Solution Overview

The IP•Tube DLT1-Ecan encapsulates full and fractional T1 circuits into IP packets. T1 Over IP connections provide for the interconnection of PBXs and Telecom Switches via LANs, WANs, MANs, Satellite and Wireless Ethernet. The IP•Tube DLT1-Ecan ships with two T1 interfaces with either 1 or 2 active and two 10/100 BaseT Ethernet Interfaces.

Technical Specification
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 IP•Tube DLT1-Ecan

T1 Voice Over IP
The IP•Tube DLT1-Ecan encapsulates full and fractional T1 circuits into IP packets. T1 Over IP connections provide for the interconnection of PBXs, Channel Banks and Telecom Switches via LANs, WANs, MANs, Satellite and Wireless Ethernet.

The IP•Tube DLT1-Ecan ships with two T1 interfaces with either 1 or 2 active and two 10/100 BaseT Ethernet Interfaces. The inactive T1 Port can be activated via a software-based license key for a pay as you grow option.

Echo Canceller
The IP•Tube DLT1-Ecan has an integrated T1 Echo Canceller that cancels up to 64 milliseconds of Far End echo. The echo canceller meets ITU-T G.164, G.165 and ITU-T G.168 requirements for echo cancellation.

Transparent Interconnect
The IP•Tube DLT1-Ecan’s transparent operation maintains the proprietary signaling required to support PBX features such as call conferences, call forwarding, caller ID and SS7.

Signaling Support
PRI ISDN, SS7, ESF, D4, SLC-96, Proprietary out of band, and robbed bit signaling is supported. Echo cancellation is automatically disabled during FAX and Modem communications. Transparent support for Modem or Fax. Voice quality is not compromised. Legacy phone equipment investment is preserved.

  IPTube DLT1-Ecan Standard Features
Assured Delivery Protocol
In order to assure that circuits are extended over connections with fault tolerance the IP•Tube DLE1-Ecan has as a standard capability an Assured Delivery Protocol that supports high performance full duplex real time data. The protocol has packet out of sequence detection and re-sequencing, duplicate skipping, and real time lost packet retransmission with configured delay.

Dual LAN Interfaces

All IP•Tube•DLT1-Ecan 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

VPN Network Management
Interconnecting the IP•Tube DLT1-Ecan through a Virtual Private Network with sufficient real time committed information rate ensures that the required quality of service is provisioned. The second Ethernet interface provides a management port. Each LAN interface features independent IP network configurations.
Lossless Data Compression OPTION - C
The IP•Tube DLT1-Ecan-C continuously detects idle and redundant data within each T1 Voice circuit resulting in as much as a 56 to 1 bandwidth savings.

TDM over IP WAN bandwidth is not consumed by silent or redundant circuits.

Note: Compression only supported with IPTube•DLT1-Ecan-C models.

DS0 Timeslot Multiplexor OPTION -MUX
The IP•Tube DLT1-ECAN-MUX maps DSOs from a central site to as many as 24 remote locations via an IP/Ethernet connection. Get maximum use of expensive DS1 interfaces on PBX, Channel equipment and datacom gear. Also provides Virtual DACS Over IP capability. Mesh DS0s one-to-many or many-to-many.

T1 Switch OPTION - SWT
The T1 switch option enables the T1 Port 1 interface to be manually switched between a T1 circuit connected to T1 Port 2 or to T1 Over IP packets connected with the remote IPTube.

            • Remote Control of T1 Connection to Telco or T1overIP
            • Installation performed by a single Technician
            • Quick reversion to Telco during debug of T1overIP

T1 Link Protector OPTION -LPT
The T1 Link Protector provides an automatic back up for T1 circuits with T1 Over IP connecting via Wireless Ethernet, Gigabit Ethernet, IP Satellite Services, xDSL,....

• Automatic Protection Switch for T1 Circuit
• Deliver on Stringent Service Level Agreements
• Back Up for Mission Critical Connectivity
• Disaster Recovery for Public Safety Networks

Alternator Load Balancing OPTION -ALT
The IP•Tube DLT1-ECAN-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.

Full T1 Connection Across Two ADSL Lines
The IP•Tube DLT1’s two Ethernet interfaces are able utilize two ADSL Ethernet Modems, that have opposite high speed direction, to transport a T1’s symmetrical bandwidth. 

Rate Limiter OPTION -RLM
The IP•Tube DLT1-ECAN-RLM Rate Limiter option limits the WAN bandwidth utilized by the LAN1 to LAN2 bridge. Rate Limiting the traffic enables the reservation of the WAN bandwidth for time the sensitive T1 Over IP real time connections. Great for Wireless WAN T1 applications. Rate Governing is only applied in the direction to the WAN to minimize latency. The data rate governor utilizes Time Division Multiplexing based clocking to provide for Nx64, NxE1 and NxFT3 bandwidth regulation that is configured from 64 kilobits up to 45Mbits.

Protector OPTION -PRO
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.

Protector OPTION -EnPRO
The Enhanced version has configuration parameters that enable a secondary packet path with high relative delay to primary path be synchronized. The packet sequence delay synchronization ensures concurrent redundancy with a high degree of error tolerance. Error free operation is accomplished when a primary or secondary Packet is not received and a redundant duplicate packet is available. The IPTube also supports the transmission of multiple duplicate packets to support Mission Critical Circuit extension with redundancy that is only limited by the bandwidth provisioned.


Pay-As-You-Grow Field Upgrades
The IP•Tube DLT1 Ecan are designed for Pay-As-You-Go growth from 1 T1 to 2 T1s. Customers can elect to economize initial installations, buy purchasing a single active T1 port and enable the additional T1 Port via a software-based license key. NOTE: Each T1 Port has its own DSP Echo Cancellation hardware that is installed during assembly so it is NOT possible to field upgrade.

Field Upgrade benefits are extended to our Industry-Best Loss less Data Compression. Just as T1 ports are field upgrade able, so is Loss less Data Compression. At any time, each T1 port on the IP-Tube DLT1-Ecan can be upgraded to Loss less Data Compression with a simple software-based license key installation. If you determine that your IP•Tube DLT1-Ecan is best deployed with Loss less Data Compression, your still in business with the per port field upgrade!
Rack Mount Kit
The IP-Tube family is ready for central office or data center environments with 19" and 23" Rack Mount Kits.
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