Siemens supplies the optipoint 150s is an entry-level model for voice-over-if telephony, designed for seamless integration in any sip-based standard platform for communication solutions in the enterprise and carrier markets. It allows users to make calls in a simple, convenient and reliable manner and has an excellent price-performance ratio. This sip phone features a two-line display and key functions such as call forwarding, call deflection conference, speakerphone, mute, redial and stun protocol.
