Coral Voice over IP Installation Manual

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1 Coral Voice over IP Installation Manual (Version 14.67) The flexible way to communicate

2

3 The information contained in this document is proprietary and is subject to all relevant copyright, patent and other laws protecting intellectual property, as well as any specific agreement protecting TADIRAN TELECOM LTD.'s (herein referred to as the Manufacturer ) rights in the aforesaid information. Neither this document nor the information contained herein may be published, reproduced or disclosed to third parties, in whole or in part, without the express, prior, written permission of the Manufacturer. In addition, any use of this document or the information contained herein for any purposes other than those for which it was disclosed is strictly forbidden. The Manufacturer reserves the right, without prior notice or liability, to make changes in equipment design or specifications. Information supplied by the Manufacturer is believed to be accurate and reliable. However, no responsibility is assumed by the Manufacturer for the use thereof nor for the rights of third parties which may be effected in any way by the use thereof. Any representation(s) in this document concerning performance of the Manufacturer's product(s) are for informational purposes only and are not warranties of future performance, either express or implied. The Manufacturer's standard limited warranty, stated in its sales contract or order confirmation form, is the only warranty offered by the Manufacturer in relation thereto. This document may contain flaws, omissions or typesetting errors; no warranty is granted nor liability assumed in relation thereto unless specifically undertaken in the Manufacturer's sales contract or order confirmation. Information contained herein is periodically updated and changes will be incorporated into subsequent editions. If you have encountered an error, please notify the Manufacturer. All specifications are subject to change without prior notice. Copyright by TADIRAN TELECOM LTD., All rights reserved worldwide. The Coral is Protected by U.S. Patents: 6,594,255; 6,598,098; 6,608,895; 6,615,404 All trademarks contained herein are the property of their respective holders.

4 Record of Changes Issue No. Issue Date Brief Description Entered by: 1 January 2003 Coral Software Version 14.1x, FlexSet-IP 280S version 1.xx 2 December 2003 Coral Software Version 14.65, FlexSet-IP 280S version 2.xx 3 March 2004 Coral Software Version 14.66, FlexSet-IP 280S version 2.xx 4 September 2004 Coral Software Version 14.67, FlexSet-IP 280S version 3.xx Tadiran Telecom Business Systems Tadiran Telecom Business Systems Tadiran Telecom Business Systems Tadiran Telecom Business Systems 5 March 2006 PUGW, PUGWipx, MRC Tadiran Telecom Coral FlexiCom Voice Over IP Installation Guide

5 TABLE OF CONTENTS 1 About this Manual Document Description Special Symbols Used in this Manual Related Documentation Introduction Overview VoIP Configuration VoIP Terminology Installation Steps Planning System Configuration and Installation VoIP Configuration PI Programming UGW, UGW-E, PUGW Universal Gateway Card for Coral FlexiCom 300, 400, 5000, 6000 and Coral IPx 800, 3000, 4000 Overview UGW Card Layout and Front Panel Installing the UGW Card PI Database Programming - UGW General Unpacking MG/MRC Module ULI / ULI-1 Module (for UGW Layout B/B1 and UGW-E only) Inserting the UGW Card Network (LAN) Connection PI Database Programming - UGW Card LED Indication Upgrading the UGW Software TOC Coral Voice Over IP Installation Manual TOC-1

6 4 UGWipx, UGW-Eipx, PUGWipx Universal Gateway Card for Coral FlexiCom 200 and Coral IPx 500 Overview UGWipx Card Layout and Front Panel Installing the UGWipx Card PI Database Programming - UGW General Unpacking MG/MRC Module Inserting the UGWipx Card Network (LAN) Connection PI Database Programming - UGW Card LED Indication Upgrading the UGWipx Software FlexSet-IP 280S Keyset Installation General Information Installing the FlexSet-IP 280S Survivability PI Database Programming - General PI Database Programming - FlexSet-IP 280S Unpacking and Assembling the FlexSet-IP 280S Network (LAN/PC) Connection Wall Mounting/Desk Elevation Powering the FlexSet-IP 280S Configuring the FlexSet-IP 280S Troubleshooting Upgrading the FlexSet-IP 280S Software TOC 6 Coral Teleport Telephony Gateway Installation General Information Unpacking TOC-2 Coral Voice Over IP Installation Manual

