VI2003 IP PHONE ราคา 1,700. บาท ทนทาน ใช้งานง่าย คุุณภาพดี

IP  PHONE VI2003  is a High Price-performance Budget IP Phone, easy to use. SIP (RFC3261, RFC2543) Support codec: G.711A/u, G.722,G.723 high/low, G.729 A/B 2 x network - Ethernet 10Base-T/100Base Features and Benefits VI2003 is ideal for both the small office and general enterprise users.Enterprise SIP phone's new design and enhanced features address the need for an elegant IP handset solution for the executive office at a highly competitive price. VI2003 is an Internet based voice network phone terminal, which adopts multiple voice control protocols and voice compression coding methods to directly convert analog voice into IP packet for internet transport, thus effectively using the existing bandwidth to provide PSTN quality voice service. VI2003 supports SIP protocols,support Bridge and Router model.Support and dual public server, offers Two Ethernet interfaces and is compatible with various softswitch systems and VoIP voice gateways to provide broadband IP voice service. VI2003  supports traditional telephony features such as Flexible dial map, Hotline, Empty calling reject, Black list for reject authenticated call, limit call, No disturb, Caller ID as well as advanced enterprise features such as 2 independent SIP accounts, 3-way and conferencing.