Four key things that your business should be doing to prepare for the ISDN switch off, including:
Find out if you are an ISDN user.
Assess your business needs.
Choose your ISDN replacement solution.
Prepare for IP Telephony deployment.
This year Telstra will begin to shut down the Integrated Services Digital Network (ISDN). If your business is still using traditional phone lines, you must prepare for a change or risk having your calls cut off.