© VideoCentric Limited 2002 RADVision L2W-323 Gateway L2W-323 Gateway MCU-323 Multipoint Conference Unit L2W-323P Gateway VIU-323 Video Interface Unit.

© VideoCentric Limited 2002 RADVision L2W-323 Gateway Hardware Components V.35 Module 2 x V.35 (64K to 768K) Specify DTE or DCE Audio Transcoder 4 Simultaneous Calls G7.11 G.723.1 G.711 G.728 BRI Module 2 x ISDN Basic Rate 2B or BONDING 128K,256K (384K if additional module fitted)

© VideoCentric Limited 2002 RADVision L2W-323 Gateway Status LED’s - L2W-323 LANWAN 12341234 TestPwr Link Session WAN 1234 TestPwr Link Session LANFunction FRONT PANEL STATUS - GATEWAYS AFTER Y2K FRONT PANEL STATUS - GATEWAYS BEFORE Y2K

© VideoCentric Limited 2002 RADVision L2W-323 Gateway H.323 Addressing IP ADDRESS Endpoints may call directly to other endpoints using IP addresses or call indirectly through a gatekeeper. ALIAS Endpoints may establish a connection with other endpoints by using an alphanumeric alias which is translated to an IP address by a gatekeeper. E164 (Telephone Number) Endpoints may establish a connection with other endpoints by using a numeric value known as the E164 address. This must be translated by a gatekeeper into an IP address.

© VideoCentric Limited 2002 RADVision L2W-323 Gateway What is a Gatekeeper? A gatekeeper as defined by the ITU-T H.323 standards is an optional device that provides access and bandwidth usage controls for H.323 devices on an IP network. May also provide address lookup and translation, conference accounting, and site/conference status information. It is the key element in the network that allows endpoints to find other endpoints, gateways, and to joinmultipoint conferences

© VideoCentric Limited 2002 RADVision L2W-323 Gateway Registration, Admission & Status (RAS) REGISTRATION REQUEST (RRQ) H.323 EntityGatekeeper REGISTRATION ACCEPT (RCF) GATEKEEPER REQUEST (GRQ) GATEKEEPER CONFIRM (GCF) H.323 Entity Gatekeeper GATEKEEPER DISCOVERY ENTITY REGISTRATION

© VideoCentric Limited 2002 RADVision L2W-323 Gateway Gatekeeper Functionality (Address Translation) TERMINAL TYPEIP ADDRESSNAMETELEPHONE (E.164) Terminal1.1.1.1Reception100 Terminal1.1.1.2Sales101 H.323 EntityGatekeeper REGISTRATION ACCEPT (RCF) Type : Terminal Name : Sales Telephone : 101 Address : 1.1.1.2 GATEKEEPER ROUTING TABLE REGISTRATION REQUEST (RRQ)

© VideoCentric Limited 2002 RADVision L2W-323 Gateway Gatekeeper Functionality - The Zone H.323 TERMINAL H.323 TERMINAL H.323 TERMINAL GATEWAY MP/MC GATEKEEPER ROUTER ISDN/LAN/ WAN NETWORK ROUTER H.323 TERMINAL H.323 TERMINAL H.323 TERMINAL

© VideoCentric Limited 2002 RADVision L2W-323 Gateway Gatekeeper Functionality Supplementary Services BANDWIDTH MANAGEMENT Control of individual connection bandwidth, number of connections in the zone or total bandwidth utilisation within the zone BILLING MANAGEMENT Generation of statistical messages to a separate billing application after an H.323 call has been completed TELEPHONY SERVICES Call forwarding, forward on busy, Group Selection/Hunting CALL AUTHORISATION Password access, access based on diary activity, access based on endpoint priority

© VideoCentric Limited 2002 RADVision L2W-323 Gateway H.323 Point To Point Connection With Gatekeeper (Direct Call Signalling) SETUP (REQ) PROCEEDING (IND) ADMISSION (REQ)ALERTING (IND) Calling TerminalGatekeeper Responding Terminal ADMISSION (conf) ADMISSION (REQ) ADMISSION (conf) CONNECT (IND) IP ADDRESS ALIAS TELEPHONE IP ADDRESS ALIAS TELEPHONE

© VideoCentric Limited 2002 RADVision L2W-323 Gateway Gateways DE-PACKETISE T.12x G.7xx H.261/H.263 Encoded Signals Control UDP/IP TCP/IP TO NETWORK MULTIPLEXING G.7xx T.12x H.261/H.263 Control TRANSCODE H.323 CTL H.320 CTL Encoded Signals

