Once you have signed up for an account with FaktorTel, you will need to download the Zoiper Softfone from: www.zoiper.com
Step 2:Open your now installed softphone by going to the Start Menu, then across to All Programs and Zoiper.
Click on the Zoiper icon in here and you should be presented with your softphone.
Now we need to get into the SIP Setting Menu for your FaktorTel account.
Here is how to do it:
Click on the Zoiper menu tab and select "Preferences" from the drop down list.

You will now be presented with Preferences menu screen. Click the “Add new SIP account” and you will be prompted with typing in a name for the account. In this example we have called it Faktortel

You will now need to set up the SIP account to work with FaktorTel, Fill out the fields with the following details:
Domain: sip.faktortel.com.au ( This is the FaktorTel SIP server address )
Once you have entered in the SIP Account details, press the "Register" button and you should then see a "Registered" text in the top right hand corner.
Step 6:Next you need to click onto the "Audio Codecs" tab under the "Audio options" menu and you will see a screen like below. Make sure that the only codecs under the "Selected Codecs" are GSM and U-Law, moving other codecs if any to the "Available Codecs" side.

Click OK at the bottom and you will be back to the main interface of the softfone.
Quick Numbers you can try to dial to see if everything is working.
There are a few quick automated numbers you can dial to check that everything is working.
These are:
Service Time: 123
Echo Test ( Hear your own voice ): 600
Connect to FaktorTel's PBX: 900
Any Australian 1800 Number: 1800 - XXX - XXX