7 Coral Teleport MP-102/104/108 Description and Hardware Installation Coral Teleport MP-124/FXS Description and Hardware Installation Software Installation PI Database Programming Coral Teleport Configuration and Monitoring Specifications IPG IP Gateway Card 8 Coral Sentinel Session Border Control Overview Installing the Coral Sentinel Unpacking the Coral Sentinel Powering the Coral Sentinel Coral Sentinel Initial Configuration Network Connection Wall Mounting/Desk Elevation Coral Sentinel Configuration PI Database Programming - Coral Sentinel FlexIP SoftPhone 10 FlexSet IP in SOHO Environment Small Office, Home Office Installation Overview Minimum Requirements Recommended SOHO Configurations Installation TOC Coral Voice Over IP Installation Manual TOC-3

8 TOC TOC-4 Coral Voice Over IP Installation Manual

9 1 About this Manual 1 Document Description The Voice Over IP Installation Manual is designed for field use by Coral FlexiCom and Coral IPx systems installation and service personnel. It describes the installation of the necessary gateway cards and IP terminals. 2 Special Symbols Used in this Manual There is a risk of danger to life or personal injury. There is a risk of damage to the Coral system. Indicates important information demanding special attention. NOTES: Tip: Advice that makes it easier to follow the steps of a procedure. A page that is intentionally left blank. It may be used for the reader's notes. About this Manual 1 Coral Voice Over IP Installation Manual 1-1

10 About this Manual 1 3 Related Documentation Program Interface Reference Manual for Coral versions and later Relevant Coral system Installation Procedure and Hardware Reference Manual Coral FlexSet-IP 280S User Guide Coral FlexiCom and IPx Product Description FlexIP SoftPhone User Guide FlexIP SoftPhone online help 1-2 Coral Voice Over IP Installation Manual

11 2 Introduction 1 Overview Catering to the needs of an ever-advancing market, the Coral VoIP is the latest in a series of Coral FlexiCom and Coral IPx products that utilize Voice over Internet Protocol (VoIP), designed to achieve maximum resource efficiency in an expanding organization. Businesses have already installed a company-wide data network. The challenge, however, is to integrate fully functional voice/telephony capabilities into these existing data networks, thus reaping the significant benefits available from combining voice and data communication. The Coral VoIP Advanced Communications Platform provides an integrated IP network while still maintaining the existing telecommunications network. IP technology is incorporated by using standard Coral stations (keysets, SLTs, and Wireless) along with the Coral IP station sets such as the FlexSet-IP 280S and the PC-based FlexIP SoftPhone. The Coral VoIP combines the full array of Coral functionality with all the flexibility of a LAN connection. Dedicated IP FlexSets can be connected wherever a network port is available, effectively eliminating the limitations previously imposed by geographical location. The IP-enabled FlexSet gives the employee working from home access to all the telephony features available in the workplace at the touch of a button - allowing true, unrestricted telecommuting. IP terminals such as the Coral Teleport and Coral Sentinel enable advanced IP connectivity at even the remotest office. Signalling and Voice media are supported by a Universal Gateway (UGW) Card and Media Gateway (MG) module, respectively for all IP stations. FlexSet-IP 280S calls to other IP hosts (i.e. peer-to-peer connections) do not use Coral voice multiplexing. Only signalling is sent from the Coral to the FlexSet-IP 280S via the UGW. On the other hand, FlexSet-IP 280S calls to any Coral system station do make use of the supporting Coral via the UGW and the MG module. Introduction 2 Coral Voice Over IP Installation Manual 2-1

