Supports: Microsoft Teams Universal adapter for VVX 150, 250, 350, 450, CCX 400 The telephone is charged via PoE. 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 CCX 400 1Y Plus Service (487P-49700-112) Poly CCX 400 3Y Plus Service (487P-49700-312) The service can be extended.