Siemens Enterprise OpenStage 40 SIP IP-phone is a great solution for people working in the permanent place. This model features a large display and easy setup of various protocols such as TDM, HFA and SIP.
Nexevi International Inc. is a leader in development and production of telecommunications equipment. Nexevi focuses on the business –to-business strata, as well as the Business-to-Customer and Business-to-Government market segments.