12 2 QSIG over IP The Coral supports QSIG specification for private network feature signaling between PABX systems. Using QSIG protocols, two or more separate exchanges may be linked together through ISDN facilities to form a single, unified logical system. In addition to QSIG over legacy ISDN lines, the Coral supports the QSIG protocol operating over IP. All Coral features that are available via the legacy QSIG systems are available using QSIG over IP. QSIG over IP has the additional advantage of true point-to-multipoint operation. Each UGW card can connect to numerous PBXs, enabling fully-integrated mesh network configurations, in addition to star or point-to-point configurations. QSIG over IP enables IP keysets to communicate directly with one another, with the Corals being employed simply to control signaling, thus freeing up resources for other traffic. Call forward and call transferring also operate by rerouting - cutting out the transferring party to minimize use of system resources. QSIG over IP makes use of higher compression rates than QSIG over digital lines in order to conserve bandwidth. QSIG over IP can be configured to use different compression rates according to voice quality/bandwidth considerations. FlexSet-IP 280S Media Coral conference calls (3-Way) and the Silent Monitor features require the use of a 3-Way port (8DRCM, 8DRCF or CNF card) in the Coral, and therefore are not a pure peer-to-peer IP connection. Also, calls to regular system stations are not peer-to-peer connections and require MG channels from the supporting Coral FlexiCom system. Coral VoIP enables Networking of Corals over an IP net Connecting IP keysets over the LAN/WAN (for a distributed operation) Connecting an IP keyset over the Internet for a work at home application Enhanced capabilities, including directory Remote office/soho Solutions Coral FlexSet-IP 280S Introduction Coral FlexiCom IP Set FlexIP SoftPhone Enterprise IP-Based Overall Network Solution 2-2 Coral Voice Over IP Installation Manual

13 Target Audience of this Manual The Coral Voice Over IP Installation Manual is designed for field use by Coral system service personnel. It provides all the necessary information for successful installation and maintenance of the Coral IP systems, and provides an overview of VoIP configuration and terminology. 2 Introduction Coral Voice Over IP Installation Manual 2-3

14 Introduction 2 2 VoIP Configuration A standard VoIP configuration, shown in Figure 2-1: VoIP Configuration, includes a number of the following components, in addition to the Coral FlexiCom or Coral IPx platform: UGW cards (with option MG modules) IP Stations (FlexSet-IP 280S, Coral FlexiCom IP Set) Coral Teleport (Telephony Gateway) for SLTs and Loop-Start/Ground-Start Trunks Network (LAN/WAN/etc.) Figure 2-1 VoIP Configuration Small / Remote Office SLTs ADSL Remote Office or Telecommuters Coral Teleport (Analog FXS) FlexSet-IP 280S PC PSTN FlexIP Softphone Internet via UGW Interface via UGW Interface FlexSet-IP 280S Router LAN SLT FlexSet SLT FlexSet FlexSet-IP 280S PC Coral Teleport (Analog FXS) PSTN Coral Teleport (Analog FXO) SLTs 2-4 Coral Voice Over IP Installation Manual

15 3 VoIP Terminology ADSL (Asymmetric Digital Subscriber Line) A technology for transmitting digital information at a high bandwidth on existing phone lines to homes and businesses. Unlike regular dial-up phone service, ADSL provides continuously-available, always on connection. ADSL is asymmetric in that it uses most of the channel to transmit downstream to the user and only a small part to receive information from the user. ADSL simultaneously accommodates analog (voice) information on the same line. ADSL is generally offered at downstream data rates from 512 Kbps to about 6 Mbps. Bridge Device A device interconnecting local area networks at the OSI Data Link Layer, filtering and forwarding frames according to media access control (MAC) addresses. (1) A device that connects two LANs. The LAN being connected can be alike or dissimilar. (2) A network device that selectively determines the appropriate segment to which it should send the signal. (3) The bridge performs two main functions: Forwarding & Filtering. Broadband Wideband technology capable of supporting voice, video and data, possibly using multiple channels. CA (Call Agent) A device that manages call control in an MGCP model Voice over IP network. CIR (Committed Information Rate) In frame relay networks, a CIR is a bandwidth (expressed in bits per second) associated with a logical connection in a permanent virtual circuit (PVC). Frame relay networks are digital networks in which different logical connections share the same physical path and some logical connections are given higher bandwidths than others. For example, a connection conveying a high proportion of video signals (which require a high bandwidth) could be set up for certain workstations in a company (or on a larger network) and other connections requiring less bandwidth could be set up for all other workstations. Using statistical multiplexing, frame relay assemblers and dissemblers (FRADs), the devices that interconnect to the frame relay network, manage the logical connections so that, for example, those with the video signals (and higher CIRs) get more use of the paths. Because the CIR is defined in software, the network's mix of traffic bandwidths can be redefined in a relatively short amount of time. Introduction 2 Coral Voice Over IP Installation Manual 2-5

