Intelligent E1 Channel Bank with Answer Supervision based on Voice Activity Detection

Product Description

Aries introduces new intelligent E1 Channel Bank, VCL-CB with Voice Activity Detection (VAD) to provide voice activated answer supervision and disconnect supervision to connect VoIP (Voice over IP), Voice over Frame Relay and Voice over ATM networks to analog PSTN (POTS) lines that do not provide any

type of answer supervision / battery reversal functions.

The interface to the analog PSTN (POTS*) lines have been ruggedized to provide complete protection against line card failures which occur from induced voltages from AC power lines and lightening strikes and difficult field conditions.

Intelligent E1 channel bank is especially designed for the VoIP (Voice over IP), Voice over Frame Relay and Voice over ATM network call-termination and long distance communications market that will terminate calls directly to the analog PSTN lines. The channel bank solution provides a cost-effective platform to convert upto 30 dial-up, analog (PSTN) voice circuits to a digital E1 interface to connect to VoIP (Voice over IP), Voice over Frame Relay and Voice over ATM Gateways.

Aries years of experience in providing telecom transmission solutions to customers worldwide, located in over 30 countries, has been build in to providing a cost-effective - yet an intelligent E1 channel bank solution.

For long distance traffic termination on PSTN lines that "Support", or "Do Not Support" "Battery Reversal / Polarity Reversal" (Answer Supervision).
Voice Activity Detection (VAD) to provide spoof “Answer Supervision”
To provide “Disconnect Supervision” to disconnect hung PSTN lines.
Provides complete line protection against difficult field conditions.
Also used in conventional applications to deliver voice over an end-to-end E1 (radio / fiber / HDSL) links.

The VCL-CB, E1 Channel bank offers all types of analog interfaces including FXO, FXS and 2W/4W E&M interfaces, that may be required to connect to an E1 digital interface of a VoIP (Voice over IP), Voice over Frame Relay and Voice over ATM Gateway.

The E1 Channel Bank shall interface to the E1 port of any VoIP Gateway / Switch / Server / PBX using R2 CAS (R2 Digital) Signaling (R2 Channel Associated Signaling) as per ITU-T Q.421 / Q.422 recommendations, to connect up to 30 analog interfaces to an E1 port.

The VCL-CB intelligent Channel Bank is especially useful for providing an analog interface to the latest servers from the following companies:

Cisco AS2600 Voice over IP servers
Cisco AS3600Voice over IP servers
Cisco AS5300 Voice over IP servers
Cisco AS7200 Voice over IP servers

Nuera 200 Voice over IP servers
Mockingbird Voice over IP Servers
Lucent ITS-SP, Voice over IP server
Lucent PortMaster 3

Please consult factory for the complete list of compatible CISCO ASXXXX VoIP Servers.

E1, Channel Bank
Remote Access Server / VoIP Gateway Application

The cable plant of most telecom service providers is not designed to deliver E1 services to customers in most parts of the world. The VoIP Gateway / Switch / Server / PBX with an E1 interface, thus, in such cases can only be accessed through dial-up, 2 wire analog lines, the only available link for connecting the Exchange (Central Office) to the Corporate PBX Networks and VoIP (Voice over IP) Gateways.

VCL-CB, intelligent E1 Channel Bank is especially useful in countries, where the cable plant is not equipped to deliver digital E1 services to the customer, who are using the next generation access equipment, which can only connect to an E1 interface.

The E1 Channel Bank solution is available in two versions:

The first E1 channel bank (VCL-CB-BR™) provides answer supervision when the called party answers, upon receiving an actual battery reversal of the PSTN analog line.

Both, the line connect and disconnect functions are provided using the actual battery reversal function of the PSTN analog line (e.g. much like your coin pay-phones).

Available with FXO, FXS and E&M interfaces.

The second E1 Channel Bank (VCL-CB-INT) is an intelligent E1 Channel Bank that provides the metering function using Voice Activity Detection (VAD) to provide voice activated "answer supervision" and "disconnect supervision". The VCL-CB-INT, intelligent E1 Channel Bank uses a sophisticated DSP algorithm to "listen" to the PSTN line for "voice activity" and will provide "answer supervision" information to initiate the metering process when the CALLED PARTY answers. It will also "listens" to the line to determine the end of a call (silence) to provide line the "disconnect supervision".

The VCL-CB-INT™ E1 Channel Bank is available with FXO interfaces which shall connect to the analog PSTN (POTS*) lines from the local Exchange / Telco / Switch.

* POTS: Plain Old Telephone Service

FEATURES:

Used for terminating long distance traffic on PSTN lines that "Support" or "Do Not Support" "Battery Reversal / Polarity Reversal" (Answer Supervision).
Uses sophisticated DSP algorithms to provide Voice Activity Detection (VAD) to provide "Answer Supervision" to initiate metering and "Disconnect Supervision" feature to "Disconnect hung / stuck PSTN lines".
Ruggedized equipment design.
Provide complete protection against the line card failures occurring from induced voltages from AC power lines and lightening strikes and other difficult field conditions.
VF (Voice Frequency) specifications are in accordance with G.712, ITU-T recommendations to provide clear voice.
Ideal choice for long distance call / traffic termination operators, corporate and ISP customers, who wish to connect their fully digital networks to the PSTN, through the available analog dial-up PTT lines.
Available with an E1, 2Mbps interface or a fractional E1 interface (to even start service with less than 10 lines).

HIGHLIGHTS:

Ideal for long distance traffic termination.
Also used in conventional applications to deliver voice over an end-to-end E1 (radio / fiber / HDSL) links.
Available with FXO, FXS and 2W/4W E&M customer interfaces.
Compliance to all the relevant ITU-T recommendations.
Modular, 3U high, compact construction provides easy maintenance.
Plug & Play - easy to install equipment.
Extensive set of alarms
Available with easy to use Windows™ based Graphical User Interface.
Synchronization to different user selectable clock sources.
Remote Access through TCP/IP (for remote configuration and monitoring - available as an optional extra).

Related Links:

Aries Telecom
10842, N 127th Place
Scottsdale, AZ 85259, U.S.A.
Phone: 1-480-816-8672 Fax: 1-480-451-6693
E-mail: info@ariestelecom.com
Website: http://www.ariestelecom.com

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