To determine the right system for your Industrial application, consider the following:

- The number of Outside Lines that you'll want and the type of service, i.e., Analog (POTS), Digital (ISDN-PRI or T1) or VoIP (SIP Trunking).

- The total number of digital extension, IP extensions and analog extensions that you'll need. Digital extensions generally used as staff phones within the same building that the PBX in located. Network extensions are used whenever you need off-premise telephones (across town or on the other side of the world) and analog extensions are generally used for such things as fax machines, modems, credit card readers, alarm systems, conference room speakerphones, conference bridges, gates and sometimes even simple dial-9 type, single line telephones.

- Paging Systems are usually categorized by the number of people that will be using the system. And typically, as the number of people increase, so does the level of sophistication that will be required. We have solutions for Very Small applications (using no system at all), to Small applications (4-20 people), to Medium applications (16 -24 people in 1 location), to Large applications (25-80 people in 1 location with possible Off-Premise Extensions), to Very Large applications (systems with up to 1,000 people or multiple locations using several systems connected via gateways). Below are just a few examples of what a typical system would include and the breakdown by size is of course, approximate.