16 Compression CODEC Coding/Decoding. Used to convert voice signals into IP packets and back again. CRC (Cyclic Redundancy Checking) A method of checking for errors in data that has been transmitted on a communications link. A sending device applies a 16- or 32-bit polynomial to a block of data that is to be transmitted and appends the resulting cyclic redundancy code (CRC) to the block. The receiving end applies the same polynomial to the data and compares its result with the result appended by the sender. If they agree, the data has been received successfully. If not, the sender can be notified to resend the block of data. DHCP (Dynamic Host Configuration Protocol) Enables individual computers on an IP network to extract their TCP/IP configurations from a server (the 'DHCP server') or servers, in particular, servers that have no exact information about the individual computers until they request the information. The overall purpose of this is to reduce the work necessary to administer a large IP network DHCP effectively eliminates communication and configuration problems resulting from incorrect information, while reducing administration overheads. DNS (Domain Name System) The method by which Internet addresses in mnemonic form such as are converted into the equivalent numeric IP address such as The DNS is a distributed database used by TCP/IP applications to map between these hostnames and IP addresses, and to provide electronic mail routing information. Each site (university department, campus, company, or department within a company, for example) maintains its own database of information and runs a server program that other systems across the Internet can query. The DNS provides the protocol which allows clients and servers to communicate with each other. DCE Introduction 2 Data Communication Equipment, includes: router, bridge, UGW, etc. DTE Data Terminal Equipment, includes: computer, printer, server, FlexSet-IP 280S, etc. 2-6 Coral Voice Over IP Installation Manual

17 Enterprise Network An information infrastructure, often combining private and public facilities, to cover all of the locations operated by a single company or corporate enterprise with a single communications fabric. Ethernet A local area network that connects devices like computers, printers and terminals. Ethernet operates over twisted-pair or coaxial cable at speeds of 10 or 100 Mbps. Gateway Gateways are points of entrance and exit from a communications network. Viewed as a physical entity, a gateway is that node that translates between two otherwise incompatible networks or network segments. Gateways perform code and protocol conversion to facilitate traffic between data highways of differing architecture. Gateway is a device that performs an application layer conversion of information from one protocol stack to another. An older term referring to a routing device. For example: A Coral FlexiCom system requiring a connection to the Internet (TCP/IP). The PCM information is first sent to the UGW card which converts the information to TCP/IP. Internet Address Also known as an IP address. This is a 32-bit hardware-independent address assigned to hosts using the TCP/IP protocol suite. IP (Internet Protocol) A networking protocol for providing a connectionless service to the higher transport protocol. It is responsible for discovering and maintaining topology information and for routing packets across homogeneous networks. Combined with TCP, it is commonly known as the TCP/IP platform. IP Address An address that uniquely identifies each host on a network or Internet. A unique IP address is required for each host and network component that communicates using TCP/IP. Each IP address includes a Network ID and a Host ID. Network ID - identifies the systems that are located on the same physical network bounded by IP routers. Host ID - identifies the host within the network. Example: Introduction 2 Coral Voice Over IP Installation Manual 2-7

18 Addressing Guidelines: Network ID cannot be is reserved for loopback functions. Network ID and host ID cannot be 255 (all bits set to 1). 255 is a broadcast address. Network ID and host ID cannot be 0 (all bits set to 0). 0 means this network only. Host ID must be unique to the network. IP Telephony The transmission of voice over an Internet Protocol (IP) network. Also called Voice over IP (VoIP), IP telephony allows users to make phone calls over the Internet, intranets, or private LANs and WANs that use the TCP/IP protocol. LAN (Local Area Network) A network that interconnects devices over a geographically small area, typically in one building or part of a building. The most popular LAN type is Ethernet, a 10 Mbps standard that works with 10BaseT, 10Base2, or 10Base5 cables. MAC (Media Access Control) A protocol that defines the way workstations gain access to transmission media, most widely used in reference to LANs. For IEEE LANs, the MAC layer is the lower sublayer of the data link layer protocol. Primary functions: Controls access to shared media. Handles the network topologies. MAC address (Physical Address) The MAC address is a unique 6 byte address coded on every: network adapter card (NIC), FlexSet-IP 280S, UGW card, MG module, etc. Introduction 2 MG (Media Gateway) Module A media gateway is any device, such as a circuit switch, IP gateway, or channel bank that converts data from the format required for one type of network to the format required for another. In the Coral environment, the MG module is a daughterboard that sits on the UGW card and enables communication between different media, for example between FlexSet-IP 280S keysets and standard (non-ip) keysets or SLT phones. 2-8 Coral Voice Over IP Installation Manual

