For reasons of cost and time, the use of home and remote workplaces is becoming increasingly attractive for companies and employees alike. Employees connected in this way can be deployed more effectively, especially in the part-time domain. Here it is important that the employee can access the company's data resources, as well as being integrated in the company's telephony infrastructure.
In addition, there should also be the option of separately dialing-in to the local telephone network. In order to protect sensitive corporate data, but also to make phone conversations more tap-proof, it is important to protect the data and telephony traffic conducted via the unprotected medium of the Internet if this exists for bandwidth and cost reasons.