Technical Description of TANDBERG Gateway with software version G2 TANDBERG D13192 Rev.
Technical Description of TANDBERG Gateway with software version G2 Table of contents 1 INTRODUCTION ............................................................................................................................................ 4 2 PRODUCT DESCRIPTION............................................................................................................................ 5 2.1 SOFTWARE......................................................................................................
Technical Description of TANDBERG Gateway with software version G2 4.5.2 Telephony................................................................................................................................................ 24 4.5.3 Audio Compression Algorithms .............................................................................................................. 24 4.6 SYSTEM MANAGEMENT .............................................................................................................
Technical Description of TANDBERG Gateway with software version G2 1 Introduction The TANDBERG Gateway is designed to connect up to 8 videoconferencing calls and 8 telephone calls simultaneously between ISDN and IP Networks. The TANDBERG Gateway supports the ITU-T H.320 standard and a combination of H.221 and BONDING for communication on up to 30 ISDN B-channels as well as ITU-T H.323 v.4 standard for communication up to 2 Mbps over IP networks.
Technical Description of TANDBERG • • • • • • • Gateway with software version G2 Dual Stream - supports Duo VideoTF on ISDN and IP, and People+Content on ISDN. Secure Access - Supports XML/SOAP over HTTPS Support for TANDBERG Scheduler and TANDBERG Management Suite - (Optional) ISDN Hotline Terminal Control Session (TCS-4) Interactive Voice Response (IVR) Direct Inward Dialing (DID) 2 Product Description The TANDBERG Gateway is built on a standard 19-inch rack mounted chassis of only 1U in height. 2.
Technical Description of TANDBERG Gateway with software version G2 4 TANDBERG Gateway Interfaces & Features Extensive use of industry standard interfaces and connectors ensure effortless integration of external equipment with the TANDBERG Gateway. These interfaces can easily be controlled via the web user interface. 4.1 Network Interfaces and Features Network Interfaces 4 x PRI (RJ-45 Jack) Primary Rate (G.
Technical Description of TANDBERG 4.1.2 Gateway with software version G2 PRI E1/T1 ISDN 4.1.2.1 ISDN number plan The TANDBERG Gateway’s PRI lines may use one or more numbers for dial in. If more than one number is used, the numbers must be consecutive. 4.1.2.2 PRI Trunk Grouping When using more than one PRI line, the same properties for PRI 1 can be used for all PRI's by defining them all as a trunk group. 4.1.2.
Technical Description of TANDBERG Gateway with software version G2 Pinout of PRI E1/T1 Interface:4 PRI 1 2 4 5 Pinout TIP RX RING RX RING TX TIP TX NOTE: TANDBERG recommends always using category 5 cabling. PRI T1 (US only): Network Service Facility (NSF) can be configured as blank/no value (i.e. NSF not used – default) or any value between 0 and 31, to describe the service facility on the PRI/T1 line. AT&T Service code (ref.
Technical Description of TANDBERG 4.1.3 Gateway with software version G2 Dial In Services 4.1.3.1 Direct Inwards Dialing (DID) By enabling this feature, it is possible to make a direct mapping between ISDN numbers and H323 aliases. This requires that the PRI lines connected to the TANDBERG Gateway are configured with a range of numbers. This range of numbers should be large enough to associate one ISDN number to each H.323 device that is intended to make use of the DID feature. The H.
Technical Description of TANDBERG Gateway with software version G2 4.1.3.4 Hotline When calling the Hotline number specified in the TANDBERG Gateway, the call is automatically transferred to a predefined H.323 alias. This feature can be used when an operator or helpdesk is needed. All ISDN Dial In features (DID, IVR, TCS-4 and Hotline) can be used in any combination. 4.1.4 IP Dial Out Services 4.1.4.1 Service Prefixes A Service Prefix is used when dialing from a H.323 endpoint to a ISDN endpoint.
Technical Description of TANDBERG Gateway with software version G2 which packets to send first and which to throw away. Some information/traffic is time critical while other is not, and classification is used to differentiate this traffic. One may set separate IP precedence for Signalling, Audio, Video and Data (values 1 – 7) as well as turn IP precedence off. The auto setting uses the following values for IP precedence: Signalling=6 Audio/Video=4 Data=3 (e.g.