19 MGCP (Media Gateway Control Protocol) One of a few proposed control and signal standards to compete with the older H.323 standard for the conversion of audio signals carried on telephone circuits (PSTN) to data packets carried over the Internet or other packet networks. The MGCP simplifies standards for VoIP technology by eliminating the need for complex, processor-intense IP telephony devices, thus simplifying and lowering the cost of these terminals. Network (1) A communication network is a collection of communication channels. (2) An interconnected group of nodes. (3) A series of points, nodes, or stations connected by communications channels; the collection of equipment through which connections are made between data stations. Network Layer A layer in the OSI reference model. The network layer provides address resolution and routing protocols. Address resolution enables the network layer to determine a unique network address for a node. Routing protocols allow data to flow between networks and reach their proper destination. Examples of network layer protocols are Address Resolution Protocol (ARP), Datagram Delivery Protocol (DDP), Internet Control Message Protocol (ICMP), Interior Gateway Protocol (IGP), Internet Protocol (IP), Internetwork Packet Exchange (IPX) and Packet Layer Protocol (PLP). NMS (Network Management System) The system that controls network configuration, fault and performance management, and diagnostic analysis. Node A point of interconnection to a network. Peer-to-Peer Connection A pure IP-to-IP direct connection between two IP hosts (e.g. FlexSet-IP 280S to FlexSet-IP 280S) over the LAN, involving no intervention from the MG module. Introduction 2 Coral Voice Over IP Installation Manual 2-9

20 2 PPP (Point-to-Point Protocol) Provides a standard means of encapsulating data packets sent over a single-channel WAN link. It is the standard WAN encapsulation protocol for the inter operability of bridges and routers over synchronous or asynchronous circuits. QoS (Quality of Service) On the Internet and in other networks, QoS is the idea that transmission rates, error rates, and other characteristics can be measured, improved, and, to some extent, guaranteed in advance. QoS is of particular concern for the continuous transmission of high-bandwidth video and multimedia information. Transmitting this kind of content dependably is difficult in public networks using ordinary best effort protocols. Using the Internet's Resource Reservation Protocol (RSVP), packets passing through a gateway host can be expedited based on policy and reservation criteria arranged in advance. Using ATM, which also lets a company or user preselect a level of quality in terms of service, QoS can be measured and guaranteed in terms of the average delay at a gateway, the variation in delay in a group of cells (cells are 53-byte transmission units), cell losses, and the transmission error rate. RJ-45 Connector (Registered Jack-45) A telephone connector that accommodates up to eight wires. RJ-45 plugs and sockets are used in Ethernet and Token Ring devices. Router Device An interconnection device that connects individual LANs. Unlike bridges, which logically connect at OSI layer 2, routers provide logical paths at OSI layer 3. Like bridges, remote sites can be connected using routers over dedicated or switched lines to create WANs. Routers are responsible for tracking which networks or segments exist and how they can be reached. T router determines the optimal path along which network traffic should be forwarded. Routing Introduction The process of selecting the most efficient circuit path for a message. The process of finding a path for each packet, to a destination host Coral Voice Over IP Installation Manual

21 RTP (Real-Time Transport Protocol) An Internet protocol standard that specifies a way for programs to manage the real-time transmission of multimedia data over either unicast or multicast network services. RTP supports video conferences with multiple, geographically dispersed participants and is commonly used in Internet telephony applications. RTP does not in itself guarantee real-time delivery of multimedia data (since this is dependent on network characteristics); it does, however, provide the wherewithal to manage the data as it arrives to best effect. RTP combines its data transport with a control protocol (RTCP), which makes it possible to monitor data delivery for large multicast networks. Monitoring allows the receiver to detect if there is any packet loss and to compensate for any delay jitter. Both protocols work independently of the underlying Transport layer and Network layer protocols. Information in the RTP header tells the receiver how to reconstruct the data and describes how the codec bit streams are packetized. Switch Device A device interconnecting local area networks at the OSI Data Link Layer. (1) A connectivity device that can perform bridging functions faster than a bridge. (2) Increases usable bandwidth. (3) Overcomes traffic saturation problems. Subnet Mask A method for determining the network ID in the IP address. A 32 bit value that is used to distinguish the network ID from the host ID. All bits that correspond to the Network ID are set to 1(255). All bits that correspond to the Host ID are set to 0. Examples: IP address: Subnet Mask: Network ID: Host ID: x.y TCP/IP (Transmission Control Protocol/Internet Protocol) A protocol platform, known also as the Internet protocol suite, that combines both TCP and IP. Widely used applications, such as Telnet, FTP and SMTP, interface to TCP/IP. Introduction 2 Coral Voice Over IP Installation Manual 2-11

