Troubleshooting Guide for Cisco Unity Release 5.x (With Microsoft Exchange)
Appendix: Cisco Unity Services and Their Functions
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Cisco Unity Services and Their Functions

Table Of Contents

Cisco Unity Services and Their Functions

Behavior of Cisco Unity Services in a Configuration with Exchange


Cisco Unity Services and Their Functions


Cisco Unity Services are the top level components for the diagnostic traces that are used in troubleshooting. When a diagnostic trace is viewed by using the Cisco Unity Diagnostic tool, the file always contains the Service in the file name immediately following the "diag_". For example, the diagnostic log for the Reports Group will be diag_AvRepDirSvrSvc_YYYYMMDD_HHMMSS_.txt.

Table A-1 Cisco Unity Services 

Service
Function

AvCsGateway

The Gateway service provides a secure interface to the Manager (AvCsMgr) service. It allows external processes to query the state of the Manager, start or stop the Manager, or request internal interfaces to the Manager components (if allowed).

AvCsMgr

The Manager service is the primary Cisco Unity service and the core voice messaging system. It runs the CommServer platform components, provides status on the components, and exposes component interfaces to other internal and external components.

AvCsNodeMgr

The Node Manager service provides the core services for failover. It runs on both the primary and secondary servers, and is responsible for monitoring the status of the servers. It is also responsible for file replication between the servers.

AvDirChangeWriter

The Directory Change Writer service gets messages from the change queue (posted by the AvDSAD and AvDSGlobalCatalog services) and writes them to the Cisco Unity SQL database.

AvDSAD

The Active Directory Datastore service monitors the AD for changes in Cisco Unity objects (users, locations, distribution lists, contacts) on domain controllers, and sends notification of the changes to the Change Writer service. This keeps Cisco Unity synchronized with directory changes made in the Cisco Unity Administrator.

AvDSGlobalCatalog

The Global Catalog Datastore service monitors the AD global catalog for changes in Cisco Unity objects (users, locations, distribution lists, contacts) and sends notification of the changes to the Change Writer service. This keeps Cisco Unity synchronized with directory changes made in the Cisco Unity Administrator.

AvLic

The Licensing service provides secure licensing information to Cisco Unity and authenticated clients. In addition, it monitors the Cisco Unity SQL database and provides dynamic utilization information of per-seat licensing features.

AvMMProxySvr

The Media Master Proxy server provides client authentication and anonymous access to media and resource interfaces. Available to anyone, this service provides application-level authentication of clients running on any platform. After authenticating, it then exposes interfaces for streaming WAV files over the phone or to a client platform.

AvMsgStoreMonitorSvr

The Message Store Monitor service watches subscriber mailboxes on the Cisco Unity server for new or deleted messages. This service then adds an MWI request to the Notifier Queue to turn the subscriber message waiting indicator (MWI) on or off. When message notification is enabled, this service adds events for message notifications through pager or message delivery.

AvNotifierMgr

The Notifier Manager provides notification for MWIs and event notifications through the Notifier and NotifyQ components.

AvRepDirSvrSvc

The Reports service accepts report requests from the Cisco Unity Administrator, extracts data from log files, and obtains dynamic information from Cisco Unity components such as the DOH and Miu. The Reports service also handles report queuing and canceling.

AvSqlChangeWriter

The SQL Change Writer service monitors the Cisco Unity SQL database and requests the applicable directory service to update the directory as needed.

 

The Telephone Record and Playback (TRAP) Connection Server service enables the connection between the subscriber phone and the Cisco Unity server when the subscriber records or plays messages with the Media Master in the Cisco Unity Administrator, the Cisco Unity Assistant, the Cisco Unity Inbox, or Cisco Unity ViewMail for Microsoft Outlook.

AvTtsSvr

The Text to Speech service provides a text-to-audio rendering service that is used by the Call Control/Media (Miu) component to play e-mail messages over the phone.

AvUMRSyncSvr

The AvUMRSyncSvr service is one of the components of the Unity Message Repository (UMR), which is a feature that helps insulate Cisco Unity from volatility in the external network. Voice messages left by unidentified callers are temporarily stored in the UnityMTA directory on the Cisco Unity server. The AvUMRSyncSvr service picks up the messages and hands them off to the message store backend for delivery.

