Home

PriceZombie

Login
  • VoIP and Unified Communications: Internet Telephony and the Future Voice Network
  • Amazon

    From $43.73 (New)

  • Learn More
  • Change Region
  • Full Website

Copyright © 2016 PriceZombie, LLC.

Buy from Amazon $57.88$19.99 $48.75 $37.50 $26.25 $15.00 May Aug Nov Feb May Aug Nov Feb May 2014 2015 2016 $56.48, Feb 12 - Feb 27$55.91, Feb 28 - Apr 27$57.88, Apr 28 - May 16$57.88, Apr 28 - May 16$33.45, May 3 - May 18$32.98, May 3 - May 6$57.88, Apr 28 - May 16$33.45, May 3 - May 18$32.94, May 6 - May 13$57.29, May 17 - Jun 12$33.45, May 3 - May 18$32.85, May 17 8:40 pm$57.29, May 17 - Jun 12$32.85, May 19 - May 21$28.00, May 19 - May 21$57.29, May 17 - Jun 12$32.84, May 21 - May 26$27.92, May 21 - May 26$57.29, May 17 - Jun 12$32.93, May 28 - May 29$28.00, May 28 - May 29$57.29, May 17 - Jun 12$32.92, May 29 - May 30$27.98, May 30 - Jun 2$57.29, May 17 - Jun 12$32.91, May 31 - Jun 2$27.98, May 30 - Jun 2$57.29, May 17 - Jun 12$32.90, Jun 2 - Jun 3$27.97, Jun 2 - Jun 4$57.29, May 17 - Jun 12$32.88, Jun 5 - Jun 9$27.96, Jun 5 - Jun 9$57.29, May 17 - Jun 12$32.87, Jun 9 9:10 pm$27.95, Jun 9 9:10 pm$57.29, May 17 - Jun 12$32.86, Jun 10 - Jun 13$27.94, Jun 10 - Jun 13$56.71, Jun 13 - Jul 29$32.86, Jun 10 - Jun 13$27.94, Jun 10 - Jun 13$56.71, Jun 13 - Jul 29$32.85, Jun 14 - Jun 15$27.93, Jun 14 - Jun 15$56.71, Jun 13 - Jul 29$32.84, Jun 16 - Jun 18$27.92, Jun 16 - Jun 18$56.71, Jun 13 - Jul 29$32.82, Jun 19 - Jun 20$27.91, Jun 18 - Jun 20$56.71, Jun 13 - Jul 29$32.81, Jun 21 - Jun 23$27.90, Jun 21 - Jun 23$56.71, Jun 13 - Jul 29$32.80, Jun 24 3:44 am$27.89, Jun 24 3:44 am$56.71, Jun 13 - Jul 29$32.78, Jun 25 - Jun 27$27.87, Jun 25 - Jun 27$56.71, Jun 13 - Jul 29$32.77, Jun 28 - Jun 30$27.86, Jun 28 - Jun 30$56.71, Jun 13 - Jul 29$32.76, Jul 1 3:09 pm$27.85, Jul 1 3:09 pm$56.71, Jun 13 - Jul 29$32.73, Jul 4 - Jul 8$27.83, Jul 4 - Jul 6$56.71, Jun 13 - Jul 29$32.73, Jul 4 - Jul 8$27.82, Jul 8 12:13 am$56.71, Jun 13 - Jul 29$39.94, Jul 10 11:13 am$27.00, Jul 9 - Aug 14$56.71, Jun 13 - Jul 29$39.93, Jul 11 - Jul 14$27.00, Jul 9 - Aug 14$56.71, Jun 13 - Jul 29$39.92, Jul 15 11:33 am$27.00, Jul 9 - Aug 14$56.71, Jun 13 - Jul 29$39.89, Jul 18 - Jul 21$27.00, Jul 9 - Aug 14$56.71, Jun 13 - Jul 29$39.86, Jul 23 - Jul 24$27.00, Jul 9 - Aug 14$56.71, Jun 13 - Jul 29$39.85, Jul 26 - Jul 28$27.00, Jul 9 - Aug 14$56.14, Jul 29 - Aug 7$39.83, Jul 30 - Jul 31$27.00, Jul 9 - Aug 14$56.14, Jul 29 - Aug 7$39.82, Aug 1 - Aug 3$27.00, Jul 9 - Aug 14$56.14, Jul 29 - Aug 7$39.81, Aug 4 - Aug 5$27.00, Jul 