Before you start you must have frimware version 1.00.03 installed.
packetman.com.au/download/linksys/WAG54GP2-EU_AnnexA_ETSI_v1.00.03.zip

1. Login to the WAG54GP2 using 192.168.1.1 via your web browser
2. Enter the username: admin and password admin
3. Go to the Voice menu

1. Go to the SIP tab
   
2. Under the SDP Payload section, change the G729a Codec name to G729 (i.e. remove the a).

You can configure the Linksys WAG54GP2 to automatically retrieve the current date and time (Including daylight savings). To do this you will need to enter in a NTP server.

1. Go to the System tab and add the following NTP server
2. You can use the following DNS:  202.61.12.230,   202.61.13.102
3. Enter Primary NTP Server: au.pool.ntp .org
   

For NSW these settings will work:

1. Time Zone: GMT+11:00
2. Daylight Saving Time Rule: start=3/-1/7/3;end=10/-1/7/2;save=-1
   

1. Go to LINE 1 and add the following authentication information.
2. Enter your user data as per the image below

• Proxy: byo.engin.com.au
• Use Outbound Proxy: Yes
• Outbound Proxy: mel or syd.byo.engin.com.au
• Register Expires: 900
• Display Name: Your Name
• User ID: Your engin phone number
• Password: your engin password (within the summary page)
• Use Auth ID: Yes
• AUTH ID: Your engin phone number.
• Supported codec ’s: g729a & g711a

Next, change the Audio Configuration heading.

1. The following change is required.
2. Preferred Codec : G711a.
   

(Copy and paste the following dial plan at the bottom of the LINE 1 page)

(*xx|13[1-9]xxxS0|1[38]00xxxxxxS0|190xxxxxxx!|000S0|0011xxxxx.|[2-9]xxxxxxxS0|0[2-9]xxxxxxxxS0)

Description
*xx = special *number dial
13[1-9]xxx = dial pizza numbers etc
1[38]00xxxxxx = 1300 and 1800 numbers
190xxxxxxx! = Disable 1900 numbers (remove ! to enable)
000S0= Fire/Police/Ambulance
0011 = International
[2-9]xxxxxxx = any local number
0[2-9]xxxxxxxx = any interstate numbers