Technical Description of TANDBERG Gateway with software version G2 An example of this is automatic adjustment of total bandwidth used when DuoVideo is opened. 4.1.5.3 Dynamic playout buffering Shapes the incoming data for better playout and re-sequencing of packet delivered out of order. This ensures better lip sync. 4.1.5.4 Asymmetrical media capabilities Audio and video protocols can be fully asymmetrical. E.g., the TANDBERG Gateway can send H.263 and receive H.261 at the same time. 4.1.5.
Technical Description of TANDBERG Gateway with software version G2 4.1.5.7 Layer 4 Ports used in H.323 The following tables describes which layer 4 ports are being used by the TANDBERG Gateway when a call is made on an H.323 network. TANDBERG Gateway meetings + Duo Video Function Port Gatekeeper Discovery (RAS) 1719 Q.931 Call Setup 1720 H.245 Range 5555—5587 Video Range 2326—2837 Audio Range 2326—2837 Data/FECC Range 2326—2837 Type UDP TCP TCP UDP UDP UDP 4.1.5.
Technical Description of TANDBERG Gateway with software version G2 4.1.5.9 Intelligent Packet Loss Recovery (IPLR) IPLR is an ITU standards based packet loss compensation for H.323 that improves received video into the TANDBERG Gateway. IPLR supports all video protocols and resolutions that TANDBERG Gateway already has implemented and is compatible with all terminals.
Technical Description of TANDBERG 4.1.6 Gateway with software version G2 LEDs Description The TANDBERG Gateway has 24 LEDs (Light Emitting Diodes) on the front panel. Each giving various information, as shown below. 4.1.6.1 Description of PRI Alarms A PRI cable consists of four wires (2 pairs of wires): One pair for Transmit (TX) and one pair for Receive (RX) signals. Red Alarm Red alarm or Loss of signal (LOS) means that there is no signal and thus no framing info received.
Technical Description of TANDBERG Gateway with software version G2 Scenario: TANDBERG Gateway is connected via a CSU (i.e. a NT ‘Network Termination’) as follows: TANDBERG Gateway –cableA–CSU–cableB–Network If a CSU loses framing/sync from the network (example: a bad cable B), it shall no longer send valid framing out on cable A towards the TANDBERG Gateway. Instead it transmits "Blue Alarm".
Technical Description of TANDBERG Gateway with software version G2 4.1.8 TANDBERG Gateway Capacity The total capacity of the TANDBERG Gateway is defined by the following rules. I. Maximum 8 video calls and 8 telephones calls. II. Total system bandwidth (IP + ISDN) of the TANDBERG Gateway is 7680 kbps. The maximum bandwidth used for ISDN calls is depending on the number and type of PRI's installed: a) The maximum bandwidth for each ISDN E1 is 1920 kbps (30x64kbps).
Technical Description of TANDBERG Gateway with software version G2 4.1.8.1 TANDBERG Gateway Capacity – typical scenarios for 4Mb Option In the table below some typical capacity scenarios are listed (they can be derived by the calculation above): Bandwidth 128 kbps 256 kbps 384 kbps 512 kbps 768 kbps 1472 kbps (1.5Mbps) 1920 kbps (2Mbps) Encrypted (Max. no. of video calls) Non-encrypted (Max. no.
Technical Description of TANDBERG Gateway with software version G2 which encrypts "the session keys". When the session are collected by the remote end, encryption of the audio, video and data channels can start. The encryption will be established automatically when both endpoints in the conference supports encryption with automatic key generation (and the conference is set up for encryption mode of operation). Encryption is supported for meetings up to 768 kbps and for the TANDBERG feature DuoVideo.
Technical Description of TANDBERG Gateway with software version G2 4.2 Aggregation Standards ISDN Aggregation H.221 ISO 13871 H0 Frame Structure from 64 (56*) kbps to 128 kbps BONDING, Mode 1 from 64 (56*) kbps to 2 Mbps One 384 kbps channel 4.2.1 BONDING • ISO 13871, BONDING Mode 1 for bit rates from 56 kbps up to 2 Mbps (1 to 30 channels). • The maximum relative delay difference between B-channels is 0.5 second (i.e. to compensate for different routing of channels).
