SIP Trunking is a great option to lower the cost of your phone calls. We installed a new Avaya IP Office 500 phone system at the beginning of last year, so of course I was keen to get VoIP setup quickly through 2talk to cut the cost of calls going over our ISDN lines. The Avaya…

Here is the Avaya ARS dial plan we are using with our 2talk SIP trunk. Please note the following: Line group 0 is our PSTN group, you’ll see below emergency calls and Telecom service numbers are set to go over PSTN. Freephone numbers also go over PSTN because they are free. 3XXXXXX & 9XXXXXX are…