Page 9 - Telecom Reseller AprilMay 2015

April/May 2015
Telecom Reseller 9
Improving VoIP Service Quality with
WAN resources and the application needs. As
traic moves across the network, automated
WAN Orchestration, Broadband decisions about latency and throughput occur
in real time. WAN orchestrators can accomplish
sophisticated network functions beyond simple
static traic policing, such as dynamic low
Bonding and Other Technologies
mapping, low based traic grooming, elastic IP
address management and various advanced QoS
functions. Packets can be diverted, in real-time,
to the most ideal path whenever there’s jitter,
Bcongestion packet loss or excess latency that A
usiness VoIP services continue to gain unpredictable.
could impact the voice call.
KIN
traction, as more enterprises adopt here’s also latency—the time between when a
hese are mostly geared toward improving
session initiation protocol (SIP) trunking
and cloud services across their operations in packet is transmitted and the moment it reaches its destination. Spikes in Internet utilization and WAN performance of the applications and reliability and as a result, provide better end-user By Dr. Cahit Jay Akin, Chief
an efort to cut costs, connect branch oices online application loads can cause latency, as can experience. hey also directly impact costs, as Executive Oficer, Co-founder
that span multiple regions and even the the routing of traic through Internet nodes and more can be accomplished with the same set of of Mushroom Networks (www.
globe, and support their growing numbers of other backbone devices. For VoIP, latency and WAN links, or the same performance metrics can mushroomnetworks.com)
telecommuters.
jitter (variance of latency) can cause delays and be achieved with fewer or less expensive WAN
But the ensuing market growth—which WANs. Broadband Bonding melds various lead to echo and other audio artifacts. Of course, if links.
research irm Frost & Sullivan estimates will Internet lines into a single connection, boosting an IP link goes down, the call is altogether lost.
Broadband Bonding technology bonds the
grow from $3.22 billion in 2014 to $10.29 billion connectivity speeds and addressing latency various numbers of Internet lines into a single
in 2020 in North American alone—could be within IP tunnels.
TECHNOLOGIES FOR IMPROVING connection, providing faster connectivity via
stymied if VoIP service isn’t cost-efective, ENTERPRISE VOIP
the sum of all the line speeds and ensuring that
reliable and able to meet or exceed enterprises’ VOIP’S APPEAL
Multiprotocol Label Switching (MPLS) provides even global irms that have hundreds of branch
Service Level Agreements (SLAs). Many of the VoIP technology lets enterprises use broadband 99.99% reliability that ensures the network is oices scattered around the world can ofer all
traditional solutions designed to improve VoIP Internet connectivity to make and receive available and packets will reach their destination their oices the same level of connectivity as the
performance, ranging from Multiprotocol Label telephone calls. he technology delivers a number without being delayed or dropped. Quality of headquarters—all without the outlay of high
Switching (MPLS) links to WAN optimization of beneits: lowered telecommunications costs;
Service (QoS) features in MPLS ensure VoIP calls capital. he end result is a faster connection
and load balancing, have their limitations. hey a single phone number can ring on multiple are prioritized over data traic.
with multiple built-in redundancies that can
are either too costly or simply aren’t ideal for real- devices, from the desktop to the tablet; simpliied While MPLS makes sense for critical automatically switch on a secondary line in case a
time voice communications.
deployments; and costs and complexities that are networking needs, for many businesses
primary link fails.
Newer technologies that can optimize network eased by having a single network for voice and it is simply too expensive for voice VoIP can cut telecommunications costs and
performance, however, are emerging. hese technologies don’t require upgrades to costly data. It also ofers advanced capabilities such as business recovery and mobile features.
communications—especially when cheaper Internet connections are readily available. New even deliver advanced business recovery and mobility solutions. But enterprises won’t fully
premium bandwidth but instead make use
But there are ongoing concerns around and emerging technologies, however, can deliver commit to VoIP if they have to run it over
of cost efective broadband and intelligently reliability, quality and the fact that the Internet reliable, high-speed and redundant connections expensive MPLS or give up reliability, quality
shield VoIP services from jitter and latency has weak—or non-existent—failover capabilities that leverage readily available, low-cost and failover capabilities. New technologies such
and other common behaviors of IP networks. at the last mile. While data can tolerate some broadband to give MPLS its run for its money.
as WAN Orchestration and Broadband Bonding
WAN orchestration, for example, enables an delays and latency, VoIP cannot. It is reliant on Broadband Bonding and WAN orchestration can optimize IP performance, boost connectivity
intelligence layer that sits on top of multiple the performance of the IP tunnel through which in general operates much like an intelligent traic speeds, and shield VoIP services from jitter,
the WAN links to facilitate the understanding, the communications must travel, and IP tunnels cop who measures and manages the network latency and other unwanted behaviors that
management and monitoring of enterprise IP
are inevitably congested and packet-loss is
traic against the various characteristics of the
degrade performance. ■

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