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Optiset E Entry and Basic for Hicom 300 E, Quick Reference Guide Siemens, a German company has been making sophisticated phone systems for quite some time. Feb 1, 2000. accordance with the instructions, may cause harmful interference to radio. Siemens, Hicom, and Optiset are registered trademarks of Siemens.
Optipoint 500 User Guide - Telcare They manufacture telephone PBX systems, Unified Communications systems and other voice products to suit every size and kind of business. Before You Begin. These operating instructions describe the optiPoint 500 economy, optiPoint 500 basic. Use only orinal Siemens accessories → page 101.