It usually takes about four to six weeks to get a new telephone system installed. However, the time it takes to get a new system up and running depends on a variety of factors, including the size and complexity of the system, the availability of technicians, and the scheduling of installation appointments.

It depends on the type of phone system and the complexity of the installation. For a basic landline phone system, it can take as little as a day or two to get installed, but for more complex systems with VoIP or multiple lines, it could take weeks or even months. It's always best to consult with a telecommunications company about the specific requirements for your business, as each system is different. Generally speaking, however, you can expect anywhere from 1-4 weeks for a new phone system to be installed, depending on the complexity and your specific needs.