Lucent Technologies Release 4.0 manual Capacity and Sizing, Voice Ports

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DEFINITY AUDIX System Release 4.0

System Description Pocket Reference 585-300-214

Capacity and Sizing

Voice Ports

Chapter 3 — Capacity and Sizing

Lucent Technologies configures the DEFINITY AUDIX system’s capacity according to the customer’s requirements for the system’s resources.

Customers are divided into two categories of system use:

■Basic usage customers use the DEFINITY AUDIX system mainly for call coverage.

■Advanced usage customers use the system to create and send messages in addition to call coverage.

Whether customers use the system for call coverage or voice mail, their requirements for system resources can be divided into five additional categories—light, medium, heavy, very heavy, and extremely heavy. The values of two variables broadly determine customers’ system requirements:

■Minutes of voice port use per subscriber per day

■Minutes of voice storage required for each subscriber

Table 3-1 shows the categories of users and their average requirements for voice ports and voice storage.

Table 3-1. Average System Requirements per Subscriber

	Daily voice port	Basic voice storage	Advanced voice
	usage (Minutes)	(Minutes)	storage (Minutes)

Light	2	1.3	2.0

Medium	4	1.9	2.8

Heavy	6	2.3	3.4

Very heavy	8	2.6	3.9

Extremely heavy	10	3.0	4.5

Issue 1 May 1999

3-1

Voice Ports

Lucent Technologies configures voice ports for the DEFINITY AUDIX system in two-port increments. Customers can purchase four, six, or eight voice ports with Digital Networking, or up to12 voice ports without Digital Networking. Lucent Technologies ships the system with four voice ports unless the customer orders additional ports.

The DEFINITY AUDIX system’s voice port capacity is measured in Erlangs. An Erlang is a mathematical representation of one busy port. The number of Erlangs a system can carry equals the average number of ports in use. The number of Erlangs the system can carry will vary according to its Grade of Service (GOS).

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Contents Definity Audix System Release Lucent Technologies Web Ordering Information Contents Customer Responsibilities Page Special Terminology About this BookIntended Audiences Supported Product ReleasesViii How to Order Additional DocumentationHow to Comment on This Book TrademarksFeature Overview Features and CompatibilityFeature Overview Features for the Customer OrganizationSavings from a Smaller System Features for the SubscriberIssue Features and Compatibility Feature OverviewAdvantages of Intuity Message Manager Features for the System AdministratorFeatures and Compatibility SwitchesCompatibility Non-native mode.5 Native and Non-native ModeCompatibility Considerations for the Defintiy Audix systemDefinity Audix System Release Switch Releases Compatible with the Definity Audix System Definity Audix System Release Definity Audix System Design and OperationFlashware TN568 Circuit PackHard Disk Drive Port Board EmulationDigital Networking SoftwareNetworking Amis Analog NetworkingHigh-speed Digital Networking Connections Maximum Voice Ports and Digital Networking PortsCydxsl15 LJK DCP Mode 2 Connection Design and Operation MO Disk Drive MO Disk DriveDesign and Operation Faceplate FaceplateOperating Requirements On-board CablesSpace Requirements Sample Location in a SCC Design and Operation Operating RequirementsSample Location in a CMC Environmental Requirements Power RequirementsPhysical Dimensions for the Definity Audix System Power Requirements for the Definity Audix SystemAir Purity Requirements Atmospheric RequirementsDefinity Audix System Release Average System Requirements per Subscriber Capacity and SizingVoice Ports Voice PortsPort Capacities in Erlangs Capacity and Sizing Voice PortsBroadcast Messaging Features that Affect Voice PortsOutcalling Automated AttendantVoice Storage for Announcement Sets Voice StorageCapacity and Sizing Voice Storage Capacity and Sizing Intuity Message Manager Intuity Message ManagerHard disk drive to store voice mail and announcements Backup Limits on the MO Disk Backup Limits on the MO Disk DriveLimits for Intuity Message Manager System Design Appendix a Transition NotesSystem Design Native and Non-native SupportVoice Ports Administration ImpactsDigital Networking Port Migration ImpactsAdministration Impacts Alarm OriginationExternal Modem LEDs Alarm RelayMO Disk Drive Analog Port Emulation Switch IntegrationSwitch Integration DCS NetworkingLimited Availability for Control Link Integration Transition Notes Switch Integration Staff Appendix B Customer ResponsibilitiesStaff Environmental RequirementsTable B-1. Atmospheric Requirements Environmental RequirementsCable Connections Cable ConnectionsTable B-2. Air Purity Requirements Figure B-1. Cable Connections for the External Modem Customer Responsibilities Cable ConnectionsFigure B-2. Lucent- and Customer-provided LAN Connections Definity Audix System Release AB-1 AbbreviationsAB-2 KHz KbpsAB-3 AB-4 MHzAB-5 TTYAbbreviations AB-6 Glossary Boot or Reboot Audio Messaging Interchange Specification AmisAudix Administration and Data Acquisition Package Adap BackupBroadcast Messaging Boot FilesystemBusyout Service Class of Service COSDelivery Operations Support System Doss Configurator Command ModeConfiguration Control Link ModeErrors Digital-Port DP ModeDigital Signal Processor DSP Disconnect Signaling DetectionFlash programmable read-only memory Fprom Guest PasswordField FilesystemsInitialization Initialization and Administration System InadsHeader Hunt GroupMagneto-optical MO Disk Drive Local Maintenance Terminal LMTLogin Local Area Network LANOperations, Administration, and Maintenance OA&M Native ModeNon-native Mode Nonvolatile Random Access Memory NvramReply Loop Escape RebootRemote Field Update ProtocolSubscriber Specific Announcement Set UpdateUpgrade Standalone UtilityGL-12 Voice PortIN-1 IndexIN-2 IN-3 13, B-1 to B-3 power, 2-12 space, 2-9 toIndex IN-4