the voip phone ywh800b - Product

Other Specification : Key Features �� Support 5 Navigation/menu/volume Keys, 13 Dedicated Function Keys For: HOLD, SPEAKERPHONE, SEND/REDIAL, MUTE, TRANSFER,CONFERENCE, And MESSAGE(with Message Indicator),LINE1,LINE2,DND,INTERCOM,PHONE BOOK,PICK UP. �� Support SIP 2.0 (RFC 3261), TCP/UDP/IP, RTP/RTCP, ICMP,ARP/RARP, DNS, DHCP, NTP, PPPoE, STUN, UPNP, Etc. �� Support Various Codecs Including G.711 (PCM A-law And Ulaw),G.723.1 , G.729A, G.726. �� Support Standard Encryption And Authentication (DIGEST Using MD5, MD5-sess) �� Support For Layer 2 (802.1Q VLAN, 802.1p) And Layer 3 QoS (ToS, DiffServ, MPLS) �� Support Silence Suppression, VAD, CNG, G.168, And AGC �� Support Automated Provisioning For Mass Deployment ,RTP And TLS(pending)for Security Protection �� Support Automated NAT Traversal Without Manual Manipulation Of Firewall/NAT �� Support Numeric Caller ID Display, Hold, Transfer, Forward, 3-way Conference, In-band And Out-of-band DTMF, Call Waiting, Call Log, Off-hook Auto Dial, Auto Answer, Downloadable Ringtones, And Intercom, Paging,pick Up, SMS(these Function Need SIP Server Supported). ��

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