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Features and Benefits
Applications
DM3 IPLink: Making the Most of Opportunity Packet-switched telephony applications are driving the convergence of data networks and the public telephone network. To create solutions that make the most of this business opportunity, you need Dialogic DM3™ IPLink™, a proven, high-performance, open development platform. DM3 IPLink supports the H.323 standard for communication across IP networks and a wide variety of vocoder algorithms for complete IP compliance. Based on the modular DM3 mediastream architecture, a powerful and scalable hardware and software development environment, DM3 IPLink lets you add processing power and ports, as you need them, on a single board. DM3 IPLink features a standard Intel® control processor and operates under Windows NT® 4.0. The combination of extensive IP standards support and open architecture in DM3 IPLink gives you maximum flexibility for building IP gateways and incorporating IP telephony capability into a wide range of computer telephony (CT) applications. Standards-Based IP Development Platform DM3 IPLink DM/IP040-LSI™ is a comprehensive, standards-based software and hardware development platform for IP telephony servers. Because it has the DSPs for voice and fax coding over IP, and the analog interfaces on board, the host is free to implement the H.323 processing to optimize performance. DM3 IPLink complies with the International Telecommunications Union ITU-T H.323 specification (including H.245 and H.225 protocols). H.323 sets standards for audio, video, and data communications across IP networks, without providing guaranteed quality of service (QOS). It also supports gatekeeper functions for address translation and bandwidth management. DM3 IPLink supports a wide range of popular H.323 conferencing software, including Microsoft NetMeeting, VocalTec IPhone, and Intel VideoPhone. DM3 IPLink works with all H.323-compliant terminals. Dialogic is committed to building standards-based products that simplify your development and reduce your time to market. A founding member the Voice over Internet Protocol (VoIP) Forum (now IMTC), Dialogic continues to be an active participant in the IMTC, the Internet Engineering Task Force (IETF), and other IP-related standards bodies. DM3 IPLink complies with IMTC/VoIP enhancements and refinements to H.323. The DM3 IPLink design also supports important open CT industry standards. The DM3 IPLink PCI baseboard supports both the SCSA™ SCbus™ and H.100 CT Bus™ specifications. The DM3 IPLink API software is compatible with ECTF S.100 call processing standards. Multiple Vocoder Support The DM3 IPLink DM/IP040-LSI board offers many optimized, low-bandwidth vocoder algorithms for transmitting audio over the IP network, including the ITU-T G.711, G.723.1, and G.729a, along with ETSI and MS-GSM. It includes the T.38 fax-over-IP coder as part of the standard release. These algorithms use a variety of coding techniques, bit rates, and frame sizes to compress audio for managing data network bandwidth. The wide algorithm support of DM3 IPLink gives you the ability to sell IP-based applications worldwide. The scalable DM3 IPLink signal processor architecture makes it easy to support new algorithms as they become widely accepted or adopted as standards. Advanced features include voice activity detection (VAD) for maximum bandwidth utilization, plus embedded high-performance echo cancellation and out-of-band DTMF processing optimized for the IP network. You can fine-tune the DM3 IPLink jitter buffers for optimum performance. Powerful, Scalable DM3 Mediastream Architecture The DM3 architecture provides access to independent, high-performance, firmware-based network protocol and media processing resources that can be operated and integrated on compatible hardware platforms. Also, the DM3 open resource architecture gives you the flexibility to easily scale processing and interface resources as needed for future application upgrades or IP telephony server enhancements. Support for standard SCbus and CT Bus connectivity gives you a growth path for incorporating other Dialogic and third-party media and network resources. Configurations You can use DM3 IPLink to build complete gateway platforms that bridge the public switched telephone network (PSTN) and the IP network. DM3 IPLink provides the telephone network interface and mediastream processing resources on a single board. To build a gateway, you need only put a DM/IP040-LSI card and a third-party data network interface into a standard PC server. Dialogic provides the voice and fax coders and H.323 stack to be run on the host CPU. You can access additional Dialogic and third-party resources through DM3 IPLink CT Bus/SCbus connections. Software Support The DM/IP040-LSI board is supported by the DM3 IPLink SDK Release 3.1 for Windows NT and higher. DM3 IPLink runs under the Windows NT 4 operating system and comes with a software package containing the Dialogic NT Native Architecture, DM3 Core Software for Windows NT, Dialogic IPT Software, complete documentation, and gateway demonstration code. Standard Dialogic DM3 Direct Interface APIs are also included. The DM3 Direct Interface gives developers flexibility for customizing and controlling the low-level application details. DM3 IPLink Technical Specifications*
* All specifications are subject to change without notice Software Requirements Downloaders, drivers, and libraries are provided for each host operating system (OS) Signal processor OS: SPOX® from Spectron Microsystems Host System Requirements Operating system: Windows NT 4 for Intel CPUs DM3 IPLink Product Development Kits: contact Dialogic for offerings and customer qualifications
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