1. (VOIP-1210) Present Phone Usage table to MAXadmin and MAXadmin Light users when a phone is selected
2. (VOIP-1213) Add IVR Directory and Phone Service Directory selections to MAXadmin phone extension configuration page
3. (VOIP-1215) Cleanup the AGI folder
4. (VOIP-1218) Improve the performance of hourly poller DB records purge operation