Stratus Telecommunications Residential VoIP Services Solution
Telecommunications Solutions Brief
Competition for subscriber communication and entertainment dollars is heating up even as
carriers and service providers are struggling to maintain margins. The high penetration rate of
broadband Internet access coupled with the wide acceptance of industry-standard IP components
has opened the door to a diverse mix of competitors seeking additional revenue opportunities.
Without the need to build an expensive access network, the barrier to entry for delivering
residential voice services has been lowered, and the market for Voice over IP (VoIP) service
offerings is crowded with traditional telco providers, wireless, broadband, and next-generation
Many incumbent telecommunications operators are offering VoIP services as a cost-effective way
to capture additional subscriber revenues while protecting market share for their existing service
offerings. By bundling residential VoIP services with video and data, these service providers can
deliver added value to customers in the form of consolidated billing, Web-based self-management
of CLASS features and enhanced services, such as click-to-dial and unified messaging.
Competitive pricing and superior mobility continue to help wireless operators gain market share
over traditional operators. To further extend their market reach and revenue potential, wireless
operators can offer seamless handover between wireless and IP-based networks. This improves
in-home coverage and allows bundling of data and voice service within WiFi hotspots or
Broadband service providers (MSOs or ISPs) can add value and increase market share by adding
VoIP as an overlay to their existing networks. Their ability to deliver end-to-end Quality of
Service (QoS) coupled with their understanding of data security gives these providers a
competitive edge. The enhanced services capabilities of VoIP can also enable these providers to
differentiate their service bundles from those of traditional telco competitors.
Greenfield service providers can deploy VoIP via the public Internet or managed IP networks to
create free or low-cost alternatives for voice and video communications services. For example,
companies can offer free instant messaging (IM), voice and video communications to drive
advertising revenue from a search engine, on-line retail site or social networking service. These
providers are creating new competition, especially for international long distance services.
In an extremely complex and competitive marketplace in which new players are usurping the
domain of the traditional telco, future success will be awarded to customer-focused, innovative
service providers. Assuming a proactive strategy by expanding service offerings to include high-
speed Internet access and VoIP services along with broadcast video and wireless services can be
the key to protecting an existing subscriber base and maximizing revenue opportunities.
The communications and entertainment market are quickly converging and subscribers are
responding to value-added services that help optimize their time and budget. Bundling voice, data
and video services has emerged as a clearly successful trend for attracting and retaining
customers while increasing revenue. To profit from this opportunity, service providers must
evolve their networks — while rigorously managing expenses — so that they are capable of
introducing value-added differentiated services to the market quickly in response to changing
customer needs. Stratus Telecom offers service providers a complete solution and roadmap to
help evolve their networks at their own pace while integrating VoIP services into any network:
PSTN, wireless, cable, or next generation carrier network.
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Stratus Telecom offers an end-to-end VoIP solution and a suite of professional services, including
planning, design, installation, integration and testing. Our feature-rich, turnkey solution
incorporates carrier-class elements from leading vendors and provides a single point-of-contact
for streamlined maintenance and support.
The Stratus Telecom Residential and Enterprise VoIP (E-REV) is a full-featured, turnkey solution
that enables service providers to turn up VoIP services in a matter of weeks and respond quickly
to changing customer needs. Based on the modular, open ENTICE™ (emerging networks
telecommunications infrastructure control environment) architecture, E-REV is a pre-integrated
solution for end-to-end delivery, provisioning and management of VoIP services that can be
scaled and customized to create a variety of market offerings. By combining session controller
and softswitch functionality into a single, open solution based on a common architecture, E-REV
allows calls to move seamlessly through NATs, firewalls, the Internet and the PSTN. E-REV
includes customizable templates that facilitate the creation of branded retail-side Web pages and
an intuitive user interface, so service providers can give their residential customers control over
their communications services.
The E-REV solution can be deployed on fault-tolerant ftServer® systems from Stratus
Technologies, which deliver the added advantages of the Red Hat® Enterprise Linux® operating
environment combined with an Intel-based platform known for 99.999% + reliability. These
continuously available telecommunications-grade servers are NEBS™ Level-3 compliant.
