LINEERR_ Constants

The following is a list of error codes that TAPI can return when invoking operations on lines, addresses, or calls. For more information about how to determine which of these error codes a particular function can return, see the individual function descriptions.

LINEERR_ADDRESSBLOCKED

The specified address is blocked from being dialed on the specified call.

LINEERR_ADDRESSBLOCKED

The target call address has call blocking enabled.

LINEERR_ALLOCATED

The line cannot be opened due to a persistent condition, such as that of a serial port being exclusively opened by another process.

LINEERR_BADDEVICEID

The specified device identifier or line device identifier, such as in a dwDeviceID parameter, is invalid or out of range.

LINEERR_BEARERMODEUNAVAIL

The bearer mode member in LINECALLPARAMS is invalid, the bearer mode specified in LINECALLPARAMS is not available, or the call bearer mode cannot be changed to the specified bearer mode.

LINEERR_BILLINGREJECTED

The billing mode of the call was rejected.

LINEERR_CALLUNAVAIL

All call appearances on the specified address are currently in use.

LINEERR_COMPLETIONOVERRUN

The maximum number of outstanding call completions has been exceeded.

LINEERR_CONFERENCEFULL

The maximum number of parties for a conference has been reached, or the requested number of parties cannot be satisfied.

LINEERR_DIALBILLING

The dialable address parameter contains dialing control characters not processed by the service provider.

LINEERR_DIALDIALTONE

The dialable address parameter contains dialing control characters not processed by the service provider.

LINEERR_DIALPROMPT

The dialable address parameter contains dialing control characters not processed by the service provider.

LINEERR_DIALQUIET

The dialable address parameter contains dialing control characters not processed by the service provider.

LINEERR_DIALVOICEDETECT

Use of the dial modifier (:) is not supported. This value is exposed only to applications that negotiate a TAPI version of 2.0 or later.

LINEERR_DISCONNECTED

The call has been disconnected. This value is exposed only to applications that negotiate a TAPI version of 2.2 or later.

LINEERR_INCOMPATIBLEAPIVERSION

The application requested a TAPI version or version range that is either incompatible with, or cannot be supported by, the Telephony API implementation and the corresponding service provider.

LINEERR_INCOMPATIBLEEXTVERSION

The application requested an extension version range that is either invalid or cannot be supported by the corresponding service provider.

LINEERR_INIFILECORRUPT

The Telephon.ini file cannot be read or understood properly by TAPI because of internal inconsistencies or formatting problems. For example, the [Locations], [Cards], or [Countries] section of the Telephon.ini file may be corrupted or inconsistent.

LINEERR_INUSE

The line device is in use and cannot currently be configured, allow a party to be added, allow a call to be answered, allow a call to be placed, or allow a call to be transferred.

LINEERR_INVALADDRESS

A specified address is either invalid or not allowed. If invalid, the address contains invalid characters or digits, or the destination address contains dialing control characters (W, @, $, or ?) that are not supported by the service provider. If not allowed, the specified address is either not assigned to the specified line or is not valid for address redirection.

LINEERR_INVALADDRESSID

The specified address identifier is either invalid or out of range.

LINEERR_INVALADDRESSMODE

The specified address mode is invalid.

LINEERR_INVALADDRESSSTATE

The specified address state contains one or more bits that are not LINEADDRESSSTATE_ constants.

LINEERR_INVALADDRESSTYPE

The application referenced an address type that is not valid. This value is exposed only to applications that negotiate a TAPI version of 3.0 or later.

LINEERR_INVALAGENTACTIVITY

The specified agent activity is not valid.

LINEERR_INVALAGENTACTIVITY

The application invoking this operation is the target of the indirect handoff. That is, TAPI has determined that the calling application is also the highest priority application for the given media type. This value is exposed only to applications that negotiate a TAPI version of 2.0 or later.

LINEERR_INVALAGENTGROUP

The specified agent group information is not valid or contains errors. The requested action has not been performed.

LINEERR_INVALAGENTGROUP

The application referenced an agent group that is not valid. This value is exposed only to applications that negotiate a TAPI version of 2.0 or later.

LINEERR_INVALAGENTID

The specified agent identifier is invalid.

LINEERR_INVALAGENTID

An invalid agent identifier was used. This value is exposed only to applications that negotiate a TAPI version of 2.0 or later.

LINEERR_INVALAGENTSESSIONSTATE

The agent session state is invalid. This value is exposed only to applications that negotiate a TAPI version of 2.2 or later.

LINEERR_INVALAGENTSTATE

The specified agent state is not valid or contains errors. No changes have been made to the agent state of the specified address.

LINEERR_INVALAGENTSTATE

The application referenced an agent state that is not valid. This value is exposed only to applications that negotiate a TAPI version of 2.0 or later.

LINEERR_INVALAPPHANDLE

The application handle (such as specified by a hLineApp parameter) or the application registration handle is invalid.

