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The Total Access 900/900e Series of T1
and Multi-T1 IP Business Gateways are designed for carrier
Ethernet and SIP/MGCP Voice over IP (VoIP) networks. These
products feature all of the same robust routing and voice
features of the widely deployed Total Access Integrated Access
Devices (IADs), along with a host of new features and
functions that enable costeffective, reliable IP service
delivery. These devices use the ADTRAN Operating System (AOS)
to simplify management and administration. Multiple models
offer flexibility for varied applications from PRI delivery
and trunking services to Hosted IP PBX offerings. The Total
Access 900 Series offers a single T1 network interface, while
the Total Access 900e Series offers up to four T1s. User
interfaces include up to 24 FXS ports for analog voice
delivery, an integrated DSX-1 port for PBX connectivity (T1
CAS or PRI), and one (two for 900e) 10/100Base-T Ethernet
interface(s) for access to the Total Access 900/900e router or
WAN access. The Total Access 900/900e Series can be coupled
with a NetVanta Power over Ethernet (PoE) switch to provide
connectivity to a variety of network devices and personal
computers, as well as to power IP phones and Wireless Access
Points (WAPs).
VoIP Gateway
The Total Access 900/900e Series utilizes SIP or MGCP for VoIP
applications, providing interoperability with industry-leading
softswitches, feature servers, and gateways. Acting as a
gateway, these devices convert IP signaling from the carrier
into traditional TDM analog and digital voice services. This
functionality allows the Total Access 900/900e Series to
deliver voice services to both IP phones and traditional
telephony equipment simultaneously. For customers implementing
a hosted PBX or IP Centrex service, the Total Access
900/900e Series is ideal for providing customers additional
analog ports necessary to support their remaining analog
phones, fax machines, or modems. The Total Access 900/900e
Series supports many popular calling features such as caller
ID, call hold, forward, transfer, and call waiting. Voice
Activity Detection (VAD) and silence suppression are supported
and the flexible design allows the Total Access 900/900e
Series to support additional CODECs as the market requires.
Remote Survivability
In addition, the Total Access 900/900e Series can act as a
registrar and Back-to-Back User Agent (B2BUA) or as a
SIP-transparent proxy to facilitate remote survivability and
NAT traversal. In the event of a service interruption on the
wide area network or if the carrier’s call agent were to
become unavailable, calls may continue locally at the customer
premise between IP based or analog phones.
QoS,
Security, Routing, and Voice Quality Monitoring
The Total Access 900/900e Series uses the AOS to provide a
stateful inspection firewall; NAT; DHCP server/client; and
feature-rich, standards-based, IP routing functionality
supporting BGP, OSPF, and RIP routing protocols. Inherent QoS
methods ensure appropriate classification and prioritization
of VoIP traffic. These methods include Low Latency Weighted
Fair Queuing, class based weighted fair queing, support for
Differentiated Services (DiffServ) protocol, Frame Relay
Fragmentation (FRF.12), and Frame Relay traffic shaping. VQM
captures Mean Opinion Score (MOS), jitter, delay, and packet
loss statistics necessary to troubleshoot VoIP calls over the
WAN to help ensure superior call quality.
Management
The
Total Access 900/900e Series can be remotelymanaged by
either the ADTRAN n-CommandŽ MSP or n-Command Enterprise
Edition management platforms. ADTRAN n-Command platforms offer
the ability to discover devices, make mass configuration
changes or firmware upgrades, backup/restore configuration,
and generate inventory reports for asset management. The
ADTRAN n-Command MSP also offers VoIP VQM and reporting, as
well as an industryleading, easy-to-use, Graphical User
Interface (GUI). Total Access 900/900e products are housed in
a rugged metal enclosure; available in wallmount, rackmount,
and desktop mountings; and offer a battery backup system for
up to eight hours of uninterrupted service upon a
customer-site power outage. Total Access 900/900e products are
backed by an industryleading 10-year warranty, free firmware
updates, and ADTRANs world-class technical support.
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