VoIP Myths

Since the voice, data and video began to be united in the convergent networks, it is more and more than organizations

find advantages in development the IP- communication systems of business- connection, which include IP- telephony, united communications, vocal mail, solutions of client contact -qetrov, and also audio -, video- and web- conference.

Naturally, appeared some questions concerning these

technologies, and also appeared several typical myths. In this article we will share with you with the facts, which led to the appearance of these myths, and let us also grant sufficiently information in order to allow you to make correct decision about the introduction to convergent network and systems IP- communications in your organization.

Thus, the most extended MYTHS:

MYTH 1: Users one should wait

With the introduction of business- connection on base IP until standards in this region become more "adult".

MYTH 2: The construction of business- communications with use IP exceeds on the cost the construction of the traditional communication system with time sharing of channels (Time-Division Multiplexing, TDM).

MYTH 3: There exists not one invariant case ("only so" the case), which bases application of IP-communications in the business.

MYTH 4: Business- connection systems, based on IP, are protected less than the hybrid systems, which use both IP, and traditional technologies of connection.

MYTH 5: The development of business- connection systems on IP implies the ejection of your previous investments into the traditional solutions of voice transmission.

MYTH 1

Users one should wait with the introduction of

business- connection on base IP until standards in this region become more "adult".

It is understood by this that the process of

standardization in the tele-communications and the transmission of data - these are complex and the mistifitsirovannoye skill, with many traditions, secret voting, and sometimes extended extend to the decades. Hence, many people think that because of a sufficient

novelty of technologies IP- communications, the in force standards for the data of the solutions sufficiently were not affirmed so that it would be possible to invest into these technologies. Is great the fear of the fact that, after putting in the IP- communication system today, in yr you will prove to be facing face with the completely changed peace, and your system will prove to be simply

useless.

REALITY

Fundamental standards for IP- communications have already long ago been accepted; new standards will continue to

appear.

In the world of technologies, to that, in order to convert

standard into the article, sometimes departs less than the year.

In the case with the connection on IP, all critical for the

success systems standards have already long ago passed this way.

Fact: many people they will be very astonished, when they

learn, what quantity of standards will be begun to operate, when you simply remove tube from IP- telephone.

MYTH 2

The construction of business- communications with

use IP exceeds on the cost the construction of the traditional communication system with time sharing of channels (Time-Division Multiplexing, TDM).

Contemporary IP- telephones seem more expensive than their

analogs for the networks with the commutation of channels and corporate digital communication systems. In IP- telephonies, major portion of the prime cost is contained in the terminal devices, but not in the pays of the expansion of corporate ATS or the controllers of substation; this can create the opinion that the large part of the expenditures for the realization of project is

attached to the user terminals. User sees only exceeding cost of telephones for VoIP, but not comparative price, based on the averaged cost of one port of the pay of expansion and user end for corporate ATS. Therefore, incorrect relation to the price becomes barrier

for introduction IP- telephony at the enterprise.

The companies of the small and mid-sized business, with an

even larger sensitivity to the price, will put VoIP- solutions into use with even the lower rates, until relatively inexpensive proposals for their markets appear.

REALITY

It is proven that the solutions on base IP-

communications propose the lower joint cost of possession (Total Cost of Ownership, TCO), and the very high index of return from the investments (Return of Investment, ROI).

Typical IP- telephone today stands so many, or even only

it is less than equivalent telephone for the digital intra-office communication network. If you are oriented toward the lower joint cost of possession, which escapes from the introduction of solution of IP- communications for the convergent transmission network of voice, by video and given, this solution will make it possible to save organizations the very large sums of money.

It is worthwhile to only transfer the factors of savings

in order to compose idea about how companies from Forbes 500 obtained the possibility not to spend excess million dollars on the lease of communication channels and the attraction of strange expenditures. This and savings on the chosen lines telephone network, savings on the passages, the addition of new ends, the changes in the structure of connection, conference- connection, and, certainly, distant and transcontinental connection also, the introduction of

systems VoIP simplifies servicing the corporate communication systems, which only on the installation, the installation and the maintenance leads to the savings to 30% of means yearly.

MYTH 3

There exists not one invariant case ("only so" the

case), which bases application of IP- communications in the business.

Finally, even if they were, they would begin them to use?

And no whether to wait sense for the organization to the

discovery of such applications so as to put in the convergence of voice, video and data with the aid of the solutions on base IP?

REALITY

Today there is an enormous quantity of field of

applications for IP- communications, which reduce prime cost, increase the productivity of company and improve the index of the satisfactoriness of client.

