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Nortel 1000S Overview

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Nortel Communication Server 1000
Nortel Communication Server 1000 Release 4.5
Communication Server 1000S
Overview
Document Number: 553-3031-010
Document Release: Standard 3.00
Date: August 2005
Year Publish FCC TM
Copyright © Nortel Networks Limited 2005
All Rights Reserved
Produced in Canada
Information is subject to change without notice. Nortel Networks reserves the right to make changes in design
or components as progress in engineering and manufacturing may warrant.
Nortel, Nortel (Logo), the Globemark, This is the Way, This is Nortel (Design mark), SL-1, Meridian 1, and
Succession are trademarks of Nortel Networks.

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  • Page 1 All Rights Reserved Produced in Canada Information is subject to change without notice. Nortel Networks reserves the right to make changes in design or components as progress in engineering and manufacturing may warrant. Nortel, Nortel (Logo), the Globemark, This is the Way, This is Nortel (Design mark), SL-1, Meridian 1, and...

  • Page 3: Revision History

    Standard 3.00. This document is up-issued to support Communication Server 1000 Release 4.5. September 2004 Standard 2.00. This document is up-issued for Communication Server 1000 Release 4.0. October 2003 Standard 1.00. This document is a new NTP for Succession 3.0. It was created to support a restructuring of the Documentation Library.
  • Page 4 Page 4 of 44 Revision history 553-3031-010 Standard 3.00 August 2005...

  • Page 5: Table Of Contents

    Signaling Server ........
  • Page 6 Media Gateway 1000S ........Ethernet switch (customer-supplied) ......

  • Page 7: About This Document

    Nortel Communication Server 1000 Release 4.5 software. For more information on legacy products and releases, click the WARNING Before a CS 1000S system can be installed, a network assessment must be performed and the network must be VoIP-ready.

  • Page 8: Applicable Systems

    This document is intended for individuals responsible for the sale, acquisition, planning, or installation of a CS 1000S system. Conventions In this document, the CS 1000S system is referred to generically as “system.” Related information This section lists information sources that relate to this document.
  • Page 9 DECT: Description, Planning, Installation, and Operation (553-3001-370) Online To access Nortel documentation online, click the Technical Documentation link under Support & Training on the Nortel home page: www.nortel.com CD-ROM To obtain Nortel documentation on CD-ROM, contact your Nortel customer representative. Communication Server 1000S Overview...
  • Page 10 Page 10 of 44 About this document 553-3031-010 Standard 3.00 August 2005...

  • Page 11: Description And Features

    Terminal equipment ........Interworking/Interoperability ......Communication Server 1000S Page 11 of 44...

  • Page 12: Introduction

    CS 1000S is more than an IP PBX. It is the architecture that evolves, using open standards, to deliver future Advanced Applications, Interactive Multimedia Services, Integrated Desktops, and Management Services.
  • Page 13 IP devices and soft clients, and is the switching foundation of CS 1000S. In addition to access to the Telephony Feature Processing of a Call Server, devices can also access other services in the network, such as XML and IM.

  • Page 14: Features

    The Call Server can support up to 1000 IP Phones. Flexibility and redundancy The CS 1000S can be deployed in many flexible configurations in a LAN or WAN environment. The system can be deployed in a single location, multiple buildings in a campus setting, or a network of multiple locations with distributed Call Servers or branch offices.

  • Page 15: Software Applications

    The CS 1000S provides a number of capabilities to ensure that telephony is available in the event of equipment failure at a site. CS 1000S provides the following component redundancy: • Call Server with automatic database distribution • Signaling Server software, including H.323 Gateway and IP Phone software •...
  • Page 16 Gateway 9150 unit installs at the remote site and communicates with the central site using a 10BaseT Ethernet or ISDN Basic Rate Interface (BRI) connection. It uses VoIP technology to route voice and signaling packets between the remote office site and the CS 1000S main site, enabling seamless integration. 553-3031-010 Standard 3.00...
  • Page 17 Automatic Wake Up (AWU) and Do Not Disturb (DND). The guest dials an access DN and follows instructions until a confirmation message plays to activate a feature. For further information, see Hospitality Integrated Voice Services: Service Implementation Guide (553-3001-359). Communication Server 1000S Overview...

