pwlib, OpenH323 and OpenOpal status not good?

[Craig Southeren]

On Wed, 11 Oct 2006 21:55:19 +0200
Santiago Garcia Mantinan <manty at debian.org> wrote:

> Hi!
> 
> This week I had the chance to test our openh323 and opal libs against the
> phone system of my work, it is an ericsson pbx wich has h323 capabilities.
> 
> I tested with ohphone, simph323, simpleopal, ekiga and gnomemeeting.
> 
> I could only login to the Ericsson with simph323 and ohphone, I could get
> phone calls and place them using any of these but I didn't get any sound, in
> fact, I was not getting any udp traffic coming through, I checked the
> firewall of my machine but that didn't seem the problem, so I'm thinking if
> maybe the supported codecs were not compatible between my Debian and the
> Ericsson system. Any sugestions on this?

Did you ensure the new plugin codecs were available to be accessed by
the application?
 
> As for ekiga, gnomemeeting and simpleopal... I just could not get them to
> login with the machine, even though the extension that I was using didn't
> even had a password, I just had to specify the user to ohphone and simph323
> to allow them to login. Again... any ideas on how to check with any of
> these?

A log file will be needed to find this problem
 
> On the other side I thought I had not looked at any of these programs for a
> long time, being on the SIP/IAX side right now, so I had a little practice
> today here at home between a couple of machines just with the command line
> tools and found some weird things...
> 
> The clients I used were pul and zul, pul is running a 2.6.18 kernel compiled
> by me and only has ipv4 support on it, it runs sid with everything up to
> date, zul on the other side is a pure Debian machine running debian's 2.6.18
> and thus with IPv6 support, it runs mostly etch with the stuff from sid
> needed to be able to install ekiga from there, which means that it has
> latest libopal (2.2.3.dfsg-1).
> 
> First of all, the libpt alsa support seems to be broken, at least as tested
> through ohphone, it says that I don't have permission for full duplex when
> I'm using both machines in full duplex with twinkle for example. I could get
> it to place a call using oss, but I had the following troubles:

I've heard lots of reports of problem with the ALSA driver.
That driver is completely broken on my FC5 machine, so I am unable to
help with this.
 
> If I try to place the call from a machine with IPv6 interface to another one
> with just ipv4 support and I use the name this is what happens:
> 
> Listening interfaces : ALL:1720
> Waiting for incoming calls for "manty"
> Command ? c pul
> manty is calling host pul
> Command ? Transport error calling "ip$pul:1720"
> 
> If I use the IP instead of pul everything goes ok (pul is resolved ok from
> any program running on the IPv6 client.

Once again, log files will be needed.
 
> Second... using the OSS support, after I hang the first call, if I try to
> place another one, the sound doesn't go through, in fact, even though the
> logical channels for audio are announced to be stablished, if I try to turn
> silence detection off interactively, I get an error that there is no channel
> stablished. This happens even though I restart both ohphones, the only way
> to solve this is by unloading the alsa driver on one of the clients and then
> loading it again. These is what I see on the receiving client when this
> happens, as you can see first call goes well, but second one doesn't:

I've also has problem with the OSS driver. The biggest problem is that
OSS only supports the sample rates supported by the hardware. This means
that many chipsets that only do 48khz are not usable at 8khz.

   Craig
 
-----------------------------------------------------------------------
 Craig Southeren          Post Increment – VoIP Consulting and Software
 craigs at postincrement.com.au                   www.postincrement.com.au

 Phone:  +61 243654666      ICQ: #86852844
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