Alcatel-Lucent ISAM Voice User Manual
Alcatel-Lucent
ISAM Voice
For smooth migration to NGN/IMS
The Alcatel-Lucent Intelligent Services Access Manager (ISAM) Voice
component provides Voice over IP (VoIP) gateway functionality to
the Alcatel-Lucent ISAM family of products. With ISAM Voice, service
providers are able to connect customer premises legacy POTS or ISDN to
Next-Generation Networks (NGNs) and IMS networks. With the ISAM
family, operators can also deploy a converged broadband access network
that supports triple play rollout, including new services, such as Internet
Protocol TV, (IPTV) while migrating the legacy PSTN to an NGN/IMS
environment — key factors in successfully transforming access networks.
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Dealing with PSTN migration
As part of their strategic initiative,
service providers should re-evaluate
current service offerings and product
lifecycles, and prioritize services to
be migrated onto next-generation
network architecture. It’s not efficient
to migrate all services to the next-
As an incumbent service provider in an increasingly
saturated fixed voice market, you face the declining
profitability of your PSTN. With severe competition,
the average price per minute of voice calls is decreasing;
moreover, cable operators are offering attractive service
bundles; alternative VoIP providers are offering low tariffs
using third-party access networks, and some customers are
abandoning fixed voice lines in favor of mobile phones.
At the same time, your operational costs are flat at best,
with a trend to increase as the TDM network becomes
older and obsolete. In fact, the eventual cost of running
the network will no longer be justified by the revenue
the network generates.
To meet these challenges, you are looking to migrate your
PSTN to an IP network. Remaining competitive means
optimizing the delivery of traditional voice services while
creating an all-IP network capable of delivering new voice
and multimedia services. This dual-pronged strategy makes
sense. As broadband penetration continues to grow, you
can combine your investment in the modernization of the
PSTN with the building out of IPTV and high-speed
Internet access networks — two areas currently undergoing
substantial growth. Adopting an IP- and Ethernet-based
platform with the flexibility of bringing fiber as close as
economically possible to the end user, will also let you
achieve your goal of converged voice and data access
networks, with minimum cost of ownership.
generation network at the same
time — service providers should take
a step-by-step approach for network
optimization. Network optimization
should be based on increasing network
capacity and improving operational
efficiency.
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IP Voice Transformation with Alcatel-Lucent ISAM Voice
Bundling opportunities with Alcatel-Lucent
ISAM during IP voice migration
PSTN transformation is driven by fierce competition,
erosion of voice revenue, network obsolescence, IP network
transformation, bringing fiber closer to the end user, and
the desire to introduce new and compelling voice-related
services. As a result, you need a flexible solution to act on
these challenges.
The Alcatel-Lucent IP-based ISAM — a major component
of both the Alcatel-Lucent Triple Play Service Delivery
Architecture (TPSDA) and the Alcatel-Lucent end-toend IP Voice solution — is ideally positioned for PSTN
network transformation.
Migrating legacy voice lines
For primary line migration, the Alcatel-Lucent ISAM
family provides a network-based voice solution that lets you
choose either SIP or H.248 as the signaling protocol. With
this network-based solution, packetization occurs in the
access node, so you don’t need to change end-user equipment
and the life-line support model (unlike the CPE-based
approach — the alternative method for voice access).
What’s more, the Alcatel-Lucent ISAM family offers superb
VoIP quality of service (QoS). With advanced queue management for voice delivery, strict priority over any other
service, you can rest assured of minimum transfer delay.
Together with the support of both SIP and H.248, this
advanced QoS implementation for voice, provides the
most flexible path to IP voice transformation.
Delivering voice and data convergence
with broadband evolution
As you expand your broadband rollout to increase coverage
of IPTV while offering high-speed Internet access, you
can lower the cost of modernizing the PSTN. Your investment in a true Triple Play Service Delivery Architecture
(TPSDA) meets not only the challenge of obsolescence,
but also lowers operational expenses (OPEX) via unified
training and network management, as well as through
shared spares and software upgrades for voice and broadband services. In addition, your OPEX is lowered through
simpler bundled service offerings with self-profiling options
for your customers.
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