Telephone service companies have created a special communication service without the need to use customer's equipment. It's called a "virtual number". It also has a text type of "virtual SMS center." Thanks to the virtual link you can make calls or send messages while connected to the equipment of the company.
TELTUB Inc. is a provider of unprecedented phone services to consumers and small businesses. TELTUB phone services can interact, in real-time, with other messaging technologies and platforms.