RADVISION: Based in Tel Aviv, Israel, IP solutions provider of IP-trunking via WAN links at predictable QoS levels. RADVISION Ltd. markets their viaIP 3G-324M telephony gate- Targeted to large enterprises wanting an enhanced total ways solutions that support real-time, bi-directional streaming converged platform for circuit-switched, packet-switched and of video telephony sessions between mobile users and other mixed configurations, Siemens’ HiPath AP 3000 family of ac-mobile devices, desktop video cameras and videoconferencing cess points are stackable cabinets in an IPDA (IP Distributed room systems. They offer MPEG4, H.263, AMR, G.711, G.723 Architecture) solution at a remote location or a rack mountable support for quality video as well with full protocol conversation option. It is capable of supporting both local trunking options between 3G-324M, H.323 and RTSP. Additionally, viaIP 3G- and IP networking to ensure remote redundancy in the event 324M is interoperable with H.320 and SIP networks. of an IP network failure ( http://enterprise.siemens.usa.com –561-

RADVISION’s gw-P20/M gateway is based on the RADVISION 923-5000).

H.323 version 4.0 stack and the 3G-324M protocol stack. Vocal Tec Communications: Herzliya, Israel-based VoIP equip-RADVISION positions the gw-P20/M as a solution that enables ment vendor Vocal Tec’s signature enterprise VoIP gateway solu-mobile video telephony to exploit additional IP network-re- tion is their carrier-grade as well as enterprise-grade Essentra BAX sources, such as multipoint conferencing bridges to host three Broadband VoIP Access Platform. Vocal Tec positions Essentra to or more parties in a single session, multi-protocol gatekeepers carriers as a scaleable, turnkey solution enabling them to de-and terminals, as well as 3G-324-enabled mobile devices ( www.liver residential and hosted enterprise VoIP services over any radvision.com – US office: 201-689-6300). broaband infrastructure. For enterprise customers, the Essentra

Siemens Enterprise Solutions: A division of German-based BAX supports VoIP, VPNs and a wide range of IP-Centrex technology conglomerate Siemens AG, Boca Raton, Florida- features. A web-based subscriber self-provisioning interface based Siemens Enterprise Solutions offers several enterprise enables subscribers to control their own services, thereby al-VoIP product families. HiPath AP 2550/70/80 products enable lowing service providers to reduce their operating expenditures Quality of Service at the LAN/WAN link while prioritizing VoIP ( www.vocaltec.com –US office: 201-363-9698). V and other critical applications between sites across a distributed enterprise. Siemens Enterprise Solutions markets the 2500 Russell Shaw is also our Features Editor. He’s author of the Family as an efficient solution to deliver QoS for converged ap- book, Wireless Networking Made Easy. You can reach him at plications on existing corporate IP infrastructures with support rshaw@vonmag.com.