Business Case for VoIP
The business advantages that drive the accomplishing of VoIP networks accept changed
over time. Starting with simple media convergence, these advantages acquired to include
call-switching intelligence and the absolute user experience.
Originally, ROI calculations centered on toll-bypass and converged-network savings.
Although these accumulation are still accordant today, advances in articulation technologies allow
organizations and account providers to differentiate their artefact offerings by providing
the following:
■ Amount savings: Acceptable time-division multiplexing (TDM), which is acclimated in the
public switched blast arrangement (PSTN) environment, dedicates 64 kbps of bandwidth
per articulation channel. This admission after-effects in bandwidth actuality bare back no
voice cartage exists. VoIP shares bandwidth beyond assorted analytic connections,
which after-effects in a added able use of the bandwidth, thereby abbreviation bandwidth
requirements. A abundant bulk of accessories is bare to amalgamate 64-kbps
channels into accelerated links for carriage beyond a network. Packet telephony uses
statistical assay to circuitous articulation cartage alongside abstracts traffic. This consolidation
results in abundant accumulation on basic accessories and operations costs.
■ Flexibility: The adult functionality of IP networks allows organizations to
be adjustable in the types of applications and casework they accommodate to their customers
and users. Account providers can calmly articulation customers. This helps them to provide
different applications, custom services, and ante depending on cartage volume
needs and added customer-specific factors.
■ Avant-garde features: Following are some examples of the avant-garde appearance provided
by accepted VoIP applications:
■ Avant-garde alarm routing: Back assorted paths abide to affix a alarm to its destination,
some of these paths ability be adopted over others based on cost, distance,
quality, accomplice handoffs, cartage load, or assorted added considerations.
Least-cost acquisition and time-of-day acquisition are two examples of avant-garde call
routing that can be implemented to actuate the best accessible avenue for each
call.
■ Unified messaging: Unified messaging improves communications and productivity.
It provides a distinct user interface for letters that accept been delivered over a
variety of mediums. For example, users can apprehend their e-mail, apprehend their voice
mail, and appearance fax letters by accessing a distinct inbox.
■ Integrated advice systems: Organizations use VoIP to affect business
process transformation. These processes accommodate centralized alarm control, geographically
dispersed basic acquaintance centers, and admission to assets and selfhelp
tools.
■ Long-distance assessment bypass: Long-distance assessment bypass is an adorable band-aid for
organizations that abode a cogent cardinal of calls amid sites that are
charged acceptable long-distance fees. In this case, it ability be added costeffective
to use VoIP to abode those calls beyond an IP network. If the IP WAN
becomes congested, calls can overflow into the PSTN, ensuring that no degradation
occurs in articulation quality.
■ Security: Mechanisms in an IP arrangement acquiesce an ambassador to ensure that IP
conversations are secure. Encryption of acute signaling attack fields and message
bodies assure packets in case of crooked packet interception.
■ Chump relationships: The adequacy to accommodate chump abutment through
multiple mediums, such as telephone, chat, and e-mail, builds solid chump satisfaction
and loyalty. A common IP arrangement allows organizations to provide
contact centermost agents with circumscribed and abreast chump annal along
with accompanying chump communication. Admission to this advice allows quick
problem solving, which builds able chump relationships.
■ Telephony appliance services: XML casework on Cisco IP Phones accord users
another way to accomplish or admission business applications. Some examples of
XML-based casework on Cisco IP Phones are user banal quotes, account checks,
direct-dial directory, announcements, and advertisements. Some Cisco IP Phones
are able with a pixel-based affectation that can affectation abounding cartoon instead of
just argument in the window. The pixel-based affectation capabilities acquiesce you to use
sophisticated graphical presentations for applications on Cisco IP Phones and
make them accessible at any desktop, counter, or location.