The present force IP- communications lies at the

association for the end user of the applications of voice, video and data. Architecture IP- communications makes it possible to integrate the new applications of connection into the existing system of management of enterprise, beginning from the electronic mail and concluding by contact- centers, by the system of operational notification and by hotel telephone systems.

Just as there is not no one invariant reasons for the

introduction of the Internet, there is not one invariant case of introduction IP- communications. The most significant application IP- communications will differ from one enterprise to another, and the utilized functions, all the more, from one user to another.

MYTH 4

Business- connection systems, based on IP, are less protected than the hybrid systems, which use both IP, and traditional technologies of connection.

For many people as unsubstantiated truth serves the fact

that the solutions on base IP- communications are less protected than hybrid systems. Their assertion out of danger of hybrid systems, is similar, it is such: "when for the last time Internet- worm forced open your ATS?"

REALITY

The solutions on base IP- communications are very

safe and are very reliable.

The factor of safety is always important - it is not

dependent on that, you do transfer voice by your transmission network of data or not. But "myth" is actually assertion, that the hybrid systems are more safe than the communication solutions, from the beginning also to the end built on IP.

To all it is known, as traditional digital ATS are

established and are connected. With these systems, you must hold in the head such factors as hearing, unsanctioned use intercity communication, the installation of illegal modems for the remote access into the network... By the way about the hearing: sometimes start in communication channel can be accomplished only with the pair of joints -"krokodilov". Then, probably these reasons make it possible to forget about the Internet- worms. However that may be, some people think that one ought not to worry about the safety of network, if we are entrusted by one of "hybrid" strategies and turn to the traditional suppliers of services

to system integration.

Usually, the first step in the process of hybrid migration

lies in the fact that to take out processor and knot of working calls of ATS and to arrange them on the chosen local network. It is further, you should ascertain that this network is absolutely safe, since the attack on the component of working calls will influence immediately to all subscribers of system, but not only to subscribers

VoIP.

In this case, you should support the same level of safety in the chosen network, as if and entire system worked to IP, and still support two diverse networks, thus without using advantage of the use of the integrated solution on the united, convergent transmission network of data and voice.

There is no doubt about the fact that safety is very

important factor during development VoIP of telephony. During the construction of the policy of safety, directed toward averting of common for vocal and IP networks of disturbances, it is important to be focused on the following three key components IP- communications:

* Security - with the aid of the safe connections.

Such technologies, as IP Security (IPSec) and SSL Virtual

Private Networks (VPNs) help to be certified in the fact that

connection both through the global networks, including the Internet

and through the local network of enterprise, completely otgorozhena

from the intrusions.

* Protection - through the systems of averting attacks.

Use it is sluice networks and the systems of averting intrusion

both from the external and from the internal perimeter of network.

* Control of access - with the aid of authorization systems.

The servers for administration of access make possible for

organizations to check access to information, making possible for

necessary people to obtain information in the necessary time necessary

to them.

MYTH 5

The development of business- connection systems on IP implies the ejection of your previous investments into the

traditional solutions of voice transmission.

Since all companies already have the certain systems of

oral communication, many people consider that the passage to IP-communications indicates the ejection of all means, spent in recent years on the construction of this vocal infrastructure. There is a preconceived sensation, that it is necessary to immerse to the set of trucks old equipment and to establish in its place new, this sensation leads to the large overestimation of the reality of passage on the technology of voice transmission on IP.

REALITY

The solutions on base IP- communications propose migration at that level, which is most convenient for the organization. Here is an example of the application of old means of thinking to the absolutely new phenomenon. In the world TDM, corporate telephony was understood as the collection of the boxes, which were located in each building of company. Each box had some quantity of shelves, each shelf had some collection of the pays of expansion, and in each of the pays there was some quantity of telephone ports.

In the world IP- communications, one should think about

the telephony as about the certain service in the network. This service is accessible from any point of network, independent of position. For example, organization with several offices can unroll the server of working calls only in the central office, and then connect the remote subdivisions through the virtual particular network and allow the remote colleagues to use by IP- telephony.

Finally, each supplier of equipment in the industry IT

will agree with you, if you say that the metallic boxes, called "UATS", screwed on by bolts to the concrete walls of buildings, in the very near future entirely will disappear: no boxes, no shelves, the maps of expansion or ports.

Integration with long ago existing and produced ATS and

systems of vocal mail - this is what makes possible for VoIP technology to satisfy the desire of quite priveledged client, instead of limiting some his technological characteristics as this it was in the world TDM.

The idea of the net service, not attached to the position,

means that moreover the company can use a block- objective approach to the migration from their existing infrastructure of connection to IP, being based, for instance, on the approaches "by division-for-division", "group-for- group", or "function-for- function". 99% of companies, which wholly passed on IP- communication, were

guided by precisely this approach.

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