9 - Aug 14$56.14, Jul 29 - Aug 7$39.79, Aug 7 3:39 pm$27.00, Jul 9 - Aug 14$55.57, Aug 8 - Aug 17$39.78, Aug 8 - Aug 10$27.00, Jul 9 - Aug 14$55.57, Aug 8 - Aug 17$39.77, Aug 11 6:31 pm$27.00, Jul 9 - Aug 14$55.57, Aug 8 - Aug 17$39.75, Aug 13 4:11 pm$27.00, Jul 9 - Aug 14$55.57, Aug 8 - Aug 17$39.98, Aug 15 - Aug 17$26.99, Aug 15 2:02 pm$55.57, Aug 8 - Aug 17$39.98, Aug 15 - Aug 17$26.94, Aug 17 6:50 pm$55.01, Aug 19 - Aug 25$39.96, Aug 20 4:50 am$26.88, Aug 20 4:50 am$55.01, Aug 19 - Aug 25$39.94, Aug 22 - Aug 23$26.81, Aug 22 5:12 am$55.01, Aug 19 - Aug 25$39.93, Aug 24 5:45 am$26.78, Aug 23 - Aug 24$54.46, Aug 26 - Sep 2$39.92, Aug 26 8:38 am$26.84, Aug 26 8:38 am$54.46, Aug 26 - Sep 2$39.90, Aug 28 12:34 pm$26.83, Aug 27 - Aug 29$54.46, Aug 26 - Sep 2$39.88, Aug 29 - Sep 1$26.83, Aug 27 - Aug 29$54.46, Aug 26 - Sep 2$39.88, Aug 29 - Sep 1$22.86, Sep 1 - Sep 2$53.91, Sep 3 - Sep 10$39.87, Sep 2 - Sep 3$22.83, Sep 3 8:39 am$53.91, Sep 3 - Sep 10$39.85, Sep 4 - Sep 5$21.25, Sep 4 2:01 pm$53.91, Sep 3 - Sep 10$39.84, Sep 9 - Sep 10$26.85, Sep 5 - Sep 9$53.36, Sep 11 - Sep 18$39.83, Sep 11 - Sep 14$27.00, Sep 10 - Nov 24$53.36, Sep 11 - Sep 18$39.82, Sep 16 12:01 am$27.00, Sep 10 - Nov 24$53.36, Sep 11 - Sep 18$39.80, Sep 18 1:48 am$27.00, Sep 10 - Nov 24$52.82, Sep 20 - Sep 25$39.78, Sep 20 3:47 am$27.00, Sep 10 - Nov 24$52.82, Sep 20 - Sep 25$39.76, Sep 23 2:15 pm$27.00, Sep 10 - Nov 24$52.82, Sep 20 - Sep 25$39.74, Sep 25 - Sep 27$27.00, Sep 10 - Nov 24$52.29, Sep 27 - Oct 9$39.74, Sep 25 - Sep 27$27.00, Sep 10 - Nov 24$52.29, Sep 27 - Oct 9$39.73, Sep 29 5:42 pm$27.00, Sep 10 - Nov 24$52.29, Sep 27 - Oct 9$39.72, Oct 1 10:59 pm$27.00, Sep 10 - Nov 24$52.29, Sep 27 - Oct 9$39.71, Oct 3 - Oct 7$27.00, Sep 10 - Nov 24$52.29, Sep 27 - Oct 9$39.69, Oct 9 10:47 am$27.00, Sep 10 - Nov 24$54.03, Oct 11 - Nov 1$39.68, Oct 11 12:50 pm$27.00, Sep 10 - Nov 24$54.03, Oct 11 - Nov 1$39.67, Oct 13 3:48 pm$27.00, Sep 10 - Nov 24$54.03, Oct 11 - Nov 1$39.66, Oct 15 11:53 pm$27.00, Sep 10 - Nov 24$54.03, Oct 11 - Nov 1$39.65, Oct 18 - Oct 20$27.00, Sep 10 - Nov 24$54.03, Oct 11 - Nov 1$39.63, Oct 22 - Oct 27$27.00, Sep 10 - Nov 24$54.03, Oct 11 - Nov 1$39.58, Nov 1 11:16 am$27.00, Sep 10 - Nov 24$52.29, Nov 8 - Nov 13$39.55, Nov 8 7:42 am$27.00, Sep 10 - Nov 24$52.29, Nov 8 - Nov 13$39.53, Nov 13 4:37 pm$27.00, Sep 10 - Nov 24$54.14, Nov 17 - Nov 22$39.52, Nov 17 5:46 pm$27.00, Sep 10 - Nov 24$54.14, Nov 17 - Nov 22$39.51, Nov 20 5:44 am$27.00, Sep 10 - Nov 24$54.14, Nov 17 - Nov 22$39.50, Nov 22 - Nov 24$27.00, Sep 