IP-Tube GT1-Ecan
IP•Tube GT1-Ecan
SIZE
9" (L) x 7.3” (W) x 1.50” (H)
Image is not available

T1 Circuit Extension Over IP

• ROI Measured in Weeks
• On-board Echo Canceller
• Exploits Efficiency of IP/Ethernet
• Supports Legacy Switches/PBX
• Crystal Clear Voice across Internet

DLT1_ecanbackweb.jpeg - copy
Image is not available

Rear Panel: 12/30 VDC with Negative 48 VDC Screw Term Adapter (option)

Rack Mount and Power Options
Image is not available

Rack Mount and Power Supply Options

GT1_ecanbackweb.jpeg
Image is not available

Rear Panel: 12/30 VDC ADAPTER (option)

GT1_ecanback Green
Image is not available

Rear Panel 12/30 VDC with Screw Term Adapter (option)

GT1_ecanback Neg48
Image is not available

Rear Panel 12/30 VDC with Negative 48 VDC Screw Term Adapter (option)

previous arrow
previous arrow
next arrow
next arrow

IP•Tube GT1-Ecan

Echo Cancellation

IP•Tube GT1-Ecan

T1 Circuit Extension Over IP

- ROI Measured in Weeks -

- On-board Echo Canceller -

- Exploits Efficiency of IP/Ethernet -

- Supports Legacy Switches/PBX -

- Crystal Clear Voice across Internet -

Product Image

SIZE

9" (L) x 7.3” (W) x 1.50” (H)

Overview

T1 Voice Over IP

The IPTube GT1-Ecan encapsulates full and fractional T1 circuits into IP packets. T1 Over IP connections provide for the interconnection of Channel Banks, PBXs and Telecom Switches via LANs, WANs, MANs, Satellite and Wireless Ethernet.

The IPTube GT1-Ecan ships with four T1 interfaces with Echo Cancellation and two 10/100 BaseT Ethernet Interfaces. 

Echo Canceller

The IPTube GT1-Ecan has four independent integrated T1 Echo Cancellers that cancel up to 64 milliseconds of Far End echo.  The Echo Canceller DSP detects and cancels echo at the far end so that the interconnecting packet’s network delay and jitter has no impact on echo. The echo canceller meets ITU-T G.164, G.165 and ITU-T G.168 requirements for echo cancellation.

Echo is one of the most important factors that affects voice quality. The primary source of echo is the impedance mismatch at the hybrid that links a 2-wire analog loop to a 4-wire digital trunk. Echo Cancellation is essential for T1 circuit emulation that involves voice connections to the PSTN and delay in excess of 20 milliseconds. Packet networks that traverse an intranet or internet backbone can easily exceed 20 milliseconds. The IPTube's Echo Cancellation provides the elasticity to support high quality voice connections across networks with significant delay and packet jitter.

The primary purpose to employ T1 Circuit Over Packet technology is to reduce or ideally eliminate the T1 leased circuit charges.  For an enterprise utilizing their existing intranet is very compelling. Typically these intranets are already handling a very demanding load with significant packet jitter.  The IPTube Echo Cancellation has jitter buffering greater than 100 milliseconds which is more than enough for the majority intranets and beyond the signaling delay tolerance of Voice PBX or Switch.

Choosing Wireless Ethernet for the transport of T1 Circuit Emulation is very popular since the circuit lease charges are eliminated.  Commercial Off the Shelf Wireless Ethernet radios do not perform well with full duplex T1 circuit emulation packet traffic that is configured to keep the round trip less than 20 milliseconds.  The IPTube's Echo Cancellation has the elasticity (Jitter Buffering and reduced Packet Frequency) to support the use of Wireless Ethernet for T1 Circuit Emulation.

Transparent Interconnect

The IPTube GT1-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

Robbed Bit, PRI ISDN, SS7, and Proprietary out of band are 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.

Signaling Support Diagram

IP•Tube GT1-Ecan Standard Features

Dual LAN Interfaces

The IPTube GT1-Ecan'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. 

Assured Delivery Protocol

In order to assure high quality communications over links with intermittent or noisy performance, such as Wireless Ethernet. The IPTube GT1-Ecan employs Engage’s robust Assured Delivery Protocol with the following benefits:

  • Packet out of sequence detection and re-sequencing
  • Lost packet retransmission with configured delay

IP•Tube GT1-Ecan Optional Features

Protector OPTION -PRO

The Protector option provides for automatic protection of the T1 circuit over independent IP packet routes. After conversion of the T1 circuit into IP packets, two identical packet streams are created. These duplicate packet streams are used to provide redundant IP connectivity to the remote location in either “Always-On” or “On-Demand” switch over modes.

The need to Protect Critical Communications is in high demand for the following applications:

  • Public Safety Network Redundancy for Police, Fire and Medical
  • Auto Recovery for Military Communication
  • Delivering on Service Level Agreements
  • Resilient Cellular Backhaul

Always-On

In “Always-On" mode, the Protector sends two identical packet streams simultaneously on the LAN1 and LAN2 ports of the local IPTube GT1-Ecan-Pro. The remote unit monitors both LAN1 and LAN2 incoming traffic and on a packet by packet basis selects the best packet to use for conversion from IP back to T1. In most cases, switching of the receive packet source between LAN1 and LAN2 can be done without T1 circuit interruption.

