ViBE is a technology that allows high quality VoIP calls to be carried over low bandwidth links without compromising call quality or the user experience. It analyzes and strips unnecessary data from voice packets to maximize available bandwidth for VoIP. This allows ViBE to carry an unprecedented number of simultaneous, high quality VoIP calls even on standard residential broadband connections. By prioritizing voice data packets, ViBE delivers VoIP without compromising call quality or other data activities over the same connection.

1. ViBE – Overview
Voice & Data on one
link with no effect on
voice quality

2. Overview
In principle the idea of VoIP is great, reducing costs and
integrating voice with your existing data infrastructure.
VoIP allows you to get rid of PSTN lines and PBX systems
meaning a big reduction in management and maintenance,
which, most importantly cuts your costs. But while VoIP
undoubtedly brings many benefits, users still have to make
a number of compromises to reap these rewards.
In reality VoIP suffers from one major ViBE effectively creates a connection over
BY ANALYSING EACH problem; call quality quickly degrades over any link (ADSL, 3G, ISDN or satellite) that
VOICE DATA PACKET, low bandwidth links. VoIP calls can also prioritises voice data packets meaning
STRIPPING AWAY ALL easily over-subscribe a link making it hard to all the problems with VoIP calls, including
manage your VoIP system. Getting a network jitter and latency, simply stop being a
THE UNNECESSARY
with enough bandwidth to cater for all your problem. Whatever the data overheads
DATA, VIBE CAN SEND VoIP calls and other data can be expensive – flowing over a link, voice data always
AN UNPRECEDENTED even more expensive than sticking with your has priority, meaning ViBE calls are
NUMBER OF VOIP conventional telephone system. always at business class quality, without
CALLS OVER A And so using a VoIP system has meant
compromising other data activities.
DATA NETWORK. making some kind of compromise, At present three to four voice calls are
either a compromise in call quality comfortably carried over a standard ADSL
or a compromise on cost. link. Once the number of calls increases,
and data is also sent over the link, then VoIP
ViBE removes the bandwidth problems
call quality starts to degrade.
that have always been associated with
VoIP, allowing calls to be carried over Compressing the voice data would seem
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cost effective ADSL. like the most obvious way of getting more
VoIP calls across the available bandwidth,
ViBE finally delivers VoIP without compromise.
however such compression is detrimental
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How ViBE Works to call quality. ViBE tackles the problem in
a much more effective way. By analysing
For any VoIP call to be of a high quality its
each voice data packet, stripping away
voice data needs to flow continually from
the unnecessary data, ViBE can send an
point to point. Once the flow of voice data
unprecedented number of VoIP calls over
is interrupted the call becomes jittery and
a data network.
both participants are likely to find it hard
to understand what the other is saying.
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3. ViBE – Benefits
60 simultaneous calls
over an average UK
broadband connection

4. Benefits
ViBE’s main benefit is its ability to use standard ADSL
(broadband) connections to carry a high volume of VoIP calls
simultaneously - and all at business class quality. The number
of calls ViBE can carry at once is dependent on the bandwidth
available. But 60 coexistent calls plus other data - like email and
web browsing - is possible based on the UK’s average upload
speed of 768Kbits per second as at February 2011.
By taking advantage of ViBE’s ability to is approached. Problems such as pops,
use ADSL you can avoid IP infrastructure crackles, and even gaps in speech can
upgrades when making the move to VoIP. become evident. ViBE guarantees a high
ViBE lets you maximise the use of your quality of all calls regardless of bandwidth.
existing IP infrastructure, with no need
ViBE reduces the time your voice takes to get
for an expensive bandwidth upgrade to
to its destination. This eliminates the risk of
accommodate both the voice and data.
calls becoming disjointed when both parties
Without ViBE a dedicated broadband line
speak at the same time - so often a problem
would be required for every three to four
when VoIP is used over low-speed networks.
telephone lines you wish to replace.
With existing VoIP solutions, should a
With ViBE a single dedicated broadband
broadband networking relying on ISDN
line can be used to replace 60 telephone
failover in the event of a problem, any
lines. If the requirement is smaller, the
existing calls would likely be dropped.
voice can share the same connection as
VIBE REDUCES THE When used in conjunction with our ISDN
your existing IP data.
TIME WHICH YOUR backup options, ViBE ensures all calls
VOICE TAKES TO GET TO Traditionally IP networks are only around continue (bandwidth allowing), with just a
ITS DESTINATION. THIS 70 per cent efficient. ViBE not only slight pause (approximately one second)
ELIMINATES THE RISK increases the call capacity of your network, during switchover ensuring call continuity
but also increases the efficiency of the during resiliency failover.
OF CALLS BECOMING
network for existing data to a level in
DISJOINTED WHEN ViBE Benefits:
excess of 90 per cent. Ordinarily when using
BOTH PARTIES SPEAK VoIP over a broadband network, even the • Cut costs by using your existing
AT THE SAME TIME. presence of one or two calls can make data IP infrastructure
connections very unreliable and ‘choppy’. - 60 Calls plus data over a
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With ViBE, your data transfer scales standard ADSL line
perfectly as more calls are made, even
• Active - Active link bonding
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when approaching the maximum load.
• Real Time Monitoring
ViBE uses a customised QoS (Quality of
• Call continuity during resiliency fail over
Service), designed specifically for voice
data. While existing QoS was designed to • Cut costs by moving to VoIP and removing
manage bandwidth as best as possible for the need for:
multiple applications, it falls short of being - PSTN/ISDN Lines
able to cope with real-time requirements - PBX Systems
such as voice. ViBE addresses this issue • Get all the other benefits of VoIP
by using custom methods to guarantee
- Flexibility – Location Independence
quality of service for real-time applications.
- Integration with desktop (Outlook,
Conventional QoS methods of sharing data
Salesforce – click to call)
and voice on the same IP connection results
in a loss of call quality when full capacity
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5. ViBE – Technical Information
Better than
QoS
performance