  • Page 18: Enhanced System Management

    Enhanced system management CS 1000S supports a suite of value-added management capabilities for multiple systems that reduces a customer’s total cost of ownership. These include Optivity Telephony Manager (OTM) and Element Manager. Optivity Telephony Manager Optivity Telephony Manager (OTM) provides management simplicity and flexible control.

  • Page 19: Terminal Equipment

    Optivity Telephony Manager (OTM). The OTM navigator includes integrated links to each network system and their respective instances of Element Manager. Terminal equipment The CS 1000S supports the following terminal equipment: • IP Phones •...
  • Page 20 IP Phones. IP Phones IP Phones provide the desktop clients for CS 1000S IP Telephony. The functionality and call features of these IP Phones are similar to that of a standard digital telephone, such as the M2616. The CS 1000S system supports the following IP Phones: •...
  • Page 21 For further information, see DECT: Description, Planning, Installation, and Operation (553-3001-370) Digital telephones The CS 1000S system supports a wide range of Digital Line cards that provide global telecommunications market interfaces. The CS 1000S system supports the M3900 series Meridian Digital Telephones.

  • Page 22: Interworking/Interoperability

    Attendant consoles The CS 1000S system supports an Attendant PC software console and the M2250 attendant console. The Attendant PC software enables users to perform attendant console and call processing functions on a Windows® PC using a mouse or keyboard.

  • Page 23: System Architecture

    Signaling Server ........Media Gateway 1000S ........

  • Page 24: Hardware Architecture

    Hardware architecture A typical CS 1000S system consists of the following major hardware components: • NTDU30 Call Server • NTDU27 Signaling Server • NTDU14 Media Gateway 1000S (MG 1000S) • NTDU15 Media Gateway 1000S Expander (MG 1000S Expander) • IP Phones •...
  • Page 25 Figure 2 CS 1000S components in a rack NTDU30 Call Server NTDU27 Signaling Server NTDU14 Media Gateway 1000S NTDU15 Media Gateway 1000S Expander Customer Supplied Ethernet Switch Power over LAN unit (optional) Communication Server 1000S 553-AAA2256 Overview...

  • Page 26: Call Server

    If the Call Server fails to respond, each MG 1000S SSC can become its own independent call processor. This means that in the event of Call Server failure, one MG 1000S SSC does not act as a Call Server for the rest of the system; they are all independent.

  • Page 27: Signaling Server

    Signaling Server CS 1000S systems use a Signaling Server. The Signaling Server is an industry-standard, PC-based server that provides a central processor to drive H.323 and Session Initiation Protocol (SIP) signaling for IP Phones and IP Peer Networking. It provides signaling interfaces to the IP network using software components that operate on the VxWorks™...
  • Page 28 IP Phones to the CS 1000S system. Virtual TNs are configured in LD 97. To support IP Peer Networking, dual Call Servers in a CS 1000S must be associated with Signaling Servers that run SIP/H.323 Signaling Gateway software. The number of Signaling Servers required depends on the capacity and level of redundancy required.

  • Page 29: Media Gateway 1000S

    In a normal operational state, the Call Server controls the MG 1000S. The MG 1000S processor provides low-level control of the interface cards installed in the MG 1000S slots, and communicates with the Call Server for feature operation.

  • Page 30: Ethernet Switch (Customer-Supplied)

    The MG 1000S supports a Small System Controller (SSC) card and four slots for flexible configurations of line, trunk, and application cards. Note: You can configure the SSC in the MG 1000S for survivability to assume local call processing if the Call Server cannot be accessed. If the MG 1000S is not configured as survivable, then the MG 1000S is out-of-service until the Call Server is again accessible.

