Transcript Private ET Network

Enterprise Telephony
 Enterprise Telephony (ET) is a business telephone system because it provides
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basic business features, such as hold, three-way calling, call transfer, and call
forwarding.
Similarities Between PSTN and ET
Circuit Switching.
Common Infrastructure Model.
Local Loop. Services Offered
Differences Between PSTN and ET
Signaling Treatment. PSTN is use from SS& and ET use from CAS and PRI
Advanced Features
Business requirements for telephone networks are much greater than the
average home user. Enterprise customers have the need for high-use, featurerich systems that enable applications such as the following:
Inbound and outbound call centers.
Financial Enterprise Telephony
Common ET Designs
 ET customers can use the PSTN to service basic PBX needs, but the PSTN does
not have advanced applications such as call centers. Also, using PSTN is usually
more costly than using ET, and the PSTN might not have all the necessary
functionality that the enterprise customer needs.
 ET designs generally consist of an inter-working between PSTN and the enterprise
network.
 Simple business line.
 PBX.
 Key-system.
 Centrex line.
 Virtual Private Networks (VPNs)—
Network:
 A computer network or data network is a telecommunications network
which allows computer to exchange data. In computer network, networked
computing devices pass data to each other along network links (data
connections). Data is transferred in the from of packets. The connections
between nodes are established using either cable media or wireless media.
The best-known computer network is the internet.
Private Enterprise Telephony network
 What does Enterprise Private Network mean?
 An enterprise private network is a computer network that helps enterprise companies
with a number of disparate offices connect those offices to each in a secure way over
a network. An enterprise private network is mainly set up to share computer
resources.
 OR An enterprise private network is a computer network built by a business to
interconnect its various company sites (such as production sites, offices and shops)
in order to share computer resources.
 PBX Networks:
 In PSTN each user has individual line from the switch but in PBx network have lower line
from the PSTN. Because most users of the telephone system are not calling externally at the
same time (depending upon the business type), cost savings on PSTN trunks are realized.
PBX Network
 Another advantage to enterprise customers who have their own circuit-switch (PBX) is the
control such a setup offers. If you need to add a new user, change a feature, or move a user
to a different location, there is no need to contact the PSTN carrier.
 In many cases, the user decides to route the call to the PSTN based on an "escape" digit
(this is usually "9" in the U.S. and "0" in Europe). Other times, the user is unaware that
the call is routed over the PSTN.
Tie-Lines for PBX Interconnection
 If a business has two sites and they have a large call volume between them, the
business usually purchases a tie-line. Recall that a tie-line is simply a permanent
circuit between two points (T1, E1).
 cost-effective.
The PBX uses a preprogrammed Automatic Route Selection (ARS) table to
determine which trunk should be used
History:
 The first telegraph enterprises were set up by William Cooke and Charles
Wheatstone in Britain in 1837 and by Samuel Morse and Alfred Vail in
America the following year.
 It was hard going at first. None of the early lines made any profit and it took
several years before business and governments began to see how useful the
telegraph could be. But once the idea caught on, growth was explosive.
Bell's patent, granted on March 7, 1876, has been called the most valuable in
history. It shaped the fortunes of the early telephone businesses. Bell had
patented the principles of the telephone - but with a transmitter that hardly
worked.
Private enterprise
 Thomas Edison, backed by the Western Union Telegraph company, had developed a
carbon-based transmitter that worked much better. But otherwise, his telephone
was just like Bell's
 In the U.S., private networks were started in the early 1970s by AT&T. The networks
were mainly operated over telecommunications networks. During 1990s as Internet
technology evolved, a new type of network called virtual private networks originated.
This type of network was built over public infrastructure, and the data was encrypted to
protect it from eaves-dropping. So the enterprise networks are now commonly referred
to enterprise private networks in order to clarify that these are private networks, in
contrast to public networks.
advantages Enterprise Private Network
 Nowadays, networks built by companies are still called enterprise private networks
when privacy is maintained through security procedures and tunneling protocols like
Layer 2 Tunneling Protocol.
 The messages are secure because they are encrypted.
 They are cost effective and scalable.
 They help to centralize IT resources.
 They enable business continuity.
 No recurring charges—Owning a PBX costs less per month than purchasing Centrex
services from the PSTN
 Control over adds, moves, and changes—There is no need to contact the PSTN
carrier to add new lines, move a phone, or change subscriber information.
ET Network
 Efficient communication networks are crucial to the success of today’s businesses and
they are exposed to even greater dynamics than before: installations may be extended,
new users may be added to the network, services may be extended or more bandwidth
may be required. It must be possible to do all of this quickly and safely while the network
is in operation without disrupting service to users. This is why 3M Telecommunications
provides a wide range of systems for the modular structure of data networks and the
associated consultancy services. With 3M's "Enterprise Network Solutions" you can
adapt and expand data networks to meet current and future requirements.
 In response to the increased demands made on the cabling infrastructure, the range of
Enterprise Network Solutions products includes passive and active products for
terminating, connecting and storing copper and fiber optic cables for the transmission of
voice and data. The service sector portfolio includes network design, project management
and consultancy.
 3M Telecommunications offers Enterprise Network Solutions for high performance
copper, fiber, and copper/fiber hybrid networks. The components of 3M’s solutions
feature innovative and high performance designs that offer strong customer value.
Enterprise Private Network Diagraming
 Network diagrams visualize schematically the computer networks topology, equipment
nodes and different types of their logical and physical connections. They are used by IT
professionals to visually document the topology and design of computer and
telecommunication networks.
Private Data Network
 Enterprise telephony Networks uses its secure, private network to create
virtual connections between your locations as needed. You can securely
share data across your locations on this Private Data Network (PDN),
without the need to purchase expensive physical private line connections.
 Enterprise telephony Networks’ Private Data Network (PDN) provides a
secure, managed service connecting multiple offices without the typical
hassle and expense of alternative solutions.
Benefits PDN:
 Significant cost savings over dedicated private line solutions
 Remote offices or branches can have private access to the same data as your
headquarters
 Secure PDN can be established to other on-net sites as needed, allowing you
to share data
Private Enterprise Number
 Private Enterprise Numbers (PENs) are created and maintained by the
internet assigned number authority in a public registry, including a publicly
revealed email address and contact name. Any private enterprise
(organization) may request, at no cost, a private Enterprise Number (PEN)
to be assigned. All application are reviewed manually.
 Enterprise numbers are commonly used in the Management information
base (MIB), files of the Simple Network Management Protocol (SNMP),
and in vender sub option of the Dynamic (DHCP).
5 Enterprise Networks to Improve
Company Communication
 1.Tibbr:Developed by TIBCO Software, Tibbr is optimized for seamless use on your
desktop or mobile device. The profile layout is similar to Facebook, with space to list
professional skills, past projects and people you've worked with.
 2.Jive: Jive is a mobile-ready ESN with similar profile functions. You can follow
people, groups and topics on the site
 3.Yammer
 Yammer is another ESN optimized for desktop and mobile use. Company
networks are private, so you must have a verified company email in order to
join.
 4.SocialCast
 VMware's SocialCast is another ESN optimized for
mobile or desktop. It provides a centralized workplace
and communication center for employees. You can
create public or private groups, share documents and
manage your projects via SocialCast.
 5.Kaltura
 Kaltura is an open source video platform with both
Internet and Intranet functionality
summary
 ET users have requirements that are different from those of the
average user on the PSTN. Therefore, ET users have equipment
and networks built specifically for those needs. As
telecommunications moves to open standards, the alternatives
to enterprise customers will grow exponentially.
 Reference:
 cisco-voice-over-IP-fundamentals.
Thanks