Telephone Type: IP Phone Multiline Operation Capability: YES Lines Supported: 8 Conference Call Capability: Support Voice Mail Capability: Support Speakerphone: Support Call Forwarding: Support Call Hold: Support Call Transfer: Support Display Type: LCD Display Status Indicators: Support Volume Control: Support Hearing Aid Compatible: Support Network Ports Qty: 2 Network Protocols: Gigabit Ethernet, SIP Power Over Ethernet (PoE) Support: Support Voice Codecs: G.711 (A-law and U-law), G.729AB, G.722 (HD Voice), G.722.1, iLBC, OPUS VoIP Protocols: Support Additional Features: Stay informed with style with the surround light status indicator with RGB mixing. Designed for the hybrid office with NFC technology for advanced integrations. Your phones stay cleaner for longer with integrated Microban antimicrobial protection. Dimensions & Miscellaneous Color: Black Service & Support Service & Support Type: 1-year limited warranty Special Feature RoHS: Y TAA: YES