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DM3 IPLink Release 4 High-Density Standards-Based IP Telephony Platforms  
Features and Benefits
Applications
The ability to make telephone calls over the Internet is driving corporate telephone and data networks together to form a single communications network. To create solutions that make the most of this business opportunity, you need Dialogic DM3TM IPLinkTM, a proven, high-performance, open development platform. DM3 IPLink supports the H.323, MGCP, H.248, and SIP standards 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 more processing power and ports on a single board, as your needs dictate. DM3 IPLink features a standard Intel® control processor and operates under Windows NT, Windows 2000, UnixWare 7, and Solaris UltraSparc. The combination of extensive IP standards support and open architecture gives you the utmost flexibility for building IP gateways and enabling IP-enhanced services. Standards-Based IP Development Platform DM3 IPLink is a comprehensive standards-based software and hardware development platform for IP telephony servers. Its optimized design incorporates all the necessary IP-related features on a single board. DM3 IPLink includes an IP protocol stack that 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 not providing guaranteed Quality of Service (QOS). Gatekeeper functions are also supported for address translation and bandwidth management. DM3 IPLink supports a wide range of popular H.323 conferencing software, including Microsoft NetMeeting, the VocalTec IPhone, and the Intel Video Phone. DM3 IPLink works with H.323-, MGCP-, H.248- and SIP-compliant terminals. Support for standard transport mechanisms such as Transmission Control Protocol/Internet Protocol (TCP/IP), User Datagram Protocol (UDP), and Real Time Protocol/Real Time Control Protocol (RTP/RTCP) is embedded in DM3 IPLink firmware. DM3 IPLink also has a sophisticated packet recovery algorithm. Dialogic remains committed to building standards-based products that simplify development and reduce your time to market. As a founding member of the Voice Over Internet Protocol (VOIP) Forum - now part of the International Multimedia Teleconferencing Consortium (IMTC) - Dialogic continues to be an active participant in the IMTC, the Internet Engineering Task Force (IETF) and other IP-related standards bodies. The DM3 IPLink product is compliant with IMTC/VOIP enhancements and refinements to H.323. DM3 IPLink design also supports important CT open industry standards. The PCI baseboard supports both the SCSATM SCbusTM and H.100 CT BusTM specifications. DM3 IPLink API software is compatible with S.100 Enterprise Computer Telephony Forum (ECTF) call processing standards. Multiple Vocoder Support DM3 IPLink offers many optimized, low-bandwidth vocoder algorithms for transmitting audio over an IP network, including the ITU-T G.711, G.723.1, G.729a, ITU GSM, and real-time fax over IP (ITU T.38). 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 deploy IP-based applications throughout the world. The scalable DM3 signal processor architecture makes it easy to support new algorithms as they become widely accepted and adopted as standards. Advanced features include voice activity detection (VAD) for maximum bandwidth utilization, as well as embedded high-performance echo cancellation, and out-of-band DTMF processing optimized for the IP network. The DM3 IPLink jitter buffers can be fine-tuned for optimal performance. Improved Quality of Service DM3 IPLink Release 4 offers improved Quality of Service (QOS) performance over IP networks. Threshold alarms alert an application when network QOS parameters (jitter, latency, and packet loss) deteriorate below user-administered levels. Threshold alarms help to improve traffic engineering for more efficient use of IP networks. They also enable dynamic decision making which allows IP calls to be rerouted onto the PSTN in the event of network congestion. The network QoS is further improved with IP Precedence. IP packets carrying realtime voice and fax can be routed with higher priority by setting the IP Precedence bits. Precedence bits can be set to a required value on a call-by-call basis. It is also possible to define default IP Precedence bits for voice and fax calls when they are set to different priorities. Lastly, Fax Spoofing improves the reliability of real-time fax over IP by compensating for latency introduced by the network. 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. The DM3 open resource architecture also 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. DM3 IPLink is available in several models and supports dynamically selectable vocoders including G.711, G.723.1, G.729a, ITU GSM, and real-time fax over IP (ITU T.38). DM3 IPLink boards supported under IPLink Release 4.0:
Configurations Use DM3 IPLink to build a variety of IP-based solutions including complete gateway platforms that bridge the public switched telephone network (PSTN) and IP networks, IP-enabled enhanced services platforms like unified messaging, contact center, follow-me, and voice activated dialing. The DM3 IPLink product family provides all of the required IP resources - data network interface, telephone network interface, IP and H.323 stacks - as well as mediastream processing resources on a single board. Additional Dialogic and third-party resources can be accessed through DM3 IPLink CT Bus/SCbus connections. Optionally, the DM3 IPLink board can use any telephone network interface with CT Bus/SCbus connections. An on-board Ethernet interface is also available. IP telephony servers using the basic DM3 IPLink can be deployed in a wide range of markets including enterprise, public telephone network, and call center applications. A majority of Dialogic SCbus network interface boards have been tested for interoperability with this release. The Dialogic Configuration Manager (DCM) also provides the option to install additional boards that have not been tested for interoperability with the IPLink platform. The following Dialogic boards have been tested for interoperability with DM3 IPLink:
Software Support DM3 IPLink runs under the Windows NT, Windows 2000, UnixWare 7, and Solaris UltraSparc operating systems and comes with a software package containing the Dialogic software architecture, DM3 Core Software, Dialogic IPT Software, complete documentation, and gateway demonstration code.† Standard Dialogic Release 4 resource APIs and DM3 Direct Interface APIs are also included. Dialogic high-level APIs provide a standards-based method for developing IP gateway applications. The DM3 Direct Interface gives developers flexibility for customizing and controlling the low-level application details. † Customers should specify the desired operating system when ordering. Software package content varies with operating system. Technical Specifications* HARDWARE SPECIFICATIONS:
HOST INTERFACE:
POWER REQUIREMENTS:
COOLING REQUIREMENTS:
Software Specifications
Host System Requirements
Click here for information regarding previous releases of DM3 IPLink software.
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