10 - Nov 24$53.34, Nov 24 - Nov 30$47.72, Nov 26 9:24 am$39.49, Nov 26 9:24 am$53.34, Nov 24 - Nov 30$39.48, Nov 28 - Nov 30$27.00, Nov 28 - Dec 10$53.87, Dec 2 - Dec 6$39.47, Dec 2 4:43 am$27.00, Nov 28 - Dec 10$53.87, Dec 2 - Dec 6$39.39, Dec 4 3:24 am$27.00, Nov 28 - Dec 10$53.87, Dec 2 - Dec 6$39.37, Dec 6 - Dec 8$27.00, Nov 28 - Dec 10$54.40, Dec 8 - Dec 14$39.37, Dec 6 - Dec 8$27.00, Nov 28 - Dec 10$54.40, Dec 8 - Dec 14$39.36, Dec 10 1:31 am$27.00, Nov 28 - Dec 10$54.40, Dec 8 - Dec 14$48.54, Dec 12 2:03 am$39.35, Dec 12 2:03 am$54.40, Dec 8 - Dec 14$48.18, Dec 14 1:31 am$39.34, Dec 14 1:31 am$53.90, Dec 16 - Dec 27$48.42, Dec 16 1:41 am$39.33, Dec 16 1:41 am$53.90, Dec 16 - Dec 27$48.12, Dec 18 12:18 am$39.00, Dec 18 12:18 am$53.90, Dec 16 - Dec 27$45.99, Dec 22 - Jan 5$38.50, Dec 22 10:38 am$53.90, Dec 16 - Dec 27$45.99, Dec 22 - Jan 5$38.40, Dec 23 - Dec 25$53.90, Dec 16 - Dec 27$45.99, Dec 22 - Jan 5$38.39, Dec 26 7:39 pm$53.90, Dec 16 - Dec 27$45.99, Dec 22 - Jan 5$38.40, Dec 27 - Dec 30$53.62, Dec 29 - Jan 4$45.99, Dec 22 - Jan 5$38.40, Dec 27 - Dec 30$53.62, Dec 29 - Jan 4$45.99, Dec 22 - Jan 5$34.52, Jan 1 - Jan 12$53.34, Jan 5 - Jan 11$45.99, Dec 22 - Jan 5$34.52, Jan 1 - Jan 12$53.34, Jan 5 - Jan 11$45.98, Jan 6 - Jan 14$34.52, Jan 1 - Jan 12$53.07, Jan 12 - Jan 17$45.98, Jan 6 - Jan 14$38.40, Jan 14 4:53 am$53.07, Jan 12 - Jan 17$45.79, Jan 15 1:48 am$34.52, Jan 15 - Jan 16$53.07, Jan 12 - Jan 17$46.64, Jan 17 5:48 pm$44.85, Jan 17 5:48 pm$52.80, Jan 19 - Jan 23$46.40, Jan 19 - Jan 21$45.68, Jan 19 8:22 am$52.80, Jan 19 - Jan 23$46.40, Jan 19 - Jan 21$45.63, Jan 21 7:24 pm$52.80, Jan 19 - Jan 23$46.16, Jan 23 - Jan 26$45.68, Jan 23 9:56 am$52.53, Jan 25 - Jan 31$46.16, Jan 23 - Jan 26$45.30, Jan 25 1:41 am$52.53, Jan 25 - Jan 31$46.64, Jan 28 1:01 pm$45.50, Jan 28 1:01 pm$52.53, Jan 25 - Jan 31$46.40, Jan 29 - Feb 1$45.80, Jan 29 9:56 am$52.53, Jan 25 - Jan 31$46.40, Jan 29 - Feb 1$45.45, Jan 31 - Feb 1$52.26, Feb 1 - Feb 6$46.16, Feb 2 10:37 pm$45.54, Feb 2 10:37 pm$52.26, Feb 1 - Feb 6$46.64, Feb 4 4:45 pm$45.40, Feb 4 4:45 pm$52.26, Feb 1 - Feb 6$46.88, Feb 6 10:51 am$45.30, Feb 6 10:51 am$53.84, Feb 8 - Feb 23$49.27, Feb 8 6:01 am$45.25, Feb 8 6:01 am$53.84, Feb 8 - Feb 23$49.27, Feb 10 11:36 pm$45.15, Feb 10 11:36 pm$53.84, Feb 8 - Feb 23$47.13, Feb 12 - Feb 17$45.05, Feb 12 6:43 pm$53.84, Feb 8 - Feb 23$47.13, Feb 12 - Feb 17$44.95, Feb 14 - Feb 15$53.84, Feb 8 - Feb 23$47.13, Feb 12 - Feb 17$44.90, Feb 17 12:39 pm$53.84, Feb 8 - Feb 23$47.38, Feb 19 9:33 am$44.80, Feb 19 9:33 