[Asterisk-Users] Asterisk behind NAT << How to do it.

[Arnold Ligtvoet]

Leif wrote:
> Awesome!  Have you tried the newer patch / diff for 1.259 (which as of
> right now is the newest chan_sip file).  If you goto bugs.digium.com and
> login anonymously and jump to bug 104, then you can get the newest
> patch.  Same instructions as before.

Installed the new patch, no errors here. Ran make and copied chan_sip.o. All
went fine.

> I just updated it to test the new sip.conf structure which is
>
> externip=
> localnet=
> localmask=

Updated my sip.conf to match these settings. The result seems to be better,
yesterday I noticed a slight delay in the setup of the audio channel, the
speaking clock would only start at the second word, this is now gone.

> Still working great for me here!
>
> BTW!   Can you login to the bug tracker and post a comment ?  Thanks!

I do have one strange issue. I have a test setup here which is very simple.
* server and one windows machine. * is connected via ISDN (chan_i4l) to my
home pbx. On my windows machine I installed Diax, SjPhone and SIPPS. The
strange thing I now have is that both skinny clients are able to receive
audio but not send any when I call an extension on my pbx (so external for
*). I first thought it was my mic, but diax is working fine.

I have already been looking at my sip.conf for the extensions but I'm not
sure if this is the problem. Anyway my sip.conf now is :
[general]
disallow=all                    ; Disallow all codecs
allow=ulaw                      ; Allow codecs in order of preference
allow=alaw
allow=ilbc
allow=gsm

; for fix 1.259
externip=212.238.144.173
localnet=192.168.0.100
localmask=255.255.255.0

[phone1]
type=friend
host=dynamic
defaultip=192.168.0.2
dtmfmode=inband
mailbox=1000 ; Mailbox for message waiting indicator
context=default
callerid="Me" <2124>
;reinvite=no
;canreinvite=no
;nat=yes
;insecure=yes

I'll wait your reply for the one-way sound 'issue' (probably me!) before
posting to the bugtracker. Hopefully someone has some clue as to why my sip
clients are not able to send sound.

Thanks,
Arnold Ligtvoet.