© VideoCentric Limited 2002 RADVision L2W-323 Gateway H.323 Gateway Connectivity GATEWAY PSTN B-ISDN Guaranteed QoS LAN N-ISDN GATEKEEPER MP/MC H.323 TERMINAL H.323 TERMINAL V70 TERMINAL H.324 TERMINAL SPEECH TERMINAL H.322 TERMINAL SPEECH TERMINAL H.320 TERMINAL H.321 TERMINAL H.310 TERMINAL

© VideoCentric Limited 2002 RADVision L2W-323 Gateway PROCEEDING Calling TerminalGatekeeperGateway ACF SERVICE CODE IP ADDRESS ARQ ALERTING CONNECT ARQ SETUP PROCEEDING ALERTING CONNECT ISDN ISDN NUMBER Gateway Connection - H.323 to H.320 SERVICE CODE

© VideoCentric Limited 2002 RADVision L2W-323 Gateway Gateway Connection - H.320 To H.323 MULTI-SUBSCRIBER NUMBERING (MSN) A single ISDN B-Channel can be assigned several unique ISDN numbers. When any of these numbers is called, the call will arrive on that channel. The called number will be contained in the setup message which can then be used to identify the destination H.323 entity. ISDN SUB-ADDRESSING When an ISDN call is made, an additional set of digits may be added to the end of the ISDN number. This is the Sub-Address and will be delivered to the destination channel with this information in the setup message which can then be used to identify the destination H.323 entity.

© VideoCentric Limited 2002 RADVision L2W-323 Gateway INTERACTIVE VOICE RESPONSE (IVR) & DUAL TONE MULTI-FREQUENCY SIGNALLING (DTMF) A gateway can receive an incoming call from an H.320 terminal and establish the connection autonomously. Audio information may be sent to the H.320 terminal which can then be controlled in a menu fashion by DTMF tones from the H.320 terminal - this can either lead to a connection being established with an H.323 endpoint via the menu or a gathering of DTMF digits that can be used to identify a destination H.323 endpoint. TERMINAL CONTROL STRINGS (TCS-4) This method, once again, requires the Gateway to establish an autonomous connection with the calling H.320 terminal. During the capability negotiation phase, the H.320 terminal can send a TCS-4 string containing information that can be used to identify the H.323 destination. Gateway Connection - H.320 to H.323

© VideoCentric Limited 2002 RADVision L2W-323 Gateway H.320 to H.323 Using ISDN Services H.323 TerminalGatekeeperGatewayISDN SETUP ARQ ACF PROCEEDING SETUP ARQ ACF ALERTING CONNECT PROCEEDING ALERTING CONNECT ISDN Number Sub-Address IP ADDRESS E-164 IP ADDRESS E-164

© VideoCentric Limited 2002 RADVision L2W-323 Gateway H.320 to H.323 Using DTMF/IVR H.323 TerminalGatekeeperGatewayISDN SETUP ARQ ACF PROCEEDING SETUP ARQ ACF ALERTING CONNECT PROCEEDING ALERTING CONNECT IP ADDRESS E-164 IP ADDRESS IVR AUDIO DTMF H.320 Terminal E-164

© VideoCentric Limited 2002 RADVision L2W-323 Gateway H.320 to H.323 Using TCS-4 H.323 TerminalGatekeeperGatewayISDN SETUP ARQ ACF PROCEEDING SETUP ARQ ACF ALERTING CONNECT PROCEEDING ALERTING CONNECT IP ADDRESS E-164 IP ADDRESS H.320 Terminal E-164 TCS-4

© VideoCentric Limited 2002 RADVision L2W-323 Gateway PROCEEDING Calling TerminalGatekeeperGateway ACF SERVICE CODE IP ADDRESS ARQ ALERTING CONNECT ARQ SETUP PROCEEDING ALERTING CONNECT ISDN ISDN NUMBER H.323 to H.323 via H.320 with TCS-4 SERVICE CODE TCS-4

© VideoCentric Limited 2002 RADVision L2W-323 Gateway Press any Key To start configuration... Enter to configure default network port values Enter to enable/disable H.323 fast connect option Enter to configure the early connect timeout for LAN to WAN voice calls Enter to enable/disable echo cancellation (voice calls only) Enter to change the configuration software password Enter to configure the ISDN switch type Enter to enable/disable sensing of ISDN layer 1 for US ISDN (unplugged cable) Enter to enable/disable T.120 :1 Enter IP Address for Interface No. 1 Without leading zeros : 10.0.0.229 Enter Default Router IP Address Without leading zeros : Enter IP Mask (Hex) : ffff0000 Updating NVRAM Updating BOOT LINE PARAMS with new IP Entering Flash Reboot Hook! Configure Network Ports (1) Enter IP Address Enter Router IP Address Enter SubNet Mask (NOTE HEX FORMAT!!) Connecting A Terminal (First Time Install)

