During the second phase of the discovery process, imported devices are probed to identify VoIP topology information. Only devices re-discovered in IP Availability Manager since the last VoIP Availability Manager discovery are scheduled for probing. You can change this default probing behavior by modifying the DiscoverAll parameter as described in the VMware Smart Assurance VoIP Availability Manager Configuration Guide. At the end of the probing, instances of VoIP-specific objects are created in the VoIP Availability Manager repository.

During this phase of the discovery process, VoIP Availability Manager creates instances of the classes identified in Initial topology added to the VoIP Availability Manager repository. The hierarchy of the classes is shown in Appendix A, “VoIP Data Model.”

Table 1. Initial topology added to the VoIP Availability Manager repository

Class name

Description

Vendor applicability

Collections

PortNetwork

A collection of media-gateway port cards that terminate phones and trunks.

Avaya

VoipCluster

A collection of Call Managers that share a common database and provide the VoIP application and network services for an enterprise VoIP system.

All

Physical elements

IPPhone

A physical instrument that acts as a telephone using Voice over IP technology. An IP phone can transmit audio-only information or video and audio information.

All

VoiceMailbox

A personal voice mailbox that stores messages for an individual owner or a general delivery mailbox that distributes broadcast messages to a list of individuals.

Cisco

Card

A package capable of carrying signals and providing a mounting point for other physical components, such as chips, or other cards.

Avaya

Logical elements

VoipEndpoint

A logical VoIP endpoint.

Cisco

CallManagerData

A list of data, provided to a Call Manager, that contains information about the registered, rejected, and unregistered devices for the Call Manager.

Cisco

IPPhoneGroup

A group of IP phones. IP phone groups correspond to topological objects that are vendor-specific:

  • For Avaya, the group includes IP phones configured to register to the same converged call manager.

  • For Cisco, the group is a device pool. It includes IP phones registered to the same call manager group or, for Cisco CallManager Express (CCME), the same call processor.

  • For Nortel, the group corresponds to a zone.

All

Applications

VoipApplication

An application that provides an end-user service, such as a service represented by one of the classes that follow. A discovered application other than voice mail or CTIService is represented as an instance of the VoipApplication class.

All

VoiceMailApplication

An application that provides a voice mail service for Cisco Unity, Cisco Unity Express, and Cisco Unity Connection devices.

All

CTIService

A Computer Telephony Integrated application that integrates voice and data between the Call Manager and the business application environment. Examples include the delivery of Caller ID information using a Personal Computer, and the ability to access voice mail using the Personal Computer.

Cisco

VoiceMailService

An application that answers calls and stores and manages voice messages for individual users.

Cisco

Network services

CallProcessor

A service that provides lightweight call processing, call control, transfer, and call routing functions to local media gateways during a primary Call Manager server failover.

Note:

For example, a discovered instance of the network service provided by the Cisco Survivable Remote Site Telephony (SRST) or Cisco CallManager Express (CCME) is modeled as an instance of the CallProcessor class.

Cisco

GatewayService

An application that converts voice and fax calls between the PSTN and an IP network.

Note:

For example, a discovered instance of the network service provided by the Nortel Voice Gateway Media Card (VGMC) is modeled as an instance of the GatewayService class.

All

MediaService

An application that handles functions such as decoding DTMF tones; transmitting dial tones, busy signals, and announcements; and bridging multiple media streams into a conference.

Cisco, Nortel

SignalingService

An application that provides an enterprise or industry standard signaling protocol, such as the H.323 protocol represented by the H323Service that follows. A discovered signaling service other than H.323 is represented as an instance of SignalingService.

Nortel

H323Service

An application that provides signaling using the open industry standard H.323 signaling protocol.

Cisco

CallManager

A Call Manager application representing a Cisco CallManager, a Cisco Unified CallManager, a Cisco Unified Communications Manager, or a Nortel Call Server.

Cisco, Nortel

ConvergedCallManager

A Call Manager application representing an Avaya Communication Manager.

Avaya

DS1Service

A Digital Signal 1 (DS1) card-service application that provides digital connectivity to the PSTN to enable long distance and local telephone service.

Avaya

H323GateKeeper

A Control LAN (CLAN) card-service application that provides services such as address translation and network access control for H.323 endpoints.

Avaya

IPConnector

An IP Server Interface (IPSI) card-service application that handles gateway-control and call-control messages between a port network (in a G250/350/700 Media Gateway) and the Call Manager.

Avaya

MediaProcessor

A Media Processor (MedPro) card-service application that provides digital-to-analog and analog-to-digital processing services for VoIP calls.

Avaya

VoiceAnnounceService

A Voice Announcements over LAN (VAL) card-service that distributes recorded voice announcements over the LAN for scheduled broadcasts.

Avaya

VoipNetworkService

An application that provides an essential network-connection service.

Cisco

VoipPerformanceManager

A VoIP Management Suite product that ensures that Avaya, Cisco, and Nortel VoIP networks are delivering an acceptable level of telephony services to the service subscribers. All discovered VoIP Performance Manager applications are represented as instances of the VoipPerformanceManager class.

All

Software service

VoipSolution

A software package providing miscellaneous end-user functionality. For example, contact center applications, etc.

Cisco

Processes

VoipProcess

A process that is part of a VoIP application or VoIP network service. All discovered VoIP processes are represented as instances of the VoipProcess class.

All

VoipElement

A process that is part of a VoIP application or VoIP network service.

Cisco