Technical Description of TANDBERG Gateway with software version G2 4.3 RS232 Interface/Application Programmable Interface (API) Data Standards Data Modem TANDBERG Dynamic Data Channel (DDC) Standard modem commands Data Interfaces 1 x Data port, RS-232 (9-pin D-sub), Up to 115200 Baud for Data & Control The RS232 port on the TANDBERG Gateway is implemented as Digital Circuit Terminating Equipment (DCE). The connectors used are female 9-pin D-subs and the pin-out is shown in table below.
Technical Description of TANDBERG Gateway with software version G2 4.4 Video Features The TANDBERG Gateway supports the ITU video standards H.261, H.263, H.263+ and H.264. 4.4.1 Optimised Video Compression The ITU standard H.264 provides: • Optimised compression and decompression of video at lower bandwidths. • A sharper picture than provided by H.261 and H.263. • Improved contrast and enhanced clarity of the finer details within an image.
Technical Description of TANDBERG Gateway with software version G2 4.4.4 Duo Video The TANDBERG Gateway is capable of receiving/transmitting two simultaneous video signals from/to the connected sites7 on all call rates from 128kbps and above. When one of the sites requests for Duo Video, the TANDBERG Gateway will open Duo Video towards the other video site if capable of receiving it.
Technical Description of TANDBERG Gateway with software version G2 4.5 Audio Features 4.5.1 Custom Sounds The TANDBERG Gateway has a variety of sounds that may be changed by storing new files on the FTP file system of the TANDBERG Gateway. Ref. Ch.5.2 for details. 4.5.1.1.1 Gateway Welcome When endpoints are entering a conference, they will be greeted with a default welcome sound. It is possible to customize this welcome sound by storing a WAV-file in the system. 4.5.1.1.
Technical Description of TANDBERG Gateway with software version G2 4.6 System Management TANDBERG provides a comprehensive set of management tools, and is committed to the use of standards-based tools.
Technical Description of TANDBERG Gateway with software version G2 operating systems), which includes the necessary programs such as: • An FTP client (please see ‘Upgrading software in TANDBERG Videoconferencing units’- document D10238 - for details) • A web-browser (please see ‘TANDBERG Gateway User Manual’- document D13187 - for details) • A Telnet client (please see ‘TANDBERG Gateway API’- document D13202 - for details) • A terminal emulator for the RS232 port (please see ‘TANDBERG Gateway API’ documen
Technical Description of TANDBERG Gateway with software version G2 remotely. Local management, control and software upgrade facilities are also available through a standard RS232 interface. 4.6.4 System Management Functionality 4.6.4.1 Remote software upgrades using FTP: This service is provided by the standard TCP/IP based FTP protocol. Any networked PC may perform software upgrades either locally or over the Internet depending on the LAN connectivity on the customer premises (firewalls etc.).
Technical Description of TANDBERG Gateway with software version G2 • SSL Secure Sockets Layer, protocol developed by Netscape for transmitting private documents via the Internet. SSL works by using a private key to encrypt data that is transferred over the SSL connection. • HTTPS - Web pages that require an SSL connection start with https: instead of http:.
Technical Description of TANDBERG Gateway with software version G2 It is also important to understand that only the password is protected with this service. The actual connection is not encrypted, and can be sniffed as for a normal telnet connection. 4.6.5.3 Disable Services There is no router inside the system that can route between the ISDN side and the IP side of the TANDBERG Gateway. This means it is not possible to get access to the Ethernet port via an ISDN conference.
Technical Description of TANDBERG Gateway with software version G2 4.6.6 Layer 4 ports used by the system The following TCP and UDP ports are relevant for the TANDBERG Gateway. Function Gatekeeper RAS Gatekeeper Discovery Q.931 Call Setup H.245/Q.931 Video Audio Data/FECC FTP (control) Telnet HTTP HTTPS NTP Port 1719 224.0.1.