  • Page 31: Software Architecture

    Centralized Automatic Software Upgrade Centralized Automatic Software Upgrade allows a new version of software to be automatically loaded on the MG 1000S after the Call Server software is upgraded. To reduce service impact, a sequential upgrade mode upgrades only one MG 1000S at a time.
  • Page 32 Page 32 of 44 System architecture 553-3031-010 Standard 3.00 August 2005...

  • Page 33: Configuration Options

    CS 1000S bridges the circuit-switched PBX and the IP network, or it can operate in an IP-only network. This consolidation of network traffic simplifies the task of managing communication to a single, efficient IP network.
  • Page 34 • Multiple Sites — central Call Server with branch office users — distributed Call Servers For more information on system deployment options for the CS 1000S, refer to Data Networking for Voice over IP (553-3001-160). 553-3031-010 Standard 3.00 August 2005...

  • Page 35: Single Campus Deployment

    Single campus deployment Figure 3 shows an example of a single campus deployment and its components. Figure 3 Single campus deployments example Rest of World PSTN Media Gateway 1000S Call Server Media Gateway 1000S Expander Campus IP Network Survivable! Survivable! 802.11...
  • Page 36 The single campus deployment example consists of the following: • Call Server • Signaling Server (optionally redundant) • up to four Media Gateways and four Media Gateway Expanders: — can be configured to provide network redundancy — provide a global suite of telephony trunks •...

  • Page 37: Multiple Buildings In A Campus

    Multiple buildings in a campus Figure 4 shows a CS 1000S system distributed across multiple buildings in a campus setting. You can distribute MG 1000S systems and users across a campus IP Network. Figure 4 Multi-site deployment with centralized call processing...

  • Page 38: Multiple Sites

    Multiple sites Figure 5 shows a multi-site deployment with a central Call Server and a branch office. Figure 5 Central Call Server with branch office Central Office Nortel Messaging Server 500 Media Gateway Media Gateway 1000S 1000S Expander Survivable! Survivable!

  • Page 39: Routing To And From Local Branch Offices

    — The MG 1000B is survivable in the event of a WAN failure. — You can configure up to 400 users for survivability. — You can use the Signaling Server virtual trunking to the central site for system management purposes.

  • Page 40: Distributed Call Servers

    Distributed Call Servers Distributed Call Servers are defined as multiple CS 1000S systems. Figure 6 shows an example of multi-site deployment with distributed Call Servers. Figure 6 Distributed Call Servers Nortel Messaging Server 500 Media Gateway Media Gateway 1000S 1000S Expander...

  • Page 41: Reliability Strategies

    If the Call Server is unavailable, you can configure MG 1000S systems as survivable independent systems (automatic database synchronization). Note: If the MG 1000S is not configured as survivable, then it is out of service until the Call Server is in service again. •...
  • Page 42 • If the Primary and Alternate Gatekeeper are unavailable, you can configure a Failsafe Gatekeeper (at each Signaling Server). Figure 7 on Survivable MG 1000S in place. 553-3031-010 Standard 3.00 page 43 illustrates the handling of a network failure with...

  • Page 43: Ip Telephony Node Configuration

    An IP telephony node is a grouping of Voice Gateway Media Cards (and Signaling Servers), regardless of the location of the Voice Gateway Media Cards in the MG 1000S. Therefore, several MG 1000S can belong to the same node. Alternately, each MG 1000S can have its own node.

  • Page 44: Standard 3.00 August

    The survivable MG 1000S (Alternate Call Server) IP address must be on the same ELAN subnet as the Call Server. If the MG 1000S is on a physically different subnet, such as in a different building, then you can use VLANs to keep IP addresses on the same logical subnet.
  • Page 46 Copyright © Nortel Networks Limited 2005 All Rights Reserved Information is subject to change without notice. Nortel Networks reserves the right to make changes in design or components as progress in engineering and manufacturing may warrant. Nortel, Nortel (Logo), the Globemark, This is the Way, This is Nortel (Design mark), SL-1, Meridian 1, and Succession are trademarks of Nortel Networks.

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