[Iaxclient-devel] IAX2 calls dropping afet 65 secs -- solved?

[Michael V. D. <mv...@va...>]

Steve Sokol and I have been trying to track down this problem for quite =
some
time.

I think that the problem had nothing to do with scheduling, but with =
native
transfers.

(I think that iax.conf needs a canreinvite parameter, like sip.conf)

I changed the debug code to print to a log file (since wxWindows appears =
to eat
stderr) and found that the problems seemed to be occurring when asterisk =
sent a
TXREQ and the softphone sent a TXCNT.  And another TXCNT.  And another =
TXCNT.
And .....  the asterisk sent several TXREJs and then audio stopped =
flowing.

I tried to follow the chan-iax2 code in the asterisk code, but then =
looked at
the iaxlib code on the digium ftp site.

Then I looked at the CVS *libiax2* code.  Aha, we're out of date.  I =
noticed
that we weren't applying the apparent_address when we were sending our =
TXCNT, so
I just copied the iax.c from digium's libiax2 CVS into the iaxclient's
libiax2/src and recompiled.

IT WORKS (mostly)

iaxComm -> asterisk -> iaxComm works fine if there's no NAT anywhere in =
the
picture.

Steve Sokol tells me that=20

iax Phone ->|
            |linksys router -> asterisk
iax Phone ->|

doesn't work.

I've found that

iaxComm -> asterisk -> NAT VPN -> iaxComm

doesn't work.

Steve Kann:  I'd like to update the iaxclient CVS to have iax.c from =
digium, but
with the addition of Steve Sokol's blind_transfer function, OK?

Michael (aka Steve V)