Acoustic echo cancellation (AEC) , Comfort noise generation (CNG) , HD Voice , Packet loss concealment (PLC) , Voice activity detection (VAD). Chinese , Danish , Dutch , English , French , German , Italian , Japanese , Korean , Norwegian , Polish , Portuguese , Russian , Slovenian , Spanish , Swedish. A-Tick , ANATEL , AS/NZS 60950-1 , C-Tick , CAN/CSA C22.2 No. 60950-1 , CISPR 22 Class B , EN 60950-1 , EN 61000-3-2 , EN 61000-3-3 , EN55022 Class B , EN55024 , FCC CFR47 Part 15 B , GOST-R , ICES-003 Class B , IEC 60950-1 , KC , UL 60950-1 , VCCI Class B.Support Details Full Contract Period. BLF status lamps , Built-in web server. Key Expansion Module Max Qty. The item "NEW Polycom VVX 301 6 Lines PoE SIP VoIP Business Media Phone (2200-48300-025)" is in sale since Wednesday, March 29, 2017. This item is in the category "Computers/Tablets & Networking\Home Networking & Connectivity\VoIP Home Phones". The seller is "tuksycom" and is located in California. This item can be shipped worldwide.