LINEERR_INVALAPPNAME

The specified application name is invalid. If an application name is specified by the application, it is assumed that the string does not contain any non-displayable characters, and is zero-terminated.

LINEERR_INVALBEARERMODE

The specified bearer mode is invalid.

LINEERR_INVALCALLCOMPLMODE

The specified completion is invalid.

LINEERR_INVALCALLHANDLE

The specified call handle is not valid. For example, the handle is not NULL but does not belong to the given line. In some cases, the specified call device handle is invalid.

LINEERR_INVALCALLPARAMS

The specified call parameters are invalid.

LINEERR_INVALCALLPRIVILEGE

The specified call privilege parameter is invalid.

LINEERR_INVALCALLSELECT

The specified select parameter is invalid.

LINEERR_INVALCALLSTATE

The current state of a call is not in a valid state for the requested operation.

LINEERR_INVALCALLSTATELIST

The specified call state list is invalid.

LINEERR_INVALCARD

The permanent card identifier specified in dwCard could not be found in any entry in the [Cards] section in the registry.

LINEERR_INVALCOMPLETIONID

The completion identifier is invalid.

LINEERR_INVALCONFCALLHANDLE

The specified call handle for the conference call is invalid or is not a handle for a conference call.

LINEERR_INVALCONSULTCALLHANDLE

The specified consultation call handle is invalid.

LINEERR_INVALCOUNTRYCODE

The specified country or region code is invalid.

LINEERR_INVALDEVICECLASS

The line device has no associated device for the given device class, or the specified line does not support the indicated device class.

LINEERR_INVALDEVICEHANDLE

The line device handle is invalid.

LINEERR_INVALDIALPARAMS

The dialing parameters are invalid.

LINEERR_INVALDIGITLIST

The specified digit list is invalid.

LINEERR_INVALDIGITMODE

The specified digit mode is invalid.

LINEERR_INVALDIGITS

The specified termination digits are not valid.

LINEERR_INVALEXTVERSION

The service provider extension version number is invalid.

LINEERR_INVALFEATURE

The dwFeature parameter is invalid.

LINEERR_INVALFEATURE

The application invoked a feature that is not available on this line.

LINEERR_INVALGROUPID

The specified group identifier is invalid.

LINEERR_INVALLINEHANDLE

The specified call, device, line device, or line handle is invalid.

LINEERR_INVALLINESTATE

The device configuration may not be changed in the current line state. The line may be in use by another application or a dwLineStates parameter contains one or more bits that are not LINEDEVSTATE_ constants. The LINEERR_INVALLINESTATE value can also indicate that the device is disconnected or out of service. These states are indicated by setting the bits corresponding to the LINEDEVSTATUSFLAGS_CONNECTED and LINEDEVSTATUSFLAGS_INSERVICE values to 0 in the dwDevStatusFlags member of the LINEDEVSTATUS structure returned by the lineGetLineDevStatus function.

LINEERR_INVALLOCATION

The permanent location identifier specified in dwLocation could not be found in any entry in the [Locations] section in the registry.

LINEERR_INVALMEDIALIST

The specified media list is invalid.

LINEERR_INVALMEDIAMODE

The list of media types (modes) to be monitored contains invalid information, the specified media type parameter is invalid, or the service provider does not support the specified media type. The media types supported on the line are listed in the dwMediaModes member in the LINEDEVCAPS structure.

LINEERR_INVALMESSAGEID

The number given in dwMessageID is outside the range specified by the dwNumCompletionMessages member in the LINEADDRESSCAPS structure.

LINEERR_INVALPARAM

A parameter or structure that a parameter points to contains invalid information, a country or region code is invalid, a window handle is invalid, or the specified forward list parameter contains invalid information.

LINEERR_INVALPARKID

The park identifier is invalid.

LINEERR_INVALPARKMODE

The specified park mode is invalid.

LINEERR_INVALPASSWORD

The specified password is not correct and the requested action has not been carried out.

LINEERR_INVALPASSWORD

The application used an invalid password. This value is exposed only to applications that negotiate a TAPI version of 2.0 or later.

LINEERR_INVALPOINTER

One or more of the specified pointer parameters (such as lpCallList, lpdwAPIVersion, lpExtensionID, lpdwExtVersion, lphIcon, lpLineDevCaps, and lpToneList) are invalid, or a required pointer to an output parameter is NULL.

LINEERR_INVALPRIVSELECT

An invalid flag or combination of flags was set for the dwPrivileges parameter.

LINEERR_INVALRATE

The specified rate is invalid.

LINEERR_INVALREQUESTMODE

The LINEREQUESTMODE indicator is invalid.

LINEERR_INVALTERMINALID

The specified terminal identifier is invalid.

LINEERR_INVALTERMINALMODE

The specified terminal modes parameter is invalid.

LINEERR_INVALTIMEOUT

Timeouts are not supported or a value falls outside the valid range specified in LINEDEVCAPS.

