asterisk users - Mar 2009 - ITSP's no longer supporting IAX?

After a variety of connectivity problems, my itsp (Unlimitel.ca) blamed the
problem on the IAX protocol.  They told me that as of Asterisk 1.4 the IAX
protocol went downhill and many carriers (like VoicePulse) are discontinuing
support for IAX.

 

Is this correct?  We are all heading for SIP?

 

Thanks,

MD

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hello,
(if this is correct):
IAX is no maintained now
but IAX2 is maintained by the Asterisk Developers Team
(i'm not sur) please si other responces
thanks
OCG Technical Support a ?crit :
>
> After a variety of connectivity problems, my itsp (Unlimitel.ca) 
> blamed the problem on the IAX protocol.  They told me that as of 
> Asterisk 1.4 the IAX protocol went downhill and many carriers (like 
> VoicePulse) are discontinuing support for IAX.
>
>  
>
> Is this correct?  We are all heading for SIP?
>
>  
>
> Thanks,
>
> MD
>
> ------------------------------------------------------------------------
>
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OCG Technical Support wrote:
> After a variety of connectivity problems, my itsp (Unlimitel.ca) blamed 
> the problem on the IAX protocol.  They told me that as of Asterisk 1.4 
> the IAX protocol went downhill and many carriers (like VoicePulse) are 
> discontinuing support for IAX.
> 
> Is this correct?  We are all heading for SIP?
I use IAX with unlimitel.ca on Asterisk 1.6, and I haven't had any 
issues at all.

The choice of router/NAT is critical though. Unlimitel recommended the 
SnapGear 560 to me, and it eliminated all the issues I was having with 
IAX going through my Sonicwall devices.

Just another datapoint for you...

- Mike

On Wed, Mar 25, 2009 at 9:04 AM, OCG Technical Support <support at ocg.ca>
wrote:
> After a variety of connectivity problems, my itsp (Unlimitel.ca) blamed the
> problem on the IAX protocol.? They told me that as of Asterisk 1.4 the IAX
> protocol went downhill and many carriers (like VoicePulse) are
discontinuing
> support for IAX.
>
>
>
> Is this correct?? We are all heading for SIP?
>
>
>
> Thanks,
>
> MD

IAX2 has been a lemon since it's inception.  Sure, some people have
success.  It seems to work OK for IAXModem.

I think the problem is that from the slightest version change to
another, two boxes with different versions and many times the same
version don't work well.

I have been saying this for many years (check the archives) and have
been paid decent sums of money to say "Oh, you are using IAX, and
switch them to SIP", everything fixed instantly.

Do yourself a favor and ditch IAX2, maybe IAX3.6 might be production ready?

-- 
Thanks,
Steve Totaro
+18887771888 (Toll Free)
+12409381212 (Cell)
+12024369784 (Skype)

Side note and very telling.  IAX.cc (Vitelity now) advised against
using IAX a long time ago.

That would be the same as CiscoGear.com advising to not use Cisco but 3Com.

Thanks,
Steve

On Wed, Mar 25, 2009 at 9:04 AM, OCG Technical Support <support at ocg.ca>
wrote:
> After a variety of connectivity problems, my itsp (Unlimitel.ca) blamed the
> problem on the IAX protocol.? They told me that as of Asterisk 1.4 the IAX
> protocol went downhill and many carriers (like VoicePulse) are
discontinuing
> support for IAX.
>
>
>
> Is this correct?? We are all heading for SIP?
>
>
>
> Thanks,
>
> MD
>

Dears,

 

 

-          Anyone know how to play an early media as (background song) with
no billing and when the call is connected the song will stop and the billing
starts.

 

Regards

 



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We had some carrier suggest we don't use IAX because SIP had a better fail
over capability than IAX.

 

I don't remember the details.  We do use both however, with acceptable
results.

 

Cary Fitch

 

  _____  

From: asterisk-users-bounces at lists.digium.com
[mailto:asterisk-users-bounces at lists.digium.com] On Behalf Of OCG Technical
Support
Sent: Wednesday, March 25, 2009 8:05 AM
To: 'Asterisk Users List'
Subject: [asterisk-users] ITSP's no longer supporting IAX?

 

After a variety of connectivity problems, my itsp (Unlimitel.ca) blamed the
problem on the IAX protocol.  They told me that as of Asterisk 1.4 the IAX
protocol went downhill and many carriers (like VoicePulse) are discontinuing
support for IAX.

 

Is this correct?  We are all heading for SIP?

 

Thanks,

MD

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Steve Totaro wrote:
> I understand you are a developer and you want IAX2 to be great.
> That is your job, but the fact is that it is not and has caused
> audio and security problems for YEARS in EVERY release. It
> should "bug" you and everyone at Digium that waves the IAX2
> flag.
Can you elaborate on these "audio and security problems" Steve? 
Looking
at the two protocol specs I cannot see a basis for your claim.  IAX
doesn't embed the local IP address in the packet data but that's surely
no
substantive security.  It does separate data and signaling at the
application-level, but again, that's no basis for such a claim.

Protocols must be looked at separately from their implementations.  From
the various responses it appears that Asterisk 1.4's implementation of IAX
has flaws.  These do not necessarily reflect on the protocol.  OTOH, there
are a lot of engineers with SIP skill and experience who, naturally, are
concerned with their investment in time, education, and experience.  While
this may or may not apply to Sonicwall engineering, it's also true that any
streaming protocol will be better handled by devices that process packets
in ASICs (high-end firewalls) rather than CPUs (PCs and low-end firewalls).

FWIW (2 data points) I get uniformly better service from our IAX trunk
provider than our SIP trunk provider.  No idea whether that's protocol,
implementation (1.4 on my side), or provider-related though I suspect the
later.

Roger Marquis

Jon Pounder wrote:
> This sounds like a bunch of gobbledegook spewed out by those very
"high
> end" firewall vendors.  Call it what you want but anything that
processes
> packets in any way and makes a decision on what to do is by definition a
> CPU.
You won't find much support for that opinion in network engineering
circles.  The processing advantage of ASICs is easily measured and widely
documented.

ASICs are particularly critical to latency-sensitive protocols and those
using small packet sizes with correspondingly high packet counts.
According to Praveen Kumar (Founder/CEO of Packet Island) the ASIC
differential is even more noticeable with interactive streaming video than
streaming audio.

Roger Marquis