The E-REV product scales from an entry level system with 250 simultaneous sessions up to
systems with over 100,000 sessions and millions of residential subscribers. The ENTICE system
architecture supports hardware fault-tolerant servers combined with a 1:1 or N+1 architecture.
This creates a cost effective solution that starts small and grows as more subscribers are added to
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The E-REV solution supports a variety of SIP endpoints and provides a rich set of Class 5
• Call Forwarding
• Call Waiting
• Three-Way Calling
• Caller ID
• Call Hold
• Distinctive Ring
• Unified Messaging (Email Delivery)
• Find Me/Follow Me (Simultaneous or Sequential Ring)
• Web-based Management
Future enhancements include click-to-dial from a user’s Microsoft Outlook® contact directory,
ad-hoc conferencing services and fixed-to-wireless mobility.
Stratus Telecom provides media services such as network-based announcements, voicemail,
unified messaging, auto-attendant and IVRU services as part of the E-REV solution. In addition,
third-party media servers can be connected using SIP/XML signaling and custom applications
developed by either Stratus Telecom or third-party ISV partners.
PSTN /TDM Connectivity
Stratus Telecom supports a number of third-party Media Gateways and Media Gateway
Controllers for interfacing with legacy PSTN networks. Support for industry-standard signaling
protocols, such as SIP, H.323, SS7, PRI and H.248, facilitates interoperability, enabling Stratus
Telecom to leverage best-of-breed products and deliver the optimum solution for each customer’s
The Stratus Telecom solution for residential VoIP incorporates provisioning of SIP endpoints
(ATAs, IP phones, or soft clients), system operations, network management and centralized
management of customer accounts. Integrated Web-based management presents a single view of
the entire Stratus Telecom VoIP system, simplifying management tasks. Several billing solutions
are available, supporting customer invoice generation and both prepaid and postpaid charging.
Carriers can offer personal 800 numbers, calling cards and other convenient billing models to
address their target market.
Telecom Professional Services
Stratus Telecom can assist service providers with end-to-end implementation of residential VoIP
solutions, offering services that include network assessments, network planning, custom
application development, system integration, transition to operations and more. Designed to
minimize risk and reduce time-to-revenue, these comprehensive services are backed by more than
25 years of experience in delivering optimized solutions for operator networks.
The foundation of a successful VoIP deployment depends largely on the solution partner. Our
business model is uniquely geared to deliver the flexibility, innovation and reliability needed to
help service providers become successful multi-service operators. For more than 28 years,
Stratus Telecom has integrated products and services from industry-leading manufacturers to
provide superior solutions in operator networks. Our rigorous, disciplined approach to detailed
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project management and industry expertise will assure a successful, timely and cost-effective
VoIP implementation. In addition, Stratus Telecom has a full line of products that support
traditional fixed and wireless network signaling to allow VoIP solutions to seamlessly connect
with traditional networks and services.
Solution Features and Benefits
Fully integrated, turnkey • Single point-of-contact from design to installation to support
solution • Rapid time to market
Flexible, scalable solution • Will scale to support subscriber growth
Industry-leading partners and
• Proven interoperability with third-party devices and gateways
• State-of-the-art solution capable of evolving with network
Robust feature set for VoIP and
• Satisfies subscriber needs
• Delivers 99.999%+ uptime
25+ year history of network
• Trusted, experienced vendor
The Stratus Telecom Difference
Several capabilities exclusive to the Stratus Telecom architecture provide competitive advantages
to all types of service providers:
• Built-in APIs facilitate the development of custom applications and the integration of VoIP
services into enterprise office suites or vertical applications;
• Support for third-party components affords service providers the opportunity to select other
solution components, such as billing;
• The E-REV solution architecture can be partitioned, enabling service providers to host end-
to-end VoIP services for multiple “switchless” resellers on the same platform;
• Because Stratus Telecom solutions share the ENTICE architecture, they can be seamlessly
integrated together to create solutions that precisely align with customer needs.
The unique design of the Stratus Telecom E-REV solution empowers service providers to
differentiate their offerings, leverage existing network assets, rapidly add high margin services
and respond quickly to changing market needs.
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