Question - I have a Spirit Phone System, do I have to use a Spirit Phone?

Question - Currently, I have a Spirit Communications System 308/616 phone system set up in my office and need new phones.  Can I plug in any ordinary phone with this system to work or do Spirit phones only work with this system?  

Answer - No, you cannot plug in just any phone and it work. The AT&T Spirit phone system was made that only Spirit phones will work.  You can use either the 6 button or 24 button phones and get them in either cream or black, but any other phone you try on the system will appear as defective or dead.