Beijing Reuters Katherine Technologies Co., Ltd., established in 2001 ,, was founded 14 years has focused on the development and construction of the call center system. Should our customers, now open Taobao shop, hoping to provide our customers a more convenient services. HX411: have an analog extension port, an analog trunk port voice gateway prefix = o ns = "urn: schemas-microsoft-com: office: office" HX4 series of small capacity Intelligent Analog Voice Gateway (IAD) is applied to the home, small office and mobile office telephone network (VoIP) small-capacity intelligent access devices for VoIP carriers and enterprises to deploy converged communications to provide reliable, low-cost, flexible means of access. HX4 with a variety of interfaces, while connecting telephones, computers, broadband internet and telephone line. Both of traditional and VoIP telephone terminal "Combo", but also to achieve the traditional telephone terminals, VoIP networks and traditional telephone network (PSTN) or enterprise groups switch "triple play." HX4 series consists of three models. Shape with desktop and wall mount design for easy installation, hardware with a clock frequency of 400 trillion ARM9 chip, highly integrated solutions, the operating system uses the Linux kernel, application software design follows the self-MX series gateway, with stable performance, complete functions, high flexibility, compatibility and good. HX4 wisdom and is a large system of quality standards and cost-effective VoIP equipment. Typical applications - both free IP telephony - VoIP carrier services - spanning traditional telephone and VoIP carriers - office phone is connected to the headquarters of the network IP-PBX - office phone outside the headquarters of IP- connected via a network PBX SIP protocol RFC3261 RFC3262 RFC3264 RFC3311 RFC3515 RFC3581 RFC3966 RFC4028 SIP registration (by port or by Gateway) SIP trunk registration timeout settings backup SIP proxy point - for - point IP Communications flash signal transfer (INFO) FXS polarity reversal Caller (Bellcore and ETSI FSK, DTMF, before and after ringing ringing) set the ringer volume adjustment frequency setting flash signal width message waiting indication (FSK, polarity reversal) FXO hotline calls ext incoming calls and SIP server provides IVR second dial tone from the extension or outbound network reverse polarity detection FXO Caller Detection (Bellcore and ETSI FSK ,, DTMF, before and after ringing ringing) delay setting dial tone detection DTMF detection parameters to adjust the ringer volume set by Caller set busy (when bound FXS port is busy) media properties G.711Alaw, G.711Ulaw, G.729 A / B (Note 1) Fax T.30 and T.38 (Note 2) echo cancellation adaptive dynamic buffering static DTMF transmit buffer (RFC2833, SIP / INFO, in-band) when RTP packet length, 10/20/30/40/50/60 ms voice QoS IEEE 802.1p TOS priority and DSCP priority call control Blind consultation call forwarding busy Transfer Call Forward No Answer Call Forward Forking Call Waiting Caller ID Call Waiting Caller ID restriction of Caller ID DND distinctive ringing tone background music ringtones call programmable call release (calling control, called control) Built-in 3-way conference Based on the speed dial number routing number change (add, delete, replace) hunt group (round election, along selected) group vibration quantile plots the PSTN (when IP network failure, SIP server failures and power outages) network functions DHCP Client DNS / DDNS client PPPoE client NAT traversal (STUN) Security IP address filtering packet signaling and media stream encryption SIP / RTP / Telent / HTTP / TFTP port filtering Web interface management level (administrators and users) System management TR069 management (TR069, TR104 and TR106) (Note 1) SNMP agent, MIB v2 (Note 2) Web management interface supports configuration, data import and export, as well as software upgrades automatically configure and upgrade management log management (8) the system log troubleshooting and call tracking