Cisco Unified Performance Information and Diagnostics

The CUPID service gathers performance and diagnostic information about the Cisco Unity server.

Cisco Unity Bellhop
(Exchange 2000 and Exchange 2003 only)

The service enables the Cisco Unity Bellhop feature.

CiscoUnityTdsProxy

The CiscoUnityTdsProxy service provides Cisco Unity database access to Cisco Unity processes that are running in a security context that does not have database rights. The service allows connections to be made via ADO, ODBC, JDBC and other standard APIs that use the Microsoft TDS (Tabular Data Stream) protocol.

CsBMsgConnector

The service monitors the USbms mailbox and processes/activates system broadcast messages that are received.

CsBridgeConnector

The Connector service monitors the UOmni mailbox and synchronizes directory information in both directions between Cisco Unity and an Octel Node (the Bridge).

CsEmsSvc

The Event Monitoring Service polls the Event log and sends e-mail and/or voice mail notifications according to the settings for the events and recipients in the Event Monitoring Service window.

CsVPIMConnector

The VPIM Connector service monitors the UVPIM mailbox and automatically creates, modifies, or deletes VPIM subscribers and their associated AD contacts based on information processed by the Voice Connector when VPIM messages are received.

CuMdbStoreMonitor

The service monitors the availability of the Exchange servers.

CuMessageAgingSvr

The service monitors the age of voice messages.

 

The DOH Media Master Server service streams WAV files when the subscriber records or plays messages with the Media Master in the Cisco Unity Administrator, the Cisco Unity Assistant, the Cisco Unity Inbox, or ViewMail.

Exchange 2000 Voice Connector

The service is responsible for sending messages to and receiving messages from another voice mail system. This service handles VPIM, Bridge and AMIS protocols. Depending on the configuration, this service runs on the Cisco Unity server or on the Exchange server.

License Logging Service

The service monitors the Cisco Unity licenses.

TomCat

The Tomcat service is responsible for generating the web pages for the Cisco Personal Communications Assistant (PCA).


Behavior of Cisco Unity Services in a Configuration with Exchange


Note Services that log on as the account for Cisco Unity directory services are listed as logging on as UnityDirSvc. Services that log on as the account for Cisco Unity message store services are listed as logging on as UnityMsgStoreSvc. The actual account names may be different.


Table A-2 Cisco Unity Services When the Partner Server Is Running Microsoft Exchange 

Service
Logs On As
Startup Mode
Comments
Dependencies

AvCsGateway

UnityMsgStoreSvc

Automatic

Critical; must be restarted if stopped.

Starts and stops AvCsMgr.

MSSQLSERVER

AvCsMgr

UnityMsgStoreSvc

Manual

Critical; started and stopped by the system tray or the Status Monitor via AvCsGateway.

Can be started only by AvCsGateway; should be stopped by AvCsGateway. If AvCsGateway is started by the Status Monitor, AvCsMgr is also started.

Dialogic System Service, MSSQLSERVER, Telephony

AvCsNodeMgr

(Installed only when failover is installed.)

Failover service account; account must be the same on both servers

Automatic

For the active server: Critical; must be restarted if stopped, or failover does not work. If stopped, there is no impact on AvCsMgr, but failover or failback will occur.

For the inactive server: Not critical. If stopped, there is no impact on AvCsMgr.

Remote Procedure Call (RPC)

AvDirChangeWriter

Local System

Automatic

Critical, must be restarted if stopped.

If stopped, there is no impact on AvCsMgr, but it cannot take changes from AD and place them into SQL.

Message Queuing, MSSQLSERVER

AvDSAD

UnityDirSvc

Automatic

Critical; must be restarted if stopped.

If stopped, there is no impact on AvCsMgr, but cannot write to or read from AD.

Message Queuing, MSSQLSERVER

AvDSGlobalCatalog

UnityDirSvc

Automatic

Critical; must be restarted if stopped.

If stopped, there is no impact on AvCsMgr, but cannot read from global catalog.