am$53.84, Feb 8 - Feb 23$47.13, Feb 21 - Feb 23$44.75, Feb 21 7:22 am$53.84, Feb 8 - Feb 23$47.13, Feb 21 - Feb 23$43.00, Feb 23 5:46 am$54.37, Feb 25 - Feb 28$47.38, Feb 25 3:23 am$42.95, Feb 25 3:23 am$54.37, Feb 25 - Feb 28$47.13, Feb 27 - Mar 3$42.90, Feb 27 - Feb 28$54.91, Mar 3 - Mar 6$47.13, Feb 27 - Mar 3$45.95, Mar 3 10:27 am$54.91, Mar 3 - Mar 6$46.65, Mar 5 10:43 am$45.91, Mar 5 10:43 am$54.36, Mar 8 - Apr 5$46.17, Mar 8 11:37 am$45.85, Mar 8 11:37 am$54.36, Mar 8 - Apr 5$46.41, Mar 10 6:29 pm$45.79, Mar 10 6:29 pm$54.36, Mar 8 - Apr 5$45.75, Mar 13 1:22 am$34.52, Mar 13 1:22 am$54.36, Mar 8 - Apr 5$45.44, Mar 15 8:18 am$34.52, Mar 15 - Mar 16$54.36, Mar 8 - Apr 5$34.52, Mar 15 - Mar 16$34.52, Mar 16 - Apr 5$54.36, Mar 8 - Apr 5$45.99, Mar 19 - Apr 22$34.52, Mar 16 - Apr 5$53.81, Apr 8 - Apr 11$45.99, Mar 19 - Apr 22$45.92, Apr 8 8:43 am$53.81, Apr 8 - Apr 11$45.99, Mar 19 - Apr 22$45.20, Apr 11 9:12 am$54.36, Apr 14 2:48 am$45.99, Mar 19 - Apr 22$34.52, Apr 14 - Apr 16$53.81, Apr 16 - Apr 24$45.99, Mar 19 - Apr 22$34.52, Apr 14 - Apr 16$53.81, Apr 16 - Apr 24$46.16, Apr 19 9:22 am$45.99, Mar 19 - Apr 22$53.81, Apr 16 - Apr 24$45.99, Mar 19 - Apr 22$45.93, Apr 22 2:16 am$53.81, Apr 16 - Apr 24$45.52, Apr 24 11:00 pm$34.52, Apr 24 11:00 pm$53.27, Apr 27 - Apr 30$45.07, Apr 27 - Apr 30$34.52, Apr 27 - Apr 30$52.73, May 3 - May 6$48.73, May 3 9:41 am$44.61, May 3 - May 6$52.73, May 3 - May 6$44.61, May 3 - May 6$34.52, May 6 4:09 am$52.20, May 10 - May 13$47.40, May 10 9:28 am$44.16, May 10 - May 13$52.20, May 10 - May 13$44.16, May 10 - May 13$34.52, May 13 - Jun 3$51.67, May 17 - May 21$43.71, May 17 - May 21$34.52, May 13 - Jun 3$51.15, May 25 - Jun 3$43.27, May 25 - Jun 3$34.52, May 13 - Jun 3$50.64, Jun 8 - Jun 12$46.05, Jun 8 - Jul 1$39.94, Jun 8 5:28 am$50.64, Jun 8 - Jun 12$46.05, Jun 8 - Jul 1$39.79, Jun 12 4:03 am$50.13, Jun 15 - Jun 19$46.05, Jun 8 - Jul 1$39.20, Jun 15 - Jun 19$49.63, Jun 23 - Jun 27$46.05, Jun 8 - Jul 1$39.72, Jun 23 11:51 am$49.63, Jun 23 - Jun 27$46.05, Jun 8 - Jul 1$39.20, Jun 27 7:03 am$49.13, Jul 1 8:24 am$46.05, Jun 8 - Jul 1$36.77, Jul 1 8:24 am$48.63, Jul 5 - Jul 11$46.08, Jul 5 3:02 pm$39.20, Jul 5 3:02 pm$48.63, Jul 5 - Jul 11$42.95, Jul 11 - Jul 26$41.00, Jul 11 6:16 pm$48.14, Jul 15 - Jul 18$42.95, Jul 11 - Jul 26$39.20, Jul 15 - Jul 29$47.66, Jul 22 - Jul 26$42.95, Jul 11 - Jul 26$39.20, Jul 15 - Jul 29$47.18, Jul 29 5:00 pm$39.20, Jul 15 - Jul 29$37.95, Jul 29 - Aug 20$46.02, Aug 2 - Sep 20$38.97, Aug 2 7:26 am$37.95, Jul 29 - Aug 20$46.02, Aug 2 - Sep 