New PDF release: Voice over Data Networks for Managers

By Lawrence Harte

ISBN-10: 097280532X

ISBN-13: 9780972805322

Voice over information Networks for Managers explains how and why businesses changing their mobile platforms to take advantage of voice over facts structures. This publication explains how your organization can lessen conversation expenses forty% to 70%, preserve utilizing your latest phone platforms, and raise profit from new communique functions.

The writer labored with greater than a hundred businesses to find the severe steps businesses may still take and hazards to prevent while transitioning from conventional cellphone structures to voice over info networks. phone platforms are necessary to survival of businesses and preliminary trying out, transition concepts, and anticipation of destiny details integration are very important components of the conversion procedure.

Most very important, this ebook explains why one corporation can't supply the entire suggestions and that it is very important have an independent figuring out of the current suggestions, key hazards they might current, and the way your choice will be sure your skill to satisfy your destiny verbal exchange wishes.

Learn the fundamentals of ways web cell provider works. This comprises voice digitization, info compression, and the way your offerings of those will impacts your voice caliber. mentioned are the fundamental techniques of sending packets throughout the net and the way the lack of packets (and a few do wander off) don't often impression the voice caliber. you are going to find out about gateways that convert facts to cell indications and web cell merchant (ITSP) businesses that deal with the connections among you and conventional phones through the use of gatekeepers.

An evaluate of autonomous mobilephone structures together with key mobilephone platforms (KTS), inner most department alternate (PBX) and computing device phone integration (CTI) lets you comprehend what's going to be replaced. An creation of knowledge communique networks explains the basics of information networks together with neighborhood zone networks (LAN) and the net. you'll research what needs to take place to mix voice and knowledge communique structures in addition to the main innovations and influence those offerings could have in your facts communique platforms.

Discover the diversities among IP Centrex and net PBX (iPBX) structures and which of those suggestions could be the best option in your corporation. you are going to find out about the various kinds of net phones (IP Telephones). those cell kinds variety from software program basically (called tender telephones) to complete functionality web phones (called not easy Phones). know about name servers and the complicated name keep an eye on positive factors they could offer.

Discussed are the common forms of info connections are utilized in corporation communique structures akin to leased line, body relay, DSL, cable modems, and the way they could have to swap (if in any respect) to allow voice over info provider. additionally, you will know about the common demanding situations resembling firewalls and proxy servers and recommendations that information communications managers might want to tackle whilst enforcing those adjustments.

How to attach your info community to public mobilephone networks. you'll approximately ideas together with utilizing gateways or net cellphone merchant (ITSP) to supply connections to and out of your facts community to the general public mobilephone community. discover why the kinds of conversion you opt will dramatically impact the reliability and caliber of your carrier.

Understand the foremost caliber of carrier (QoS), protection, and reliability concerns and the way to make sure you get toll caliber voice whilst utilizing info networks. defined are the variations in billing and operations. observe many of the complicated positive factors and companies reminiscent of unified messaging and clever name routing that aren't attainable with most standard phone platforms.

There are strength demanding situations and ideas with voice over information community carrier. you'll find out how businesses have triumph over a lot of those demanding situations and now and again, became those demanding situations into merits.

Learn the language and conventional utilized by the together with H.323, consultation Initiated Protocol (SIP), Media Gateway C

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Extra info for Voice over Data Networks for Managers

Sample text

When calls are received from the PSTN, the call processing system looks in the database to find the associated IP telephone address (data address) and this address is used to alert the IP telephone of an incoming call. When calls are originated from the IP telephone, the dialed teleCopyright ©, 2003, ALTHOS, Inc -35- Introduction To IP Telephony Figure 22, Internet Protocol Private Branch Exchange (iPBX) Operation phone number is passed to the call processing system (call server). This system determines if the call is routed within the data network or if the voice gateway must be used to connect the call to the PSTN.

The physical access to the lines between the gateways and ISPs and ISPs to the Internet usually requires direction connection to telephone wires or data lines (such as coaxial cable). This example shows that once the Internet telephone call enters into the Internet, packets are usually routed through dif- Figure 31, Physical Access to Internet Telephone Calls Copyright ©, 2003, ALTHOS, Inc -53- Introduction To IP Telephony ferent paths. The only points that route all of the packets are the entry and exit points for the Internet.

Proxy servers act on behalf of the telephone device to redirect call requests to other addresses. Locations. A proxy server can simply redirect the request to the latest address where the designated recipient has been registered or it may process the call request to send out multiple call request messages (called a forking proxy). A forking proxy forwards a communication session request to more than one device on behalf of the communication connection request. These messages may be sent out sequentially (trying more likely locations first) or they may be sent out simultaneously (to ring multiple extensions at the same time).

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Voice over Data Networks for Managers by Lawrence Harte


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