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250 Million Phone Numbers And Counting |
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Written by Adam Gosling
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Friday, 23 March 2007 |
VoEX, an IP managed-service provider in California has announced its
SuperRegistry has reached more than 250 million IP-addressable phone
numbers, the largest such registry of any wholesale or retail VoIP
carrier in North America, possibly the world.
Part of the company's peering infrastructure, the SuperRegistry is a
carrier-grade ENUM database that maps telephone numbers to IP
destinations to deliver any-to-any connectivity, from VoIP to PSTN
users and vice versa.
The SuperRegistry peering solution also supports the development of
advanced IP-based applications - including enhanced directory,
mobility, location and presence services -- that can bridge the voice
and data service worlds.
Service providers which are registered with the SuperRegistry can gain
managed IP access to each others' endpoints enabling them to terminate
traffic - TDM, IP, and hybrid combinations of both -- for each other at
costs below local tandem rates. They can also enjoy the incremental
benefit of global VoIP reach while avoiding any capital expenditure and
eliminating some PSTN database query charges.
VoEX's customer base includes wireless and wireline carriers, MSOs,
cable operators, VoIP service providers, large enterprises,
universities, and e-communities like Yahoo and LinkedIn. The
SuperRegistry currently includes a significant amount of North
America's wireless telephone numbers, and is expected to reach
additional wireless phone numbers and a majority of wireline numbers by
the end of 2007.
How SuperRegistry Works: Peering Example
In a sample VoEX call flow, when Sidney dials Bradley on a traditional
PSTN line, the call is routed to the nearest bridging gateway, whether
owned by VoEX's carrier customer or supplied and remotely managed by
VoEX. The gateway converts both voice media and signaling into SIP
packets before forwarding the call into VoEX's network.
Querying its SuperRegistry ENUM database, VoEX finds the IP address of
Bradley's network entry point or gateway and routes the call there. If
his phone is IP-based, Bradley's IP network then consults its own
database to complete the call. If not, the call is forwarded to the
gateway that serves his TDM phone.
In an IP-to-IP call, this lookup and routing not only avoids PSTN
transport entirely, it routes calls independently of the routing tables
and SS7 signaling used by traditional telcos.
Records of all phone numbers and their associated network entry points
are stored in VoEX's registry. To keep this information current, all
additions and changes are regularly distributed throughout the VoEX
network by its internal peering grid. Peers can thus connect through
VoEX, which can transcode the industry's widest range of signaling
protocols (SIP, H.323, MGCP) and codecs.
The VoEX Peering Triple Play
Established in 2002, VoEX uniquely combines its dynamic address
registry with a robust transport network and a global, peering
infrastructure of media and signaling gateways, routers, softswitches,
session border controllers, and other network elements.
Taken together, this combination saves VoEX's customers money by
allowing them to carry as many calls as possible, as far as possible,
over IP. They save call setup times and transport costs otherwise spent
on PSTN-based bridging hops between IP networks. They benefit from
VoEX's intelligent, least-cost routing and carrier-grade voice quality
and reliability. When end points are TDM-based, customers save on
termination fees; long PSTN-based termination legs are shortened by
using the IP off-ramp (gateway) closest to the called device.
VoEX's managed services proposition offers a no-capex entry into
IP-to-IP calling. Its registry of phone numbers, continually updated
with local number portability feeds and grown with additional peers,
provides over one million routes for off-net interconnection, chosen
with least-cost or best-quality priorities.
VoEX's proprietary any-to-any interconnectivity technology bolts onto
customers' existing infrastructure of SS7/C7 signaling, ISDN, and such
non-standard VoIP devices as Asterisk and SER servers.
In the longer term, end-to-end VoIP connectivity opens the door to
applications and services that PSTN transport hops cannot support.
These might include rich content, collaboration and presence-based
communications applications, push-to-talk, gaming, video, and media
services yet to come. The multi-channel capability of ENUM also has the
potential for registering multiple endpoints and subscriber preferences
under one registration record, providing a path for emails, text
messages and faxes as well as voice calls to any of several devices.
In launching and growing its SuperRegistry, VoEX enjoys the be
top-tier customers include Qwest, Global Crossing, VoiceOne, USA
Datanet, Point One, Grande Communications, Broadwing(Level3), Merit
Network, Interactive Intelligence, Talk America, Transcom, Internet2,
University of Michigan, Northwestern University, and Georgetown
University. By purchasing from VoEX, these customers gain the capacity
to deploy VoIP, reduced operating costs, faster time-to-market and
greater profitability.
www.voex.com
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