Intertel GMX-256 Installation and Maintenance Manual - ‘combo” IMX/GMX 440.8074 Issue 1 11-94
Intertel GMX-256 Addendum to Installation Manual for 4.0 software 440.8081 01-96
Intertel GMX-256 Hardware Suplement to the Manual 440.8079 06-95
Intertel GMX-256 Installation and Maintenance Manual - original GMX-only (superceded by combo) 440.8032 Issue 1 08-92
Intertel IMX 256-832 ATTENDANT COMPUTER CONSOLE MANUAL