LINEERR_INVALTONE

The specified custom tone does not represent a valid tone or is made up of too many frequencies or the specified tone structure does not describe a valid tone.

LINEERR_INVALTONELIST

The specified tone list is invalid.

LINEERR_INVALTONEMODE

The specified tone mode parameter is invalid.

LINEERR_INVALTRANSFERMODE

The specified transfer mode parameter is invalid.

LINEERR_LINEMAPPERFAILED

LINEMAPPER was the value passed in the dwDeviceID parameter, but no lines were found that match the requirements specified in the lpCallParams parameter.

LINEERR_NOCONFERENCE

The specified call is not a conference call handle or a participant call.

LINEERR_NODEVICE

The specified device identifier, which was previously valid, is no longer accepted because the associated device has been removed from the system since TAPI was last initialized. Alternately, the line device has no associated device for the given device class.

LINEERR_NODRIVER

Either Tapiaddr.dll could not be located or the telephone service provider for the specified device found that one of its components is missing or corrupt in a way that was not detected at initialization time. The user should be advised to use the Telephony Control Panel to correct the problem.

LINEERR_NOMEM

Insufficient memory to perform the operation, or unable to lock memory.

LINEERR_NOMULTIPLEINSTANCE

A telephony service provider that does not support multiple instances is listed more than once in the [Providers] section in the registry. The application should advise the user to use the Telephony Control Panel to remove the duplicated driver.

LINEERR_NOMULTIPLEINSTANCE

Multiple instances of this service provider are not allowed.

LINEERR_NOREQUEST

There currently is no request pending of the indicated mode, or the application is no longer the highest-priority application for the specified request mode.

LINEERR_NOTOWNER

The application does not have owner privilege to the specified call.

LINEERR_NOTREGISTERED

The application is not registered as a request recipient for the indicated request mode.

LINEERR_OPERATIONFAILED

The operation failed for an unspecified or unknown reason.

LINEERR_OPERATIONUNAVAIL

The operation is not available, such as for the given device or specified line.

LINEERR_RATEUNAVAIL

The service provider currently does not have enough bandwidth available for the specified rate.

LINEERR_REINIT

If TAPI reinitialization has been requested, for example as a result of adding or removing a telephony service provider, then lineInitialize, lineInitializeEx, or lineOpen requests are rejected with this error until the last application shuts down its usage of the API (using lineShutdown), at which time the new configuration becomes effective and applications are once again permitted to call lineInitialize or lineInitializeEx.

LINEERR_REINIT

The application attempted to initialize TAPI twice.

LINEERR_REQUESTOVERRUN

More requests are pending than the device can handle.

LINEERR_RESOURCEUNAVAIL

Insufficient resources to complete the operation. For example, a line cannot be opened due to a dynamic resource overcommitment.

LINEERR_STRUCTURETOOSMALL

The dwTotalSize member of a structure does not specify enough memory to contain the fixed portion of the specified structure.

LINEERR_TARGETNOTFOUND

A target for the call handoff was not found. This can occur if the named application did not open the same line with the LINECALLPRIVILEGE_OWNER bit in the dwPrivileges parameter of lineOpen. Or, in the case of media-mode handoff, no application has opened the same line with the LINECALLPRIVILEGE_OWNER bit in the dwPrivileges parameter of lineOpen and with the media type specified in the dwMediaMode parameter having been specified in the dwMediaModes parameter of lineOpen.

LINEERR_TARGETSELF

The application invoking this operation is the target of the indirect handoff. That is, TAPI has determined that the calling application is also the highest priority application for the given media type.

LINEERR_UNINITIALIZED

The operation was invoked before any application called lineInitialize or lineInitializeEx.

LINEERR_USERCANCELLED

The user cancelled the call. This value is exposed only to applications that negotiate a TAPI version of 2.2 or later.

LINEERR_USERUSERINFOTOOBIG

The string containing user-user information exceeds the maximum number of bytes specified in the dwUUIAcceptSize, dwUUIAnswerSize, dwUUIDropSize, dwUUIMakeCallSize, or dwUUISendUserUserInfoSize member of LINEDEVCAPS, or the string containing user-user information is too long.

Remarks

The values 0xC0000000 through 0xFFFFFFFF are available for device-specific extensions. The values 0x80000000 through 0xBFFFFFFF are reserved, while 0x00000000 through 0x7FFFFFFF are used as request identifiers.

If an application gets an error return that it does not specifically handle (such as an error defined by a device-specific extension), it should treat the error as a LINEERR_OPERATIONFAILED (for an unspecified reason).

When invoking the LINEERR_constants which are new with TAPI 3.0, the Tapierr.mc file must be updated with new messages.

Requirements

TAPI version
Requires TAPI 2.0 or later
Header
Tapi.h

See also

LINEADDRESSCAPS

LINEDEVCAPS

LINEDEVSTATUS

lineGetLineDevStatus

lineInitialize

lineInitializeEx

lineOpen

lineShutdown