Firstly, make sure that you have converted your engin account to a BYO account if you plan to continue to use it, and write down your username and password.

**** Warning: This will reset all settings on the box to the factory defaults ****

1. Disconnect your computer and the box from the internet
2. Pick up your phone handset and dial ****
3. At the menu prompt dial 73738#
4. Then press 1 to confirm the factory reset
5. Pick up your phone handset and dial ****
6. At the menu prompt dial 1# and write down the IP Address
7. Go to the IP Address that was announced in a web browser
8. Select ‘admin’ and ‘advanced’ options
9. Go to the provisioning tab
10. Change ‘Provision Enable’ to no

Once all these steps are done, you can use the box with any provider, or continue to use it with engin using your BYO username and password.

Download Trixbox CE ISO

*** Caution: PC Hard disk will be wiped ***

Boot PC with CD and follow install steps

Set Passwords:

passwd
passwd-maint
passwd-meetme

Check IP address and MAC address: ifconfig

Set Time Zone: config

Set time and date: date MMDDhhmmYY

Update CentOS: yum -y update

Using engin BYO

edit sip_custom.conf

maxexpirey=3600
defaultexpirey=600
canreinvite=no
nat=yes
externip =
localnet=192.168.0.0/255.255.255.0

G729 Codec install

• cd /root/
• wget ftp://ftp.digium.com/pub/telephony/codec_g729/asterisk-1.2/x86-32/codec_g729a_v32_i686.tar.gz
• tar xzvf codec_g729a_v32_i686.tar.gz
• wget ftp://ftp.digium.com/pub/register/x86-32/register
• cp /root/codec_g729a_v32_i686/codec_g729a.so /usr/lib/asterisk/modules/
• rm /usr/lib/asterisk/modules/codec_g729b.so
• chmod 755 /usr/lib/asterisk/modules/codec_g729a.so
• chown root.root /usr/lib/asterisk/modules/codec_g729a.so
• chmod 500 /root/register
• chown root.root /root/register
• /root/register G729-1234ABCD
• asterisk -rx “restart now”
  
• asterisk -rvvv
• *CLI> show g729
• 0/0 encoders/decoders of 2 licensed channels are currently in use

ftp.digium.com=>69.16.138.164

Replace sounds with Australian voice recordings

* Log into your asterisk@home server
* type wget http://files.voipshop.com.au/ausounds.tar.gz [enter]
* For backup type : tar cvfz backupsounds.tar.gz /var/lib/asterisk/sounds/ [enter]
* type tar -zxvf ausounds.tar.gz -C /var/lib/asterisk/sounds/ [enter]
* Done. Your asterisk sound files are replaced.

At 5 minute intervals during a call engin’s servers will send a re-invite. If it doesn’t get a reply within 32 seconds, it terminates the session. This is done so if you drop your internet connection, you don’t end up with calls staying open and you still getting billed for them. Other VSPs will do similar things at different time intervals e.g. Nodephone drop at ~11 minutes. Engin probably have one of the smallest re-invite intervals and hence to the uneducated, it could appear to only happen to engin and not other providers.

It is generally always a NAT issue in local hardware (router). If the re-invite request is not transversing your NAT router and reaching your ATA, your ATA never has a chance to respond, hence the call is terminated at 5:32.

More notes on Whirlpool FAQ