Technical Description of TANDBERG Gateway with software version G2 5 Miscellaneous features 5.1 Phone book The TANDBERG Gateway can store up to 100 numbers in the phonebook. The phonebook may be edited through the web interface or by editing the dir.prm file, stored on file system of the TANDBERG Gateway (FTP). It also interacts with the Phone book features in TANDBERG Management Suite. 5.2 File system (FTP) The TANDBERG Gateway incorporates an internal FTP-server where various files can be stored.
Technical Description of TANDBERG Gateway with software version G2 Directory - dir.prm This file contains the directory/phonebook of the TANDBERG Gateway. D13192 Rev.
Technical Description of TANDBERG Gateway with software version G2 6 Environmental Issues 6.1 TANDBERG’s Environmental Policy • • • • TANDBERG’s Research and Development is continuously improving TANDBERG’s products towards less use of environmentally hazardous components and substances as well as to make the products easier to recycle. TANDBERG's products are Video Conferencing Solutions.
Technical Description of TANDBERG Gateway with software version G2 7 Product Approvals The product has been approved by various international approval agencies, among others: UL, BABT and NEMKO. According to their Follow-Up Inspection Scheme, these agencies also perform production inspections at a regular basis, for all production of TANDBERG’s equipment. The test reports and certificates issued by the approval agencies show that the TANDBERG Gateway complies with the following standards. 7.
Technical Description of TANDBERG Gateway with software version G2 7.6 NEBS approval This product complies with the standards GR-63-CORE and GR-1089-CORE and is NEBS approved by UL. For NEBS compliance, the product should be installed in the following manner: - Use the enclosed rack brackets marked "NEBS". - There should be a clearance of 9.1cm between the product and any other product mounted in the rack. D13192 Rev.
Technical Description of TANDBERG Gateway with software version G2 8 Product Reliability The predicted reliability of the TANDBERG Gateway is expressed in the expected random Mean Time Between Failures (MTBF) for the electronic components based on the Power On Hours (POH). • The POH for the TANDBERG Gateway is > 69 000 hours. The MTBF value is dependent on correct handling (e.g.: ESD protective measures are used), installation and use of the TANDBERG Gateway.
Technical Description of TANDBERG Gateway with software version G2 9 Technical specification of TANDBERG Gateway 9.1 Mechanical information10 Height Width Depth Weight TANDBERG Gateway 4.4 cm 1.7 in 44.2 cm 17.4 in 31.8 cm 12.5 in 5.15 kg 11.3 lbs The TANDBERG Gateway is a standard 19 inch rack mountable with 1U height. Standard cables for TANDBERG Gateway PRI cables (4) Ethernet cable RS232 cable Power cables (International package) Power cable (US only) Part no.
Technical Description of TANDBERG Gateway with software version G2 9.3 Operating Temperature and Humidity • 0° C to 35° C (32° F to 95° F) ambient temperature. • 10% to 90 % Relative Humidity (RH) 9.4 Storage and Transport Temperature • -20° C to 60° C (-4° F to 140° F) at RH 10-90 % (non-condensing) 9.5 System Power Consumption • Maximum power consumption for TANDBERG Gateway is 90 W. D13192 Rev.
Technical Description of TANDBERG Gateway with software version G2 10 Technical Specification sheet System Capacity Maximum number of video conferencing calls: 8 Maximum number of audio calls: 8 Endpoints Supported H.320 conferencing endpoints H.323 conferencing endpoints Analogue/ IP telephones Bandwidth H.320 up to 3840 kbps H.323 up to 3840 kbps Video Standards H.261, H.263, H.263+, H.263++, H.264 Audio Standards G.711, G.728, G.722, G.722.
Technical Description of TANDBERG System Management Total management via embedded WEB server using HTTPS, SNMP, Telnet and FTP 1 x RS-232 for local software upgrades, local control and diagnostics Management using TANDBERG Management Suite Call scheduling via TANDBERG Scheduler and TANDBERG Management Suite (Optional) Embedded WEB server Total Conference and Call control System diagnostics D13192 Rev.
