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Voice Over WLANS
By: Michael F. FinneranImprint: Newnes
Format: Adobe Encrypted (DRM)
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Wireless local area networks (WLANs) have traditionally been used to transport only data, but are now being used to carry voice traffic as well as provided new combined voice and data services. Voice over WLANs also offers more flexibility than wired networks (changes to a WLAN don't require changes to installed wiring) and greater capacity than wired networks. This book provides a solid overview of voice over WLANs/VoIP (voice over internet protocol) technology, including voice coding, packet loss, delay and "jitter," and "echo" control. It shows how to combine both WLAN and VoIP technology to create effective voice over WLAN systems.
* Gives complete details on integrating voice and data services on WLANs, including wide area networks
* Explores quality of service (QoS) and security issues
* Step-by-step descriptions of how to plan and implement voice over WLAN networks
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| Title of Technology eBook: Voice Over WLANS | |
| Release Date: 11-26-2007 | |
| Publisher: Newnes |
This eBook download is available in the following formats:
| Parent title | Voice Over WLANS |
|---|---|
| Encrypted (DRM) | Yes |
| SKU | 9780080556437 |
| File size | 4340 |
| Security | n/a |
| Printing | Not allowed |
| Copying | Not allowed |
| Read aloud | No Sys requirements Download reader |
| Devices | Samsung Tablet, Apple Ipad & Iphone, Barnes & Noble Nook, Kobo eReader, Aluratek Libre, Iliad, Nokia, Blackberry, Hanlin |
| Note | Excellent navigation features are available via Adobe such as bookmarks and a quick access table of contents. Text search is easily accessible. An Adobe DRM-protected file is different than a pdf file in that it uses Adobe DRM (Digital Rights Management) technology, which authors and publishers use to protect their content from illegal online distribution and to set certain privileges such as restrictions on copying and printing. |
Voice Over WLANS
Chapter One
The Convergence of Wireless LANs and VoIP
The growing popularity of both wireless LANs (WLANs) based on the IEEE 802.11 standards and voice solutions based on the Internet Protocol (i.e., VoIP) has made their convergence almost inevitable. Wireless LANs are becoming commonplace in enterprise organizations, home networks, and with broadband Internet services that use Wi-Fi access. At the same time, enterprise customers are now managing the transition of their traditional voice telephone systems to implementations that use IP, Ethernet, and LAN switching technologies. All the while, consumers are migrating from the traditional circuit switched telephones services offered by the traditional telephone companies to broadband VoIP services from cable TV companies and VoIP carriers like Vonage.
Both IP telephony and wireless LANs are relatively new technologies and each brings with it a number of issues regarding service quality, security, and reliability. IP was initially designed to support the requirements of data rather than voice traffic, and users have high expectations for sound quality and reliability when it comes to telephone service. Wireless LANs were also designed for data applications, and sending radio waves through free space in the face of interference and physical obstructions is still a challenging endeavor. So while there are cost and convenience benefits to be gained from carrying voice over a wireless LAN infrastructure, a successful outcome will require good design and careful planning.
The pur
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