Message Queuing, MSSQLSERVER

AvLic

Local System

Automatic

 

MSSQLSERVER

AvMMProxySvr

Local System

Automatic

Critical; used by web applications and e-mail clients.

Remote Procedure Call (RPC)

AvMsgStoreMonitorSvr

UnityMsgStoreSvc

Manual

Critical; used for message notification and MWIs.

None

AvNotifierMgr

UnityMsgStoreSvc

Manual

Critical; used for message notification and MWIs.

None

AvRepDirSvrSvc

Local System

Manual

Not critical; can be disabled if reports are not used; AvCsMgr starts Reports during startup if Reports is not already running.

If stopped, there is no impact on AvCsMgr, but it can be disabled if reports are not used.

MSSQLSERVER

AvSqlChangeWriter

Local System

Automatic

Runs during the MSCW bulk synchronization of all SQL and AD data. It may also run at other times.

MSSQLSERVER

AvTtsSvr

Local System

Manual

Not critical.

None

AvUMRSyncSvr

UnityMsgStoreSvc

Manual

Critical; must be restarted if stopped; AvCsMgr starts AvUMRSyncSvr during startup if AvUMRSyncSvr is not already running.

If stopped, there is no impact on AvCsMgr, but messages from unidentified callers remain on the Cisco Unity server and are not handed off to Exchange for delivery; must be restarted if stopped.

MSSQLSERVER

Cisco Unified Performance Information and Diagnostics

Local System

Automatic

Not critical.

If stopped, there is no impact on AvCsMgr.

None (configurable)e

Cisco Unity Bellhop

Local System

Manual

Not critical.

If stopped, there is no impact on AvCsMgr, but Cisco Unity Bellhop does not function.

Remote Procedure Call (RPC)

CiscoUnityTdsProxy

Local System

Automatic

Critical; used by the Cisco Unity Administrator and by the Cisco Personal Communications Assistant.

None

CsBMsgConnector

UnityMsgStoreSvc

Manual

Not critical if system broadcasts are not expected; can be disabled if the server is not intended to receive system broadcast messages that are sent from other Cisco Unity or Cisco Unity Express servers (or from the local Cisco Unity server if addressed to multiple servers).

If stopped, there is no impact on AvCsMgr; however, system broadcast messages that are sent from other Cisco Unity or Cisco Unity Express servers (or from the local Cisco Unity server if addressed to multiple servers) will not be processed or activated, and any messages received in the USbms mailbox (intentionally or inadvertently) will remain there unless they are manually deleted.

MSSQLSERVER

CsBridgeConnector

(Always installed, but started only if the Bridge is licensed.)

UnityMsgStoreSvc

Manual

Not critical; can be disabled if the Bridge is not used; does not start if no Bridge ports are licensed.

If stopped, there is no impact on AvCsMgr, but the Bridge does not function.

MSSQLSERVER

CsEmsSvc

(Not registered as a service until configured.)

UnitySvc

Manual

Not critical.

If stopped, there is no impact on AvCsMgr.

None

CsVPIMConnector

UnityMsgStoreSvc

Manual

Not critical; can be disabled if automatic VPIM subscriber directory updates are disabled on all VPIM delivery locations; does not start if ConfigMgr.exe has not been run with the Create VPIM Dir Account option.

If stopped, there is no impact on AvCsMgr, but automatic VPIM subscriber directory updates will not occur.

MSSQLSERVER

CuMdbStoreMonitor

UnityMsgStoreSvc

Manual

 

MSSQLSERVER

CuMessageAgingSvr

UnityDirSvc

Manual

Not critical; can be disabled if secure messaging is not used.

If stopped, there is no impact on AvCsMgr, but messages will not expire.

None

Exchange 2000 Voice Connector

Local System

Automatic

Not critical; can be disabled if Voice Connector is not used.

If stopped, there is no impact on AvCsMgr, but the Voice Connector will not function.

This service is installed on the Exchange 2000 server; if Exchange is installed on the Cisco Unity server, the service appears.

None

License Logging Service

Local System

Automatic

Critical; used for licensing.

None

TomCat

Local System

Automatic

 

None