The Polycom SoundPoint IP 330 is a two-line SIP phone that delivers high-quality audio for crystal clear calls and supports a wide range of business telephony features. It has an enterprise-grade feature set including two lines, speakerphone, shared lines, presence, conferencing and call handling. The phone offers easy installation, provisioning, interoperability with various IP PBX and softswitch platforms, and can be powered by PoE or an external AC adapter.