On Thu, 17 Apr 2014, Jerry Geis wrote:
I was thinking transcoding was through PRI card - not gsm to ulaw. :)
You can convert the GSM files to ULAW using sox. I tend to transcode
everything to WAV (PCM not that funky 'GSM in WAV') because it is
relatively cheap (CPU cycles) to transcode from WAV to ULAW and everything
else in the world understands WAV just fine. If you really need to squeeze
out every last cycle, you can schedule a script to transcode WAVs to ULAWs
as needed.
So if all I am doing is originating calls, and using playback() in the
dialplan - then a system() call on completion I can expect upwards or
3000 concurrent calls?
Based on my unsubstantiated testing on my hosts, that seems like a
reasonable conclusion.
What do you do in the program executed by system()?
How do you actually test to make sure without having 3000 users to call.
Crowdsourcing?
No, it's really pretty simple.
On the 'source' host, I have a call file:
# sample-call-file
channel:sip/test@target
application:playback
data:/tmp/total
# (end of sample-call-file)
And a shell script to create the call files:
# create-calls.sh
cp sample-call-file /tmp/
chmod +x /tmp/sample-call-file
for I in $(seq 1 $1)
do
sudo -u asterisk\
cp /tmp/sample-call-file\
/var/spool/asterisk/outgoing/${RANDOM}
done
# (end of create-calls.sh)
Then, on the 'target' host I have a dialplan snippet:
[public]
exten = test,1, verbose(1,[${EXTEN}@${CONTEXT}])
exten = test,n, set(GROUP()=TEST)
exten = test,n, set(ROOM=0${GROUP_COUNT()})
exten = test,n, meetme(${ROOM:-2}, cd)
; exten = test,n, confbridge(${ROOM:-2})
exten = test,n, hangup()
Then, on the 'source' host, I can create calls with this command:
./create-calls.sh <number-of-calls-to-create>
--
Thanks in advance,
-------------------------------------------------------------------------
Steve Edwards [email protected] Voice: +1-760-468-3867 PST
Newline Fax: +1-760-731-3000
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