© VideoCentric Limited 2002 RADVision L2W-323 Gateway The Management Software Product information. Data Sheets and User Guides for each RADVision product in Adobe Acrobat.PDF format. Management tool for creating audio files (.WAV) to be used with the Interactive Voice Response feature of the L2W-323 Gateway and the L2W-323P Gateway. On-LAN configuration tool. This is the main configuration program for all RADVision products. Software Upload utility. This program provides a method for uploading FLASH ROM software to RADVision products.

© VideoCentric Limited 2002 RADVision L2W-323 Gateway IVR SERVER GATEKEEPER IP=10.0.0.21 GATEWAY PROCESSING IP=10.0.0.21 OPTIONAL EXTERNAL GATEKEEPER IP=10.0.0.55 OPTIONAL EXTERNAL IVR SERVER IP=10.0.0.65 L2W-323 GATEWAY OPTIONAL EXTERNAL GATEKEEPER IP=10.1.1.30 OPTIONAL EXTERNAL IVR SERVER IP=10.1.1.40 ROUTER IP=10.0.0.1/10.1.1.1 Unit Configuration Gatekeeper, Router & Ivr

© VideoCentric Limited 2002 RADVision L2W-323 Gateway Service Code for 2B ISDN Gateway Call (91) First ISDN number of a 2B H.320 call (123456) Second Number Delimiter (, ) Second ISDN number of a 2B H.320 call (123456) Unit Configuration Second Number Delimiter 2B Call - Numbers Different 2B Call - Numbers the Same

© VideoCentric Limited 2002 RADVision L2W-323 Gateway ISDN NETWORK ISDN = 12345x2 E.164 = 123 Service Code for 2B ISDN Gateway Call (91) First ISDN number of a 2B H.320 call (12345) Second Number Delimiter (, ) Second ISDN number of a 2B H.320 call (123456) TCS-4 Delimiter ( # ) TCS-4 number (123) Unit Configuration - TCS-4 Delimiter 2B Call - Numbers Different 2B Call - Numbers the same

© VideoCentric Limited 2002 RADVision L2W-323 Gateway Gatekeeper/Gateway Service Registration REGISTRATION REQUEST (RRQ) L2W-323 GatewayGatekeeper REGISTRATION ACCEPT (RCF) E.164 : 11* E.164 : 12* E.164 : 13* E.164 : 20* E.164 : 21* E.164 : 22* E.164 : 10* Name : GW3564252637 Type : Gateway E.164 : 23* E.164 : 30*

© VideoCentric Limited 2002 RADVision L2W-323 Gateway ID = GW3536367 E.164 = 10* E.164 = 11* etc. ID = GW3765424 E.164 = 10* E.164 = 11* etc. E.164 = 701 E.164 = 702 E.164 = 703 E.164 = 704 TYPENAMEIPE.164 GatewayGW353636710.0.0.2110* GatewayGW353636710.0.0.2111* GatewayGW376542410.0.0.3110* GatewayGW376542410.0.0.3111* TerminalTerm110.0.0.100701 TerminalTerm210.0.0.101702 TerminalTerm310.0.0.102703 TerminalTerm410.0.0.103704 GATEKEEPER GATEKEEPER REGISTRATION TABLE Gatekeeper/Gateway/Terminal Registrations

© VideoCentric Limited 2002 RADVision L2W-323 Gateway Non-US settings (note that the SPID button is unavailable) US settings (note that the SPID button is active) Unit Configuration ISDN BRI WAN Ports - Protocols

© VideoCentric Limited 2002 RADVision L2W-323 Gateway Port 1 PrefixDescription 9*2 x 64K Call 8*Voice Call Port 2 PrefixDescription 9*2 x 64K Call 8*Voice Call Port 3 PrefixDescription 9*2 x 64K Call 8*Voice Call Port 3 PrefixDescription 9*2 x 64K Call 8*Voice Call Available Services PrefixDescription 9*2 x 64K Call 8*Voice Call Unit Configuration - Global Services