20$39.20, Aug 5 - Aug 20$37.95, Jul 29 - Aug 20$46.02, Aug 2 - Sep 20$37.18, Aug 24 4:49 pm$37.15, Aug 24 - Sep 24$46.02, Aug 2 - Sep 20$37.15, Aug 24 - Sep 24$36.92, Aug 28 11:43 am$46.02, Aug 2 - Sep 20$40.51, Sep 1 3:54 am$37.15, Aug 24 - Sep 24$46.02, Aug 2 - Sep 20$37.15, Aug 24 - Sep 24$34.68, Sep 5 12:48 am$46.02, Aug 2 - Sep 20$37.15, Aug 24 - Sep 24$34.28, Sep 8 10:46 pm$46.02, Aug 2 - Sep 20$37.15, Aug 24 - Sep 24$28.60, Sep 12 7:55 pm$46.02, Aug 2 - Sep 20$37.15, Aug 24 - Sep 24$26.75, Sep 16 4:54 pm$46.02, Aug 2 - Sep 20$37.15, Aug 24 - Sep 24$29.50, Sep 20 1:40 pm$46.51, Sep 24 - Sep 28$37.15, Aug 24 - Sep 24$28.95, Sep 24 11:55 am$46.51, Sep 24 - Sep 28$41.15, Sep 28 8:54 am$28.38, Sep 28 8:54 am$47.51, Oct 2 - Nov 15$37.15, Oct 2 10:04 am$27.82, Oct 2 10:04 am$47.51, Oct 2 - Nov 15$29.95, Oct 6 - Oct 10$25.46, Oct 6 - Oct 10$47.51, Oct 2 - Nov 15$25.95, Oct 14 3:33 pm$19.99, Oct 14 - Nov 29$47.51, Oct 2 - Nov 15$29.95, Oct 18 11:44 am$19.99, Oct 14 - Nov 29$47.51, Oct 2 - Nov 15$25.95, Oct 22 9:23 am$19.99, Oct 14 - Nov 29$47.51, Oct 2 - Nov 15$43.51, Oct 26 - Nov 15$19.99, Oct 14 - Nov 29$48.55, Nov 19 - Nov 24$44.55, Nov 19 - Nov 24$19.99, Oct 14 - Nov 29$49.03, Nov 29 1:20 am$45.03, Nov 29 1:20 am$19.99, Oct 14 - Nov 29$49.52, Dec 3 - Dec 13$45.52, Dec 3 - Dec 13$35.22, Dec 3 10:53 pm$49.52, Dec 3 - Dec 13$45.52, Dec 3 - Dec 13$35.62, Dec 8 - Dec 13$50.01, Dec 19 - Dec 23$46.01, Dec 19 - Dec 23$36.01, Dec 19 - Dec 23$49.75, Dec 28 11:37 pm$45.75, Dec 28 11:37 pm$35.80, Dec 28 11:37 pm$47.76, Jan 2 - Jan 7$43.76, Jan 2 - Jan 7$38.21, Jan 2 - Jan 7$47.00, Jan 12 - Feb 4$43.00, Jan 12 - Jan 22$37.60, Jan 12 2:33 pm$47.00, Jan 12 - Feb 4$45.56, Jan 17 1:41 pm$43.00, Jan 12 - Jan 22$47.00, Jan 12 - Feb 4$44.41, Jan 22 2:16 pm$43.00, Jan 12 - Jan 22$47.00, Jan 12 - Feb 4$45.09, Jan 27 4:42 pm$42.92, Jan 27 4:42 pm$47.00, Jan 12 - Feb 4$44.67, Jan 30 5:41 am$43.00, Jan 30 - Feb 4$47.00, Jan 12 - Feb 4$45.01, Feb 4 7:55 am$43.00, Jan 30 - Feb 4$52.51, Feb 9 9:47 am$46.41, Feb 9 9:47 am$46.40, Feb 9 9:47 am$53.50, Feb 14 - Feb 25$46.40, Feb 14 5:10 pm$45.34, Feb 14 5:10 pm$53.50, Feb 14 - Feb 25$45.80, Feb 20 1:16 am$44.38, Feb 20 1:16 am$53.50, Feb 14 - Feb 25$45.83, Feb 25 2:04 pm$44.26, Feb 25 2:04 pm$47.01, Mar 6 - Mar 18$45.53, Mar 6 6:02 pm$41.83, Mar 6 6:02 pm$47.01, Mar 6 - Mar 18$45.77, Mar 18 4:43 am$42.58, Mar 18 4:43 am$44.13, Mar 29 4:20 pm$43.73, Mar 29 4:20 pm$39.72, Mar 29 4:20 pm 45,5731,343,074 1,562,500 1,171,875 781,250 390,625 Oct Dec Feb Apr Jun Aug Oct Dec Feb Apr 2015 2016

