IP-телефон (VP-202)

The IP Phone VP-202 is a new addition to our IP Phone family.It is designed as a low cost version of the model EP-8201.The phone has a small alpha numeric LCD, 2 Ethernet ports, and a headset port.It has all the basic features available in a traditional phones and is intended as a basic model for VoIP deployment to replace the traditional telephone service.It supports both Standard SIP V2 and H.323 V4.Customization/ODM is welcome! Key FeaturesOpen Standard VoIP Protocols (ITU H.323 V4 and/or IETF SIP V2) All standard PBX functions Four call appearances support two simultaneous calls Two 10/100 Ethernet circuits connect to the LAN and an additional device 3-Line LCD (Icons, Alphabets/Numbers, Numbers) Buttons and keys for all commonly used functions Headset port Message waiting indicator Speech quality ensured by QoS at the Ethernet and IP layers and comprehensive jitter buffer Full duplex speaker phone VLAN and QoS support NAT Transversal and router functions Menu, HTTP Web, Auto Provision support for configuration and updates Highly stable embedded Linux operating system in high performance ARM 9 Processor Basic Phone Features Call forward Call transfer Call hold Mute Redial Display caller ID Display call duration Display date and time Access voice mail Send DTMF tones Message waiting indication (MWI) 100 phone book entries 30 most recent call records for dialled, incoming, and missed calls Adjustment of LCD contrast (4 levels) Adjustment of handset volume (6 levels) Adjustment of speaker phone volume (6 levels) Enhanced Features Dynamic selection of codec Advanced jitter buffer Automatic traversal of NAT and firewall VLAN / Qos Router Echo cancellation for Speakerphone Comfort noise generation (CNG) Voice activity detection (VAD) Auto provisioning (requires auto provisioning server) On line firmware upgrade Multi-language support: English and Chinese Supported Standards ITU: H.323 V4, H.225, H.235, H.245, H.450 RFC 1889 - RTP/RTCP RFC 2327- SDP RFC 2833- RTP Payload for DTMF Digits, Telephony Tones and Telephony Signals RFC 2976- SIP INFO Method RFC 3261- SIP RFC 3264- Offer/Answer model with SDP RFC 3515- SIP REFER Method RFC 3842- A Message Summary and Message Waiting Indicator RFC 3489- Simple Traersal of User Datagram Protocol (UDP) Through Network Address Translators (NATs) RFC 3891- SIP “Replaces” Header RFC 3892- SIP Referred-By Mechanism draft-ietf-sipping-cc-transfer-04- Session Initiation Protocol Call Control - Transfer Codec: G.711 (A/µ law), GSM, G.729A/B, G.723.1 DTMF: RFC 2833, In-band DTMF, SIP INFO