A470 Voice recordings with Linux

Normally to get the correct CCITT format, one has to use Windows Sound Recorder. However, as brought out at http://forum.epygi.com/showthread.php?2444-CCITT-A-Law-conert-with-Linux, it can easily be done with the Linux command line.

Therefore (using Linux only):

1. I recorded with Audacity.
2. Exported the Audacity project to .wav
3. Converted the file with sox input.wav -A -c 1 -r 8000 output.wav
!Update: sox input.wav -e a-law -c 1 -r 8000 output.wav

It is interesting to note, that converting the .wav with MS Sound Recorder produced distortion, whereas the conversion with SOX was crystal clear.


A470 audio file format: CCITT, A-Law, 8kHz, 8bit, mono.

Mitel MX-ONE Missed Call / Call List on DBC442202

The MX-ONE web interface for configuring the IP phone config files does not provide the option to enable Call List (Missed Call) on the programmable keys of the DBC 442202.

The option can be enabled manually:

Got to the root folder of the web server (where the IP phone files are stored).
Backup the existing d42x02-config.txt file.
Edit the file:

[FunctionKeysDBC422]
Settings=5
CallWaiting=8
CallBack=1
CallList=9
Transfer=2
FreeOnSecond=3
MessageWaiting=7
Conference=0
EnablePBXStoring=YES

The IP phone will have to be restarted so as to read the new config.

NEC SL1000 Telnet access

To be able to run ping and more:

10-20 Item 6: Set DIM Output port to TCP Port 23.
90-31 DIM Access: Enable, set username and password.

Possibly a System Initialisation -> 2nd Initialisation will be needed.

Mitel MMC and SIP trunks

Some SIP providers do not recognise '+' in the numbering. So if the MMC is battling to receive calls out of office ("blue" registration), the problem is the '+' numbering. Change the number to '00' on the Controller Web interface and the host communications server.

vsftpd OpenSUSE 13.1

vsftpd 3.0.2 works fine on openSUSE 12.1 but fails to list the directories in OpenSUSE 13.1.

Here is the fix:

Edit /etc/vsftpd.conf

Add the following line at the end:

seccomp_sandbox=NO

Restart vsftpd: systemctl restart vsftpd

Should work fine now. Remember to check the firewall to see that it is allowed.

MX-ONE 7433ip missed calls

On the phone:

Call list button -> More... -> Log missed calls.

Call list button is the middle button on the row of transparent keys

However, if the call log is empty this option is not available. Therefore, make a call to the extension and answer it. Now the call log has data, and More... option is available.