Price Details

New

Last Seen $43.73 Mar 29, '16
Highest $57.88 Apr 28, '14
Lowest $43.73 Mar 29, '16
Average $47.01 (30d avg)
$49.00 (90d avg)
$48.69 (180d avg)
$49.09 (365d avg)
$52.21 (Lifetime average)
Added Feb 12, 2014

3rd Party New

Last Seen $39.72 Mar 29, '16
Highest $49.27 Feb 10, '15
Lowest $25.95 Oct 22, '15
Average $42.21 (30d avg)
$43.53 (90d avg)
$42.17 (180d avg)
$40.89 (365d avg)
$40.00 (Lifetime average)
Added Feb 12, 2014

3rd Party Used

Last Seen $44.13 Mar 29, '16
Highest $48.54 Dec 12, '14
Lowest $19.99 Oct 14, '15
Average $45.65 (30d avg)
$44.22 (90d avg)
$34.77 (180d avg)
$37.39 (365d avg)
$35.52 (Lifetime average)
Added Feb 12, 2014

Sales Rank

30 day average: 1,008,932
90 day average: 753,820

Product Description

Translates technical jargon into practical business communications solutions This book takes readers from traditional voice, fax, video, and data services delivered via separate platforms to a single, unified platform delivering all of these services seamlessly via the Internet. With its clear, jargon-free explanations, the author enables all readers to better understand and assess the growing number of voice over Internet protocol (VoIP) and unified communications (UC) products and services that are available for businesses. VoIP and Unified Communications is based on the author's careful review and synthesis of more than 7,000 pages of published standards as well as a broad range of datasheets, websites, white papers, and webinars. It begins with an introduction to IP technology and then covers such topics as: Packet transmission and switching VoIP signaling and call processing How VoIP and UC are defining the future Interconnections with global services Network management for VoIP and UC This book features a complete chapter dedicated to cost analyses and payback calculations, enabling readers to accurately determine the short- and long-term financial impact of migrating to various VoIP and UC products and services. There's also a chapter detailing major IP systems hardware and software. Throughout the book, diagrams illustrate how various VoIP and UC components and systems work. In addition, the author highlights potential problems and threats to UC services, steering readers away from common pitfalls. Concise and to the point, this text enables readers--from novices to experienced engineers and technical managers--to understand how VoIP and UC really work so that everyone can confidently deal with network engineers, data center gurus, and top management.

Back to store list

Login