| 英飞凌EASY5120 无线VoIP路由器解决方案 |
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| 作者：未知 来源：英飞凌 点击数：159 更新时间：2008-5-9 |
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英飞凌(Infineon)公司 EASY 5120参考设计平台具有无线VoIP路由器功能,它能使系统工程师快速开发出VoIP路由器产品. EASY 5120参考设计是基于Infineon的VoIP,蔼SLIC, SoC和无线LAN技术,能通过无线和有线接入提供极好的语音质量和高速数据传输.本文描述了参考设计的应用,软件特性,硬件特性以及完整的无线VoIP应用案例.
EASY 5120 Wireless VoIP Router Reference Package V1.7
The EASY 5120 reference package demonstrates Infineon’s Wireless VoIP router capabilities. This reference platform allows system engineers to develop time-to-market VoIP router products. The EASY 5120 reference design is based on Infineon’s VoIP, SLIC, SoC and wireless LAN technologies to provide excellent voice quality and high data transmission throughput through both wired and wireless access.
VINETIC-2CPE (PEB 3332 HT) a hardware DSP, together with SLIC-DC (PEF 4268 T) provide excellent voice quality. In the software package, the SIP protocol, supplementary services, QoS capability for voice and fast NAT are embedded.
应用:
The EASY 5120 reference package meets all relevant requirements for voice transmission and supports industry standard vocoders (G.711 a/u, G.723, G.726, G.728 and G.729), dynamic jitter buffer, T.38 fax relay and line echo cancellation. The package consists of the ADM5120 network processor, SLIC-DC, VINETIC-2CPE, and WIldCard-G 802.11g wireless module. A fully software-based programmable AC/DC interface provides multi-regional compatibility without the need for hardware modifications for simplicity of design and reduced BOMs.
硬件特性:
■ One WAN interface on-board
■ Four LAN interfaces on-board
■ Two POTS interfaces for analog telephones or fax machines
■ One optional FXO interface, connect to PSTN
■ 802.11g wireless module with Mini-PCI interface
■ RS-232 daughter board serial interface
■ Support for EJTAG debugger interface
■ Requires +12 V power supply
软件特性:
■ Embedded Linux® kernel version 2.4.31
■ Device drivers for all internal peripherals
■ Supports TCP/IP related networking protocols (IP, TCP, UDP, ARP, RARP, ICMP, DHCP, PPP, and PPPoE)
■ NAT, NAPT, ALG, Firewall, Address filtering, DNS, NTP, UPnP
■ STUN compiles with RFC 3489
■ Download function via TFTP
■ Web based configuration
■ SIP complies with RFC 3261
■ SDP complies with RFC 2327
■ Media transport through UDP and RTP/RTCP
■ Caller ID display/transmit
■ Supplementary call features (call on hold, call transfer, call forwarding, call waiting and 3-way conference)
■ In-band DTMF signal transmission
■ Provides jitter buffer adjustment (fixed or dynamic)
■ Silence Suppression, Voice Activity Detection and Comfort Noise Generation
■ Line Echo Cancellation complies with G.165/G.168
■ Voice Codec includes: G.711, G.723.1, G.726, G.728, G.729 A/B and G.729E
■ Provide FAX pass-through (G.711) and FAX relay (T.38)
■ Provides QoS including: DiffServ marking, Type of Service (ToS) marking, voice and data traffic prioritization and bandwidth management.
下图为参考设计外形图:
完整的无线VoIP应用案例:
详情请见:
>http://www.infineon.com/dgdl/EASY+5120-VRT+Tool+Brief+v1.7.pdf?folderId=db3a304412b407950112b408e8c90004&fileId=db3a304412b407950112b40a8d1905fe
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