Always-On Diagram

On Demand Protection

In “On-Demand” mode, the Protector only sends the duplicate packet stream over the second IP connection (LAN2 of the IPTube) if a failure is detected on the first IP connection. “On-Demand” connections can be used for cost savings or bandwidth reasons. For example, the expense associated with a backup IP Satellite connection for a full T1 (non-optimized T1 over IP requires 2.5 megabits per second) would dictate transmitting duplicate packets only during a failure condition.

On Demand Diagram

Alternator Load Balancing Option -ALT

The IPTube GT1-Ecan 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.

Lossless Data Compression Option -C

The IPTube GT1-Ecan 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 IP•Tube GT1-Ecan-C models)

Compression Diagram

Applications

Far End Echo Cancelling

IPTube GT1-Ecan utilizes Digital Signal Processors that detect and cancel echo at the far end so that the packet network delay has no impact on echo. The echo canceller samples the voice signal, estimates and removes the echo, leaving the original speech. The linear digital signal processor (DSP) models the echo and performs the main echo cancellation task. A non-linear DSP processor is then optimally employed to subtract out any residual echo or reflected noise components.
Echo is one of the most important factors that affects voice quality. The presence of echo depends on both echo level and echo delay. The primary source of echo is the impedance mismatch at the hybrid that links a 2-wire analog loop to a 4-wire digital trunk. The hybrid is not completely efficient in carrying the electrical energy and a certain amount of the electrical energy, or voice signal, is reflected back and may be perceived as echo.

Occasionally, acoustic feedback of certain phones also causes noticeable echoes. These sources of echo are able to be cancelled by the human brain as long as the time between our speech and the echoed speech is not greater than 32 milliseconds.

Far End Echo Cancelling Diagram

Engage's T1 Over IP products have a minimum delay configuration, 1 millisecond packetization and 4 packet buffering, which introduces a delay of 5 milliseconds. The amount of delay introduced by the packet network depends upon its switching times, packet processing, packet jitter, transmission, loading and quality of service configuration.

For example a network connection that utilizes Gigabit Ethernet switches, which introduce delays in the microseconds, does not require echo cancellation. Wide Area Networks that traverse an intranet or internet backbone have varying degrees of delay which can easily exceed 28 milliseconds. Total round trip delays in excess of 32 millisecond makes echo perceptible.
The IPTube’s Echo Cancellation provides the elasticity to support clear connections across networks with significant delay and packet jitter.

T1 Private Line Services over IP

Businesses, Education Districts, Universities, National, State and Local Government, incur significant recurring monthly costs for rigid-bandwidth leased lines used only for the interconnection of PBXs and Telecom switches.

The IPTube GT1-Ecan provides enterprises with the ability to interconnect their existing phone systems over flexible bandwidth lines that are used to carry data, voice, and video. The Voice Only Leased Line Toll charges assessed by long distance and local carriers are eliminated or dramatically reduced by transporting voice traffic across LANs and WANs.

LANs

The most compelling option for the interconnection of T1 based systems is when it can be accomplished over a Local Area Network. The deployment of Fiber based LANS such as FDDI and Gigabit Ethernet, provides organizations with high performance and high quality bandwidth that is especially well suited for the interconnection of PBXs and Telecom Switches.

WANs

Wide Area Networks that have sufficient bandwidth and Quality of Service provisioning result very significant cost savings especially for Multinational Corporations. The IPTube GT1-Ecan with loss less data compression, detects idle and redundant data within each voice circuit resulting in a 56 to 1 bandwidth savings. WAN bandwidth is not consumed by silence or redundant samples.

 

Broadband Service Providers

Companies, that are able to provide IP Ethernet access networks generate new revenue by offering traditional T1 leased line and private line services, such as:

Cable Operators

Cable operators connect traditional T1 leased line and private line services over their hybrid fiber coax (HFC) cable networks. HFC Cable network latency typically requires echo cancellation.

Metropolitan Area Networks

Metropolitan carriers with IP or Ethernet access networks deliver traditional leased line and private line services.

Utilities

Utilities generate new revenue by offering traditional T1 leased line and private line services over their fiber or power line networks.

Incumbent Carriers

Telcos reduce costs by delivering profitable leased and private line services over their flexible Ethernet infrastructures.

CLEC PBX Back Haul

The IPTube GT1-Ecan provides CLECs with a way to back haul T1 DS0s from a customer’s phone systems over their Internet connection. The back hauled DS0s are connected to the CLECs phone switch for connection to the Public Switched Telephone Networks. Local Exchange Carriers are able to offer an economical alternative to the local Phone Company.

Wireless Ethernet

Connecting phone systems across a wireless Ethernet connection has a return on investment that is measured in weeks. Eliminating the wired connection for the T1 based communication equipment is made possible with the IPTube’s T1 Over Ethernet capability.

Echo Cancellation enables Wireless connections to support T1 Over IP real time connections in a point to point or point to multipoint configuration with the elasticity required.

