: Asterisk and Pleiades P32mxi [followup]

2004-04-20 Thread Peter Nixon
-BEGIN PGP SIGNED MESSAGE-
Hash: SHA1

On Thursday 15 April 2004 00:38, Peter Nixon wrote:
> Hi Guys
>
> I have an Asterisk box with an E100P card connected to a Pleiades P32mxi
> (http://www.pleiadescom.com/p32mxi.html)
>
> When I set the channel bank and asterisk to use Loop Start (or Kewl Start)
> to communicate calls can happily go from asterisk, via the channel bank to
> PSTN. However, Asterisk sees these calls as being answered immediately
> regardless of if the call is still ringing or actually answered. The
> channel bank has Answer Supervision installed (Voice Activity Detection)
> and the debug messages on the channel bank show that this is working
> correctly.
>
> It appears that Loop Start signaling does not contain enough information
> for Asterisk to detect the ringing state of the call, and at the
> recommendation of Pleiades I would like to change my signaling to "E & M"
> or "E & M Wink" (Actually they recommend to use "R2 Digital" signaling but
> I dont think asterisk supports this).
>
> The problem is when I configure E & M (Or E & M Wink) on both the channel
> bank and asterisk the channel bank fails to see ANY signaling comming over
> the E1 interface. Nada, nothing, zilch.. I have spent MANY hours on this
> problem with Pleiades tech support, and quite a few calls to Digium also
> but I cannot get this working. Does anyone else have a Pleiades channel
> bank?? Has anyone else gotten one working with E & M?

In a followup to this, so that the list archives will have an answer, and to 
answer the people who have mailed me privately with the same problem.

This problem was due to a bug in Asterisk. Mark has kindly fixed the problem, 
and CVS dated 2004-04-19 or later should have the fix.

The problem is that E&M signaling on E1 trunks actually uses different 
characters for the signaling to E&M on T1 trunks. Asterisk did not know about 
E&M E1 signaling so therefore any E1 devices connected to Asterisk via E1 
using E&M signaling would not understand what Asterisk was saying 

The new code in CVS adds a "signalling=em_e1" type for use in zapata.conf 
which works in the same manner as "signalling=em" but for E1 trunks.

Mark has not yet added support for E&M Wink on E1 but hopefully he will do so 
in the future.

Regards

- -- 

Peter Nixon
http://www.peternixon.net/
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[Asterisk-Users] Asterisk and Pleiades P32mxi

2004-04-14 Thread Peter Nixon
Hi Guys

I have an Asterisk box with an E100P card connected to a Pleiades P32mxi 
(http://www.pleiadescom.com/p32mxi.html)

When I set the channel bank and asterisk to use Loop Start (or Kewl Start) to 
communicate calls can happily go from asterisk, via the channel bank to PSTN.
However, Asterisk sees these calls as being answered immediately regardless of 
if the call is still ringing or actually answered. The channel bank has 
Answer Supervision installed (Voice Activity Detection) and the debug 
messages on the channel bank show that this is working correctly.

It appears that Loop Start signaling does not contain enough information for 
Asterisk to detect the ringing state of the call, and at the recommendation 
of Pleiades I would like to change my signaling to "E & M" or "E & M 
Wink" (Actually they recommend to use "R2 Digital" signaling but I dont think 
asterisk supports this).

The problem is when I configure E & M (Or E & M Wink) on both the channel bank 
and asterisk the channel bank fails to see ANY signaling comming over the E1 
interface. Nada, nothing, zilch.. I have spent MANY hours on this problem 
with Pleiades tech support, and quite a few calls to Digium also but I cannot 
get this working. Does anyone else have a Pleiades channel bank?? Has anyone 
else gotten one working with E & M?

TIA

-- 

Peter Nixon
http://www.peternixon.net/
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