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Enable
One to Four T1 interfaces for T1 over IP Voice and Data
The IP•Tube QT1 is available with one to four T1 interfaces
and dual 10/100 BaseT Full/ Half Duplex Ethernet Interfaces. The
T1 interfaces have configurations that for provide independent
protocol, compression, packet sizing, buffering, clocking, framing,
coding and channel settings. Enable additional T1 Ports as needs
expand using a software-based license key. The protocols supported
are IPTube, CESoIP, and HDLCoIP.
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| IP•Tube
QT1 Standard Features |
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Transparent Interconnect
The IP•Tube QT1’s transparent operation maintains the proprietary signaling required to support PBX features such as call conferencing, call forwarding, caller ID and SS7. Legacy phone equipment investment is preserved. Transparent support for Modem, Fax, or Data circuits. Voice quality is not compromised.
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Assured Delivery Protocol
In order to assure high quality communications over links with intermittent or noisy performance, such as Wireless or Broadband over Power Line, the IP•Tube QT1 employs Engage’s robust Assured Delivery Protocol with the following benefits:
• Packet out of sequence detection and re-sequencing
• Duplicate skipping,
• Lost packet retransmission with configured delay.
Dual LAN Interfaces
All IP•Tube•QT1 models ship with dual 10/100BaseT Ethernet LAN ports. The dual Ethernet interfaces provide for:
• Management interface on LAN port 2 when LAN port 1 is connected to a VPN tunnel
• The LAN ports can be configured to support connections over 2 opposite ADSL links
• Alternator Option for load balanced SDSL interconnects
• Protector Option for Redundant Packet Path connections with Constant or Switch Over Criteria
Full T1 Connection Across Two ADSL Lines
The IP•Tube QT1’s two Ethernet interfaces are able utilize two ADSL Ethernet Modems, that have opposite high speed direction, to transport a T1’s symmetrical bandwidth. |
Service Quality Packet Prioritizing
The IP•Tube QT1 uses the Type of Service byte in the IP packets to prioritize the encapsulated T1 frames. The setting of the TOS byte can be used to ensure that the real time TDM data from the IP•Tube QT1 is ensured high priority. |
VPN Network Management
Interconnecting the IP•Tube QT1 through a Virtual Private Network with a sufficient real time committed information rate ensures that the required quality of service is provisioned. The IP•Tube QT1's second Ethernet interface provides a management port when the first Ethernet interface is connected to a VPN. Each Ethernet LAN interface features independent IP network configurations. |
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| IP•Tube QT1 Options |
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Lossless
Data Compression Option
The
IP•Tube-T1C detects idle/redundant data within each DS0
resulting in as much as 56 to 1 bandwidth savings. T1 over IP
bandwidth is not consumed by silent or redundant circuits. Management
of the IP•Tube T1 is accomplished with a Command Line
Interface that is accessed through a Console or Telnet connection.
Common templates provide for cut and Paste configuration.
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Alternator
Load Balancing Option
The IP•Tube QT1-ALT Alternator option alternatively sends the
IP packetized T1 frames on LAN 1 and LAN 2. The Alternator option
enables fractional and full T1 circuits to be split over two IP
WAN connections such as xDSL. The Lossless Data Compression option
can be combined with the Alternator option to minimize the bandwidth
required from the alternative paths. The cost of interconnecting
T1 communication systems across packetized xDSL is a fraction of
long distance leased T1 circuit costs. |
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Protector Option
The protector option utilizes the second LAN interface as a redundant path for the interconnection of the IP encapsulated T1 Circuit. The extension of the T1 circuit has a fault tolerant link that is configured to always on, or with switch over criteria.

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Pay-As-You-Grow
Field Upgrades
The IP•Tube QT1 are designed for Pay-As-You-Go growth from
1 T1 thru 4 T1s per IP•Tube QT1. Customers can elect to economize
initial network installations, by purchasing their IP•Tube QT1 with
a single active T1 port. As the network grows enable additional
T1 Ports via a software-based license key. Field upgrade benefits
are extended to our Industry-Best Lossless Data Compression. Just
as T1 ports are field upgradeable, so is Lossless Data Compression.
At any time, each T1 port on the IP•Tube QT1 can be upgraded to
Lossless Data Compression with a simple software-based license key
installation. If upon installation, you determine that your IP•Tube
QT1s are best deployed with Lossless Data Compression, you're still
in business with the per port field upgrade! |
Rack
Mount Kit
The IP•Tube family is ready for your most demanding central office
or data center environments. With the Rack Mount Kit, IP•Tube
products are easily installed in 19" and 23" racks. Easy
access to both front and rear sides facilitates technician maintenance
procedures. |