Recursos VoIP - Enlaces

Fuente: Cisco Systems
Formato: PDF

Increasingly, governments achieve their goals for cost reduction, continuity of services, and effectiveness by transitioning to an IP Communications solution from Cisco Systems. The Cisco Transforming Communications Solutions for Government are a set of IP Communications products and services that help governments and their systems integrators reduce costs, provide government services continuity, and improve effectiveness. The solutions interoperate with existing voice systems, enabling a smooth, cost-effective migration.

Fuente: Cisco Systems
Formato: PDF

This paper provides a list of the TCP and UDP ports that Cisco Unified CallManager 5.0 uses for intracluster connections and for communications with external applications or devices. It provides important information for the configuration of firewalls, Access Control Lists (ACLs), and Quality of Service (QoS) on a network when an IP Communications solution is implemented. Cisco has not verified all possible configuration scenarios for these ports.

Fuente: ShoreTel
Formato: PDF

Users investigating voice over IP (VoIP) architectures, especially when comparing Shoreline3, the distributed IP voice architecture of Shoreline Communications, Inc., to the Cisco Systems, Inc. AVVID (Architecture for Voice, Video, and Integrated Data) will find that complexity emerges as the single greatest differentiator between the two IP Telephony approaches. This white paper provide intellectual and pragmatic analysis on the relative complexity and simplicity of the VoIP architectures and the implications Shoreline3 and AVVID hold for purchasing, implementing, managing and maintaining VoIP networks.

Fuente: Expand Networks
Formato: PDF

Enterprises have traditionally maintained separate networks for their voice and data traffic. Driven by new voice over IP (VoIP) technologies and the need to reduce network costs, many enterprises are designing new converged networks capable of handling both voice and data. The key challenge is to reconcile the performance requirements of voice with the unpredictable nature of data on a single network. This white paper analyzes VoIP performance and bandwidth requirements and shows how Expand Networks ACCELERATORs help to deliver the required performance while reducing WAN costs in converged networks.

Fuente: Avaya
Formato: PDF

Collaboration solutions from Avaya can produce the strategic competitive advantage for enterprises desiring to improve the effectiveness of their processes. With a wide array of collaborative building blocks that can be assembled into comprehensive solutions, Avaya has made it easy for IT organizations to deliver increased productivity to their users, acceleration of decision-making and process flow, and strong Return on Investment with short payback periods. This paper will explore this concept, the technologies & solutions made available by Avaya, a leader in this field, and will illustrate examples of how companies are benefiting from their implementation.

Fuente: Cisco Systems
Formato: PDF


IP communications-comprising telephony service, voice mail, unified messaging, and contact center services all running over an IP data network-is helping companies become more flexible, productive, and profitable in tangible ways. This issue of Packet highlights customers in a multitude of industries that are realizing significant benefits from using the IP communications technologies, products, and solutions available today. Among the other topics covered in this issue are the power over Ethernet standard, high-end routing, MPLS, the Cisco Branch of the Future for financial services, and service-driven metro networks.

Fuente: Frost & Sullivan
Formato: PDF

Unified Collaboration for the real-time enterprise and rapid advancements in telephony are transforming the way organizations do business today. Globalization and an ever-increasing need to drive productivity are steering dramatic changes in distributed enterprises' collaboration and communication needs. There is no mistaking the shift in end user focus from thriving on disconnected collaboration to the need for integrated solutions. Conferencing technologies have emerged to offer knowledge workers with these new expectations and experiences. Conferencing is key among the many collaboration technologies that are shaping the way enterprises communicate. Today enterprises are enhancing productivity and saving thousands of dollars annually by implementing audio, web and video conferencing technologies as core collaboration tools.

Fuente: Avaya
Formato: PDF

Multi-Protocol Label Switching (MPLS) has often been presented as a technology that will help service providers deliver better performance and availability, including specific benefits for demanding applications such as voice and video. Many service providers have implemented MPLS technology in their core networks. Now, with MPLS backbones in place, these carriers are offering MPLS-based services to enterprise customers in support of Voice over IP (VoIP) and video applications. The carriers are also aggressively advertising the benefits of MPLS, claiming large improvements in performance and availability when compared with using the public Internet. The results presented in this paper show that the availability and call quality of VoIP over MPLS is comparable to that of VoIP over the public Internet.

Fuente: ShoreTel
Formato: PDF

The goal of Computerworld's March 2005 online survey was to better understand the challenges enterprises face with their telephone systems, and how IP telephony may address those issues. The results clearly show that IP telephony is now a reality in the enterprise, and the primary management challenges facing organizations are incompatible systems and the costs of associated moves, adds, and changes. Whether you are in the process of implementing an IP telephony solution or are only beginning your research, this survey provides essential, real-world feedback to assist your efforts. Download this Shoretel-sponsored white paper to find out how your peers are handling their IP telephony solutions and what you need to consider for your organization's IPT deployment.

Fuente: Cisco Systems
Formato: PDF

This paper introduces the Session Initiation Protocol (SIP). SIP is an alternative protocol developed by the Internet Engineering Task Force (IETF) for multimedia conferencing over IP. SIP features are compliant with IETF RFC 2543, SIP: Session Initiation Protocol, published in March 1999. The Cisco SIP functionality enables Cisco access platforms to signal the setup of voice and multimedia calls over IP networks.

Fuente: Cisco Systems
Formato: PDF

Converged IP networks allow U.S. state and local governments to use existing IP network investments to improve citizen safety, increase service effectiveness, foster educational excellence, and boost economic development. Cisco IP Communications, Cisco Integrated Security, and Cisco Wireless Networking Solutions enable state and local governments to conduct business more efficiently and effectively. This white paper is intended for IT staff in state and local governments. It summarizes the business challenges that governments face and describes Cisco solutions that state and local governments are using today to successfully to meet those challenges. The solution descriptions focus on proven ways that Cisco IP Communications, integrated security, and wireless networking solutions help improve public safety, service effectiveness, educational excellence, and economic development.

Fuente: Network Equipment Technologies
Formato: PDF

VoIP offers an exciting evolution for government voice networks. Numerous benefits can be realized by the deployment of this new technology. Many similarities between commercial carrier networks and government networks exist. There are, however, some special considerations that government agencies must consider when deploying VoIP. Bandwidth efficiencies, secure voice, QoS, configuration and monitoring tools as well as a compact solution are some of the key features required in government networks. The key is choosing the right equipment that can address all of these requirements, and not just a limited subset. Silence suppression, framepacking, secure call relay, jitter buffers, QoS, and routing support significantly enhance a basic VoIP offering for government network applications.

Fuente: Convedia
Formato: PDF

SIP is widely deployed today for VoIP network signaling and is enjoying great success. However, the use of SIP isn't limited to signaling. SIP has also been applied to the control of VoIP media servers, a function more traditionally associated with device control protocols such as MGCP or MEGACO. This paper explores the kinds of media processing control that can be accomplished using SIP, the different control mechanisms that are available, suitable applications of each mechanism, and relevant standards.

Fuente: 3Com
Formato: PDF

Converged networking is an emerging technology thrust that integrates voice, video, and data traffic on a single network. The market drivers for converged networks are cost reduction, support for sophisticated, highly integrated applications, and the provision of greater network flexibility and functionality.

Fuente: Avaya
Formato: PDF

The goal of this paper is to offer a technology overview of the converged networks. This paper discusses the enterprise IT infrastructure evolution trend, key components and services of the converged networks, and applications that are supported by the converged networks including IP telephony, multimedia- contact center, and unified communications. This paper focuses on technology aspects of the converged networks while the other focuses on business value of the converged networks.