hello Klaus

Finally i managed to do some tests

For h324m to work i had to do the following

I removed asterisk 1.4.15 and used asterisk 1.4.21.1 with the patch as 
for your instructions.

I used libpri 1.4.5 and patched it. I used zaptel 1.4.12.1 because on my 
debian machine i could not compile 1.4.11 (there is a bug about kernel, 
don't know much)

I compiled with my asterisk amr codec, app_mp4, app_transcode, app_rtsp

Now almost everything seem to work.

These are the scenarios i tested

1. 3g --> pri --> asterisk --> mp4play
     works like a charm video and audio

2. .call file --> asterisk --> pri --> 3g
     works like a charm - video and audio

3. sip softphone bria --> asterisk --> pri --> 3g
     video works fine, no audio, i noticed the following errors on 
different tries
     a. Got SIP response 415 "Unsupported Media Type" back from 10.0.0.21
     b. rtp.c:1286 ast_rtp_read: Unknown RTP codec 126 received from 
'10.0.0.21'
     c. chan_sip.c:5506 process_sdp: No compatible codecs, not accepting 
this offer!

i suspect that bria might not have required codecs

4. 3g --> pri --> asterisk --> sip
     again caller can see my video but i cannot see the caller, no audio

Tomorrow i want to try ivvr, and let you know.

I havent managed to try app_rtsp as i dont have anything to stream from, 
would vlc work?

i havnet managed to use transcoding as again i dont know how to use it, 
any example or any help?

Thank you in advance for your replies, hope you can help me solve the 
audio problem

Best regards,  to all

Dinos


On 2/12/2010 11:43 πμ, Klaus Darilion wrote:
Ok, some more questions....

I am using asterisk 1.4.15 with 1.4.11.4 libpri and 1.4.12.1 zaptel

The production system I have is still running asterisk-1.4.21.1 with libpri-1.4.5 and zaptel-1.4.11.

I do not know if newer/older versions work fine too.

Do you think i should change to a more recent asterisk and libpri and
dahdi instead of zaptel? I suspect that zaptel might be causing the
problem, as i am having trouble to start it again after an asterisk
disconnect

So, what happens exactly - does Asterisk crash?


asterisk-video*CLI> module load chan_zaptel.so
[2010-12-02 11:25:27] WARNING[9033]: loader.c:362 load_dynamic_module:
Error loading module 'chan_zaptel.so':
/usr/lib/asterisk/modules/chan_zaptel.so: cannot open shared object
file: No such file or directory
[2010-12-02 11:25:27] WARNING[9033]: loader.c:646 load_resource: Module
'chan_zaptel.so' could not be loaded.

If i reboot then everything will be fine and i will be able to make
normal calls

what about reloading the zaptel kernel modules? (rmmod, insmod/modprobe)

Also i read about a patch in libpri in order to make outbound 3g calls,
which in fact is what i want to do. I havent applied any patch to
libpri. Should i and if yes where do i get it

The patch is onyl necessary for proper signaling of outbound calls. Thus, in your case where you test with inbound calls there is no need to patch yet.

Finally it is a pitty that there is no little wiki about this wonderfull
project, i am having difficulty to find dialplans to test, like how to
use app_transcode and how to set up test environment e.g. how to make
sip to 3g and vice versa

True.

Klaus




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