Telephone systems & CTI Description * 1. What are you looking for? We are looking for a phone system with caller id, answer machine, call divert, missed call list, and call hold facility. Quality control: This is an upgrade of an existing system, 1 - 4 phones to be connected to central. * 2. Is this a new telephone system or an upgrade of an existing one? An upgrade of an existing system * 3. How many telephones do you want to connect to your central? 1 - 4   4. In the following functionalities, which ones would you like to have on your telephone system?   5. In the following functionalities, which ones would you like to have on your telephone sets or on a few of them?