CUSTOMER SUCCESS STORY
Creating a Hosted PBX
Offering with Acme Packet
“Since using TransNexus and Acme Packet to implement our hosted PBX offering, we are
able to provide an end to end solution customized to their individual business needs. "
­Michael Greco,Chief Technology Officer FUSE 3
KEY BENEFITS
- Carrier Grade Network
Uptime
- Routing by time of day,
day of week
- Routing by calling and
called number
- Ability to offer variety
of calling products
- No Loss Least Cost
Routing
ABOUT
TRANSNEXUS
TransNexus is a
software development
company specializing in
applications for
managing wholesale
VoIP networks.
TransNexus provides its
Operations and Billing
Support System
(OSS/BSS) software
platform to major VoIP
carriers worldwide.
Important carrier
features offered by
TransNexus are least
cost routing, number
portability, fraud
detection, profitability
analysis and QoS
controls. TransNexus is
an active contributor to
open source software
projects and only offers
software products based
on open standards.
ABOUT FUSE 3
Since 1 997, FUSE 3 Communications has been focused on fulfilling the technology
needs of the small and medium business (SMB) market in California by providing a
complete hosted technology infrastructure. FUSE 3 delivers an array of managed
and ala carte Information Technology solutions and services, including desktop
support, collocation, data backup and recovery, voice and data cabling, T1
connectivity, and consulting. Using a state-of-the-art Network Operations Center
with remote management tools, and an experienced team of engineers, FUSE 3 has
made it their mission to design, implement, and maintain enterprise-quality, scalable
IT infrastructures and solutions that unlock business potential and increase
productivity.
THE CHALLENGE
FUSE 3 had a goal of providing complete hosted technology infrastructure for their
customers, and one area of technology that they were lacking was telephony. FUSE
3 decided to expand their IT offerings to include hosted PBX service. FUSE 3
needed a solution that could keep costs low and provide customers with the same
quality of experience that they expected from other FUSE 3 managed services.
FUSE 3 wanted to be able to offer a variety of features that many of their clients
thought were out of their reach including voicemail, voice to email, internal
extensions, and call recording.
FUSE 3 used its experience in providing hosted services to build its hosted PBX
platform in-house. To ensure the highest level of security and reliability for their
customers, FUSE 3 purchased the industry-leading Net-Net Session Director
session border controller (SBC) from Acme Packet. These SBCs provided critical
control functions to deliver high quality interactive communications—voice, video
and multimedia sessions—across IP network borders. In addition to its hosted PBX
platform and the Acme Packet Net-Net Session Director, FUSE 3 also needed a
service provider operations support system (OSS) for dynamic least cost routing,
Direct Inward Dialed (DID) routing, quality of service (QoS) reporting and alarms,
and trouble shooting.
THE SOLUTION
“TransNexus was referred to FUSE 3 by Acme Packet our session border controller
vendor,” said Michael Greco, CTO of FUSE 3.” “We had multiple conversations and
meetings with TransNexus and their experience was a tremendous help. With the
support of the TransNexus staff we put together a detailed implementation plan and
quickly deployed the TransNexus solution with our Acme Packet SBCs.”
TransNexus is an Acme Packet Interop Plus Partner. These technology ecosystem
partners represent a wide range of companies that interoperate with Acme Packet’s
product suite. Interop Plus partners must complete interoperability testing for
current and new product releases, which are deployed with Acme Packet in
customer locations. Acme Packet’s SBCs generate comprehensive Call Detail
Records, which TransNexus software converts into robust traffic and QoS reports.
“TransNexus was really built to take advantage of the information collected by Acme
Packet. Out of the box, TransNexus was ready to go with our network,” said Greco.
The complete TransNexus Routing, Operations and Billing Support System
(ROBSS) consists of the NexOSS software suite and the OSPrey routing server,
which work with any SBC for dynamic least cost routing and comprehensive
reporting. TransNexus ROBSS works both for outbound calls and inbound Direct
Inward Dial (DID) calls. With this solution, FUSE 3 was able to offer customers a
telephone number and route inbound SIP calls from the PSTN.
TransNexus creates a routing table with up to 1 00,000,000 translations, which
ensures that FUSE 3 never loses money on a call. In addition, TransNexus offers
routing by calling and called number, time of day, day of week, and jurisdictional
routing. This allows FUSE 3 to offer a variety of routing products to their customers,
including multi-office connections and “Find-Me” services.
THE TRANSNEXUS
EXPERIENCE
HOW IT WORKS
“Overall we couldn’t be
happier with TransNexus.
Their support response and
product offering just cannot
be beat.”
-Michael Greco, CTO,
FUSE 3
CONTACT US
75 5th Street NW, Suite
333, Atlanta, GA 30456
1 .404.536.6060
[email protected]
www.transnexus.com
1 . SIP INVITE from a Customer device to the Acme Packet Net-Net Session
Director session border controllers.
2. Acme Packet Net-Net Session Director sends SIP INVITE to OSPrey server.
3. OSPrey makes an optional query to the number portability database (NPAC)
if it is present to determine if the called number has been ported and to get the
Location Routing Number (LRN). If an LRN is returned, the call will be routed
using the LRN.
4. The OSPrey server returns a SIP 300 Redirect message ordered list
destination devices to the Acme SBC.
5. The Acme Packet Net-Net Session Director sends a SIP INVITE to the first
destination (5a). If the call attempt fails, Acme Packet’s SBC retries the call to
the next destination (5b). This process continues until the call is completed or
until the call has been attempted to all destinations.
6. The Acme Packet’s Net-Net Session Director sends RADIUS Call Detail
Records (CDR) to the OSPrey server for each call attempt.
*The same process works in reverse for inbound calls in a DID call scenario.
THE RESULTS
With the TransNexus system in place, FUSE 3 was able to complete their portfolio of
IT solutions with VoIP telephony. “Since using TransNexus and Acme Packet to
implement our hosted PBX offering, we are able to provide an end to end solution
customized to their individual business needs.” said Greco.
TransNexus reporting solutions monitor the FUSE 3 network in near-real time, 24
hours a day, 7 days a week. According to Greco, “The TransNexus solution we
implemented has allowed us to dramatically increase profits and customer
satisfaction by providing us complete insight into call flow, call quality, and traffic
patterns.”