by clicking on the page. A slider will appear, allowing you to adjust your zoom level. Return to the original size by clicking on the page again.
the page around when zoomed in by dragging it.
the zoom using the slider on the top right.
by clicking on the zoomed-in page.
by entering text in the search field and click on "In This Issue" or "All Issues" to search the current issue or the archive of back issues respectively.
by clicking on thumbnails to select pages, and then press the print button.
this publication and page.
displays a table of sections with thumbnails and descriptions.
displays thumbnails of every page in the issue. Click on a page to jump.
allows you to browse through every available issue.
FCW : November 30, 2012
The hurdles The biggest obstacles are cost, security concerns and infrastructure. Brazy cited acquisition costs among the top issues for government buyers but noted that prices for some video- conferencing components have been dropping. A codec, for example, can now be cheaper than a camera in some lower-end room-based systems. "The codec cost will go down until it is a chip on the motherboard, the same way audio did several years ago," Brazy said. Agencies do not necessarily need to invest in new systems to acquire vid- eoconferencing capabilities. Streaming and Web conferencing software pro- vides videoconferencing capabilities for desktop PCs and mobile devices. Adobe Connect, Cisco WebEx and IBM Sametime are active in this market segment. For example, Murtha said DCO s Web conferencing and chat services weren t speci cally built for videocon- ferencing, but customers are pushing the system in that direction. DCO might create a special-purpose enclave for very large broadcast needs, which would facilitate desktop videoconfer- encing, he said. Similarly, DISA s Global Content Delivery Service (GCDS) makes use of existing infrastructure to offer what it calls a simplified high-definition desktop streaming solution for ad hoc events. The service is available at no cost, according to DISA. Alan Lewis, a vice director for enter- prise services at DISA, said GCDS was rst planned as a streaming service for large events, but has now been broad- ened to accommodate user participa- tion in meetings or conferences of any desired size. "With cameras already in place today at most commands, it is easy for a com- mander to brief their troops or hold meetings between commands, thus saving time and money by lessening the costs and time associated with travel," Lewis said. Consumer-oriented services such as Skype and Apple s FaceTime also con- tribute to low- or no-cost videoconfer- encing. Bradley said Skype gets a lot of use at Brookhaven. "It was found to be of great bene t for collaboration with scientists who previously had to pay international telephone tolls to participate in tele- conferences," he said. Security considerations, however, are keeping other government agen- cies away from consumer conferenc- ing tools. "We haven t really seen any inter- est in the consumer-grade solutions... because there is a security aspect," Brazy said. "A lot of the government agencies interface with [the Depart- ment of] Homeland Security in some form or another." Furthermore, although videoconfer- encing has helped reduce travel costs, it has also increased demands on agen- cy infrastructures. Agencies "are nd- ing they have to ramp up bandwidth to support videoconferences," Brazy said. "Many of them don t have the band- width in place to support that level of IP-based conferencing." He added that agencies might also need to boost their internal knowledge base regarding videoconferencing so that IT departments can support users and the technology. ■ November 30, 2012 FCW.COM 29 Next steps: New standards, new capabilities As videoconferencing evolves, look for agencies to transition away from aging systems that are based on ISDN and the H.320 protocol. Siafa Sherman, director of technology at Avaya Government Solutions, said manufacturers are phasing out many of the older ISDN-based systems. Consequently, agencies will need to adopt replacement products at some point. "They will be looking at making the investment for newer technologies that are easier to manage and less expensive to support, " Sherman said. "We will start to see a migration...to take advantage of the newer capabilities that the newer standards bring to bear. " Two standards in particular stand out: • H.323 --- An audiovisual communication protocol that s behind the current generation of room-based, desktop and mobile videoconferencing systems. • Session Initiation Protocol --- A protocol that establishes video calls over IP-based networks. SIP is also associated with uni ed communications, which seeks to pull together videoconferencing, telephony and chat, among other technologies. Internet Gatekeeper Device H.323 Gateway H.323 Gateway Device Internet SIP Proxy Server Device Access Point Access Point Device
November 15, 2012