The Poly Edge B Series delivers business-grade audio quality wrapped in a stylish design at an affordable price, making it ideal for all kinds of companies. Poly Edge B30 IP POE Phone features: - Four line buttons - Poly HD Voice for phone calls with life-like, vibrant conversations - Poly Acoustic Fence technology suppresses background noise - Illuminated speaker, headset and mute buttons - Status LED Please note: We recommend the Poly Plus Service for this product. The Plus Service includes the following: - Software upgrade and updates - Spare part service - Next business day - Poly Online Support Center access - Technical escalation support - 24 x 7 technical phone support - Priority technical support - Ecosystem Cloud Partner (ECPS) support - Network diagnosis tests, e-mail notifications - Discount on Professional Services - Poly Lens premium features - Enhance support calls with live video diagnosis Poly Edge B30 1Y Plus Service (487P-49825-112) Poly Edge B30 3Y Plus Service (487P-49825-312)