Specifications

LAN Network Interface
  • Two 10/100BaseT Full/Half Ethernet
  • Autonegotiation or Configurable Speed and Duplex
LAN Network Protocols Supported
  • IP, TCP, UDP, ICMP
  • Assured Delivery Protocol 
  • DHCP
  • DNS Address Discovery
  • Dynamic DNS
Echo Canceller
  • Voiceband Echo Cancelling according to ITU G.165 and G.168
  • u- and A-Law coding according to ITU G.711
  • 32 channels with end echo path delay of less than 63.75 ms
T1/Fractional T1 Specifications
  • Four T1 Port Model
  • Connects directly to T1 or crossover to DS1
  • Framing - ESF or D4
  • Coding - B8ZS or AMI
  • Supports DS0 assignments from 1 to 24
  • Non Contiguous Configuration x-y,z Supported
  • Signaling: Robbed Bit; PRI; Proprietary
T1 Over IP Protocol
  • TDM Over IP
  • Circuit Extension Services Over IP - CESOIP
  • HDLC Over IP - HDLCOIP
  • Frames Per Packet Configurable 8 to 56
  • Low Latency Mode: 1 millisecond 8 T1 frames
  • Max Payload Mode: 7 millisecond 56 T1 frames
  • Comprehensive Clocking: Internal, Network, Adaptive
Lossless Data Compression Option
  • Detects idle and redundant data within each DS0
  • Configurable Silence Detection Range
  • Interconnect bandwidth is not consumed by silent or redundant data
  • Compression settings from 8 to 1 to 56 to 1
TFTP Online Upgrade Capable (FLASH ROMs)
  • IPTube is fully operational during upgrade
Quality of Service Support
  • IP Type of Service (TOS) CLI configurable
  • IANA Registered UDP Port 3175
  • 802.1p/q mac level prioritization
Regulatory
  • CE
  • Safety -IEC60950
  • EMC - CFR 47 Part 15 Sub Part B:2002, EN55022: 1994 + A1 & A2, EN55024, ICES-003 1997, CISPR 22 Level A 
  • Telecom Part68 
Management
  • Secure Socket Shell - SSH
  • Telnet support with Edit and Paste Template Files
  • Console Port for Out of Band Management
  • SNMP support (MIB I, MIB II) with configurable traps
  • Remote config., monitoring, & reset
  • Telco Diagnostics: Local Loop, Remote Loop 
Dimensions
  • 9" (L) x 7.3 ” (W) x 1.50” (H) 
Rear Panel/Power
  • 12-24 VAC/VDC, 1.0A. International Adapters Available
  • Optional -48V 0.25 Amp

Ordering Information

Chassis Slot Card: IP-Tube GT1-Ecan

Rack Mount & Power Supply Options:

BlackGate RS232 Rear
BlackGate RS232 Rear

Part No.

Description

301-1544-04

IPTube GT1-Ecan, 4 T1 Ports - Echo Cancellation module has 4 T1 interfaces

CH-301-1544-04

Chassis Slot Card: IPTube GT1-Ecan, 4 T1 Ports - Echo Cancellation module has 4 T1 interfaces

303-1544-04

IPTube GT1-Ecan, 4 T1 Ports w/ Lossless Data Compression Option

CH-303-1544-04

Chassis Slot Card: IPTube GT1-Ecan, 4 T1 Ports w/ Lossless Data Compression Option

Optional Features

Optional Features

SWT

ROHS compliant materials and processes, Restriction of Hazardous Substances no Pb

PRO

Protector Option, Fault Tolerant Network Interconnect. The protector option utilizes the second LAN interface as a redundant path for the interconnection of the IP encapsulated data. The extension of the IP-Tube has a fault tolerant link that is configured to always on, or with switch over criteria.  Learn more.

ALT

Alternator Load Balancing Option, Load Balancing Inverse Mux

Power Supply Options

Power Supply Options

094-2418

90-220 VAC Universal International/Domestic Adapter

094-2418-R

DUAL REDUNDANT, 90-220 VAC Adapter

094-N48V

Internal Power Module, -48 VDC Screw Terminals

094-N48V-02

DUAL REDUNDANT, -48 VDC Screw Terminals

094-1500

WIREDC Option, +24 VDC Screw Terminals

094-WIREDC-R

DUAL REDUNDANT, +24VDC

Rack Mount Options

Rack Mount Option

095-1000

Rack Mount Kit - for single 7" products (Fits both 19" and 23" racks)

095-2000

2 unit 19" x 1RU Rack Mount Kit for 7" products

094-WIREDC-R

DUAL REDUNDANT, +24VDC

095-3000-RTANG

Right Angle Wall Mount Bracket Kit

So What's Next?

WE’RE READY!

Engage Communication
9565 Soquel Drive. Aptos, CA 95003
This email address is being protected from spambots. You need JavaScript enabled to view it.
This email address is being protected from spambots. You need JavaScript enabled to view it.



Telephone: 1-831-688-1021
Toll Free : 1-877-ENGAGE4
 
 
Designed, Fabricated, and Assembled
in America 
Supported Worldwide