6. Technical Information
Reduced bandwidth requirements - G.729 causing conversations to become disjointed. ViBE Features
calls require 42kbps of bandwidth when ViBE completely eliminates this problem.
• Seamlessly convert G.711 to another
transmitted over a broadband link due to
Link quality monitoring - optional reporting format and back again
overheads, whereas the actual voice data
generates statistics such as the number of • Overheads per call nominally reduced
only needs 8kbps. ViBE removes many
simultaneous calls over time, link latency, to less than one byte per packet. G.729
of these overheads and maximises the
uptime, and packet loss, as well as call jitter. @ 10mS uses 8.23kbit/s of available
bandwidth usage.
ViBE Installation bandwidth regardless of WAN type
VPN support - ViBE can be configured to (compare to 84.8kbit/s on ADSL)
create one or more virtual private networks Typically ViBE can be deployed in two ways,
• Implemented at both ends of link - voice
between several sites, ensuring that your as a point–to-point configuration or in a
and data controlled in both directions
voice and data remain secure. service provider / enterprise configuration
that can handle multiple customer locations. • Data packets are sliced with zero overhead
Resiliency control - ViBE can intelligently and don’t need to wait
control resiliency options on the IP network ViBE Hardware
• Understands about hidden overheads -
in order to ensure continuity of calls.
ViBE enabled devices are available in a 100% of link bandwidth can be used
ViBE will detect a network failure in less
variety of configurations with capacities • Works well even on slow links making it
than one second and take remedial action.
from 30 to 3000 simultaneous calls. possible to use 128k link for voice and data
Multiple IP link bonding - multiple links All ViBE hardware supports:
• Interactive traffic not choppy
can be bonded efficiently, so for example,
• Full router functionality such as policy
two standard 512Kb / 256Kb broadband lines ViBE has built in SNMP and is capable
routing, BGP, stateful firewall, etc.
could be used to manage 50 simultaneous of monitoring:
calls while still carrying other data. • Hardware failover using VRRP
• Underlying link quality
Reduced call jitter - average call jitter • Can be paired to avoid hardware Single
Point of Failure • Packet loss, latency and jitter
across the WAN is reduced to the order of
• Faults with the link can be distinguished
1ms whether or not data is present on the • Link bonding and failover, call access
from customer created ones
same link. This compares with more than control, statistics generation, etc.
100ms of jitter typically found on a standard • Calls in progress
• Can use N+1 in the core of an enterprise/
broadband connection. service provider • General system health
Reduced call latency – end-to-end latency • ViBE can also be deployed to
is reduced, especially in the presence of high third-party devices including: Netgear
data loads. With standard broadband, end- DG834GT, DGN2000, DGN3500 and
to-end latency can easily rise above 100ms, Vmware ESXi server
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Point to Point Installation TECH
TELECOMS Service Provider / Enterprise Installation
ADSL / MPLS
Internet
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