© VideoCentric Limited 2002 RADVision L2W-323 Gateway Ports 1- 4 PrefixDescription 9*2 x 64K Call 8*Voice Call Available Services PrefixDescription 9*2 x 64K Call 8*Voice Call Unit Configuration Global Services - Multiple Gateways ISDN NETWORK

© VideoCentric Limited 2002 RADVision L2W-323 Gateway Port 1 PrefixDescription 91*2 x 64K Call Port 2 PrefixDescription 92*2 x 64K Call Port 3 PrefixDescription 93*2 x 64K Call Port 3 PrefixDescription 94*2 x 64K Call Available Services PrefixDescription 91*2 x 64K Call - Port 1 92*2 x 64K Call - Port 2 Unit Configuration - Specific Services 93*2 x 64K Call - Port 3 94*2 x 64K Call - Port 4

© VideoCentric Limited 2002 RADVision L2W-323 Gateway ISDN NETWORK L2W-323 Gateway equipped with V.35 DTE module Ascend Inverse Multiplexer V.35 DTE Cable V.35 DCE Cable L2W-323 Gateway equipped with V.35 DCE module H.320 Terminal equipped with V.35 port Unit Configuration - V.35 Wan Ports

© VideoCentric Limited 2002 RADVision L2W-323 Gateway GateKeeper Zone 2 ZONE 1ZONE 2 Gatekeeper Services PrefixDescription 9*2 x 64K Call 8*Voice Call  PublicDefault  7*384K BONDING  Terminal A Terminal B Terminal D Terminal C Gatekeeper Setup Public & Default Services

© VideoCentric Limited 2002 RADVision L2W-323 Gateway Pre-defined Gatekeeper Services Call Forwarding GateKeeper E.164 = 101 E.164 = 102 E.164 = 103 Terminal A Terminal B Terminal C Forward Service Set to Public & Default Prefix = *77 Dial = *77102 Dial = 101

© VideoCentric Limited 2002 RADVision L2W-323 Gateway Gatekeeper Setup Pre-defined Gatekeeper Services Exit Zone GateKeeper Zone 1 E.164 = 101 E.164 = 102 E.164 = 201 Terminal A Terminal B Terminal C Exit Zone Service Set to Public & Default Prefix = 22 Dial = 22201 GateKeeper Zone 2 Zone 1 Zone 2

© VideoCentric Limited 2002 RADVision L2W-323 Gateway GateKeeper Zone 1 E.164 = 101 E.164 = 102 E.164 = 201 Terminal A Terminal B Terminal C Zone Prefix 1 Service Set to Public & Default Prefix = 11 Dial = 11101 GateKeeper Zone 2 Zone 1 Zone 2 Gatekeeper Setup Pre-defined Gatekeeper Services Zone Prefix

© VideoCentric Limited 2002 RADVision L2W-323 Gateway Gatekeeper Setup End-point Supported Services - Groups E.164 = 701 E.164 = 702 E.164 = 703 E.164 = 704 Pre-define the End-Point to add additional E-164 Numbers Add the additional E.164 Number(s) to the gatekeeper Service table Group E.164 = 80 ISDN NETWORK ISDN = 123456 Dial = 12345^80

© VideoCentric Limited 2002 RADVision L2W-323 Gateway GateKeeper Zone 2 IP=10.0.0.3 ZONE 1ZONE 2 Neighbor GateKeepers IPDescription 10.0.0.3Zone 2 PrefixDistance 0 Terminal A Terminal B Terminal D Terminal C GateKeeper Zone 1 IP=10.0.0.2 Port 1719 Neighbor GateKeepers IPDescription 10.0.0.2Zone 1 PrefixDistance 0 Port 1719 Gatekeeper Setup Neighbor Gatekeepers

© VideoCentric Limited 2002 RADVision L2W-323 Gateway GateKeeper Island 1Island 2 Terminal A Terminal B Terminal D Terminal C Network Topology IPDescription 10.0.0.0Island 11 CodeMask 255.255.255.0 Subnet IP = 10.0.0.0 / 255.255.255.0 Subnet IP = 10.0.1.0 / 255.255.255.0 10.0.1.0Island 22255.255.255.0 Gatekeeper Setup Optimized Call Routing (Islands)

© VideoCentric Limited 2002 RADVision L2W-323 Gateway L2W-323 Gateway MCU-323 Multipoint Conference Unit L2W-323P Gateway VIU-323 Video Interface Unit.

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© VideoCentric Limited 2002 RADVision L2W-323 Gateway L2W-323 Gateway MCU-323 Multipoint Conference Unit L2W-323P Gateway VIU-323 Video Interface Unit.

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