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Internet Protocol (IP)-Telephony Clearinghouses
White Papers This tutorial describes how Internet protocol (IP)-telephony clearinghouses operate, from a technical, operational, and business perspective. Clearinghouses provide Internet service providers (ISPs), Internet telephony service providers (ITSPs...
[January 1, 1970, 0:59]
The Session Initiation Protocol: Providing Advanced Telephony Services Across The Internet
White Papers Our discussion of some of SIP's strengths—its simplicity, scalability, extensibility, and modularity—also analyzes why these are critical components for an IP telephony signaling protocol. Supporting the widespread use of Internet telephony...
[January 1, 1970, 0:59]
An Analysis Of The Skype Peer-to-Peer Internet Telephony Protocol
White Papers Skype is a peer-to-peer VoIP client developed by KaZaa. Skype claims that it can work almost seamlessly across NATs and firewalls and has better voice quality than the MSN and Yahoo IM applications. It encrypts calls end-to-end, and stores user...
[January 1, 1970, 0:59]
Internet Telephony 'is Not Telecommunications'
News VoIP "should be allowed to grow and shouldn't be held captive to the old regulatory regime that current telephony is saddled with," added an AT&T spokeswoman. The ruling is being closely watched by industry executives and consumers nationwide as so...
[October 17, 2003, 16:10]
DSQ Software - Voice Over Internet Protocol
White Papers The paper also talks about VoIP applications including Internet telephony, VOIP based call-centers, and trunking applications. This paper discusses various aspect of VoIP, including the challenges, application areas, and the standards.
[January 1, 1970, 0:59]
Using Satellites For Transmitting Voice Over Internet Protocol (VoIP)
White Papers It may also be the logical successor to telephony in general, facilitating the intermingling of voice conversations with data, imagery, email and all other forms of managed “packetized” traffic. This white paper introduces the current technology...
[January 1, 1970, 0:59]
Norwegian Hospital Is One Of The World's First To Run All Communications Over Internet Protocol (IP), Using Cisco Technology
White Papers The company deployed high-speed, fully redundant IP infrastructure based on Cisco Catalyst 6500 Series Switches and Cisco Catalyst 4500 Series Switches, secure wireless coverage across 11 buildings for mobile clinical staff via Cisco Aironet 1200...
[January 1, 1970, 0:59]
Internet Telephony Rides Back Into Fashion
News Beyond latching onto the digital entertainment wave with more offerings for multimedia streaming and wireless console gaming, Tsao will venture into an area where many before him have seen limited success -- Internet telephony.
[April 22, 2004, 16:00]
'Few Firms' Ready To Embrace Internet Telephony
News IP telephony will overhaul traditional PBX-based telephone systems within five years, but few companies are moving to voice over Internet Protocol (VoIP) today, experts said on Thursday. Ian Keene, Gartner's vice-president and chief analyst...
[October 8, 2004, 10:45]
Lindows Ventures Into Internet Telephony
News Lindows.com on Tuesday released a new version of its operating system meshed with Internet telephony technology created by company chief executive Michael Robertson. Internet calling, or voice over Internet Protocol, is growing in popularity.
[December 17, 2003, 11:05]
CeBIT 98: Internet Telephony Gets The Nod From Deutsche Telekom
News A spokesman for DT said the company was pleasantly surprised with user perceptions of quality and availability, two aspects of Internet telephony that have so far prevented widespread commercial use. In preparation for CeBIT '98, DT said it would...
[March 18, 1998, 16:01]
Starting With VoIP
White Papers However, since most telephony today is supported on PSTN (Public Switched Telephone Network) based on circuit-switched architecture most VoIP based telephony uses a combination of the Internet and PSTN.
[January 1, 1970, 0:59]
Internet Telephony: Architecture And Protocols An IETF Perspective
White Papers We describe the upper-layer protocol components that are specific to Internet telephony services: the Real-Time Transport Protocol (RTP) to carry voice and video data, and the Session Initiation Protocol (SIP) for signaling.
[January 1, 1970, 0:59]
Voice Over IP - The SIP Way
White Papers IETF (Internet Engineering Task Force) and other working groups have put lot of efforts to come up with a protocol, which could lay standards for Internet Telephony. That milestone is the merging of Internet based distributed technologies with...
[January 1, 1970, 0:59]
VoIP: What You Need To Know
News As the popularity of Internet telephony surges, and lawmakers put more pressure on VoIP providers to fully support 911 services, many consumers are asking what exactly they need to know about the technology.
[August 15, 2005, 15:20]
Making The Call For VoIP Standards
News When used for telephony it most often uses the same underlying streaming protocol, RTP, as H.323. Strictly speaking, it isn't a telephony protocol; instead, it does the call set-up, error handling and inter-process signalling that goes along with...
[July 31, 2002, 8:03]
Asterisk VoIP Flaw Patched
News If exploited, it could lead to denial-of-service attacks on businesses that use the Asterisk PBX for their IP telephony services. Asterisk is open source, freely available software that offers organisations all the features of a typical telephony PBX.
[July 18, 2006, 17:45]
Moving Your Customers From TDM To IP
White Papers As an enterprise business, the user is approaching an important crossroads in one's telephony needs. As an enterprise business, one is approaching an important crossroads in the telephony needs. The traditional telecommunications system is nearing...
[January 1, 1970, 0:59]
Vint Cerf Hears VoIP Calling
News Indeed, Cerf, who created the TCP/IP protocol that now defines online communication spends a good part of his time focused on VoIP, the cheaper form of telephony, expecting it to permanently alter the telephone industry.
[September 11, 2003, 10:00]
Router And VoIP Bugs Zapped By Cisco
News Flaws in Cisco software for routers and Internet telephony could be a conduit for attacks on enterprise networks, the company has warned. Two flaws exist in the software: one could allow an attacker to paralyse a Cisco IP telephony installation...
[January 19, 2006, 11:40]
