All telephone and voice messaging service providers are invited to take part in the process. Whenever we put out a notice of consultation, they are informed.
The costs associated with upgrading the network can definitely be a challenge. However, should the industry have the resources to bring small providers together, or will some providers depend on a large provider on the back end? It shouldn't necessarily be a barrier if the company is small. There are benefits in moving from time division multiplexing to the IP network. It's possible to save money by doing so.
I'd like to answer your question about the technology and the approach, if I may. Telephony over IP relies on broadband Internet. It's easy for a teenager sitting in a basement somewhere in India to connect to the Internet, obtain a dialling device online and use it to make millions of phone calls.
The return on investment is so appealing that, even if they reach only one per cent of their target, getting one person to fall for the scam is extremely advantageous.