Nec DS1000 Pdf User Manuals. View online or download Nec DS1000 User Manual, Manual. 22-Button Display Telephone (P/N 80573). Support and online pdf manuals for NEC NEC-80573 - 22 Button Display Phone. Manuals and user guide free PDF downloads for NEC NEC-80573 - 22 Button We have the following NEC NEC-80573 manuals available for free PDF download. Download a free PDF of the User Guide for the NEC NEC-80573 - 22 Button Display Get NEC NEC-80573 - 22 Button Display Phone PDF manuals and user guides. This manual has been developed by NEC America, Inc. It is intended for the use of its 22-Button Display Telephone P/N 80573 at a glance — Display . Amazon.com : New-22 Button Display Phone - NEC-80573 (Renewed) : Office Products.Dial; Conference; Speaker; Hold; and others. Compatibility. Compatible with the Nitsuko DS1000 KSU and Nitsuko DS2000 KSU. Documents. NEC DS1000/2000 User Guide