22 2 Terminal Authentication Terminal authentication is performed at registration (initialization) of the FlexSet-IP 280S terminal. Each terminal has a unique MAC address implanted at manufacturing time, which is reported to the system at registration where it is compared against a list in the database of the Coral. Only IP terminals known to the Coral will be able to register with the system. TFTP (Trivial File Transfer Protocol) Protocol used when transferring files over the Internet. This protocol is used to download and install UGW and FlexSet-IP 280S software upgrades from the internet. UGW (Universal Gateway) The Universal Gateway card provides the Coral with the ability to connect to the IP World. All Coral IP stations (FlexSet-IP 280S) and Coral Teleport (telephony gateways for analog SLTs and Loop-Start/Ground-Start trunks) receive their Coral signalling from the UGW card. See Chapter 3 for details. ULI (UGW Line Interface) A daughterboard installed on the UGW card layout B, enabling the UGW card to connect to the IP world. The ULI provides two connectors at the front panel of the UGW. This card will be discontinued as soon as the ULI-1 becomes available. ULI-1 A daughterboard installed on the UGW card layout B, enabling one connector at the front panel of the UGW. UTP (Unshielded Twisted Pair) Introduction A popular type of cable that consists of two unshielded wires twisted around each other. Due to its low cost, UTP cabling is used extensively for local-area networks (LANs) and telephone connections. UTP cabling does not offer as high bandwidth or as good protection from interference as coaxial or fiber optic cables, but it is less expensive and easier to work with Coral Voice Over IP Installation Manual

23 VLAN (Virtual Local Area Network) A virtual (or logical) LAN is a local area network with a definition that maps workstations on some other basis than geographic location (for example, by department, type of user, or primary application). The virtual LAN controller can change or add workstations and manage load balancing and bandwidth allocation more easily than with a physical picture of the LAN. Network management software keeps track of relating the virtual picture of the local area network with the actual physical picture. VoIP (Voice over IP) Set of facilities for managing the delivery of voice information using the Internet Protocol (IP). Voice information is sent in digital form in discrete packets over the Internet instead of in analog form over the public switched telephone network (PSTN). A major advantage of VoIP is that it avoids the tolls charged by ordinary telephone service. VPN (Virtual Private Network) A restricted network that uses public wires to connect nodes. A VPN provides a way to encapsulate, or tunnel, private data cheaply, reliably, and securely through a public network, usually the Internet. WAN (Wide Area Network) A geographically dispersed telecommunications network. The term distinguishes a broader telecommunication structure from a local area network (LAN). A wide area network may be privately owned or rented, but the term usually connotes the inclusion of public (shared user) networks. 2 Introduction Coral Voice Over IP Installation Manual 2-13

24 2 4 Installation Steps The installation procedure for a Voice over IP system is comprised of the following steps: Planning System Configuration and Installation (Planning System Configuration and Installation on page 2-16) Includes planning the VoIP installation. Also includes a network survey with the IT manager. Coral system requirements. PI Database Programming (VoIP Configuration PI Programming on page 2-22) Includes the necessary program modifications required in the Coral Program Interface. UGW / UGWipx Card Installation (Chapter 3 / Chapter 4) Reposition ULI on UGW card (if installing in Coral IPx cabinet). Install and configure the UGW card and MG module. Includes installation information and configuration options for the UGW card into a Coral system. Includes instructions to configure network connections. IP Keyset Installation (Chapter 5) Includes information needed before initializing the FlexSet-IP 280S, defining IP addresses as well as sending MAC information to the system. Power and PC/LAN connections are also described. Coral Teleport Installation (Chapter 6) Introduction Includes information on configuring the External Telephony Gateway box used in order to set up SLTs, trunks and other non-standard IP equipment to be used as Coral hosts in the IP network. IPG Card Installation (Chapter 7) Not included in this manual Coral Voice Over IP Installation Manual

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