public byte[] DeviceSpecificInfo { get; }

Public ReadOnly Property DeviceSpecificInfo As Byte()
	Get

public:
property array<unsigned char>^ DeviceSpecificInfo {
	array<unsigned char>^ get ();
}

Property Value

Many TSPs provide functionality specific to the telephony system using device specific extensions. Please refer to the TAPI documentation for the telephony hardware to find out about device specific functionality supported by the telephony service provider.

DeviceSpecificInfo property allows the application to retrieve device specific portion of the line device status. The information provided in DeviceSpecificInfo property is described in TAPI documentation for the telephony hardware.

The application has to negotiate a version of the extension supported by the line device using NegotiateDeviceSpecificExtensionVersion(UInt32, UInt32) before opening the line in order to use device specific functionality.

Avaya IP Office system uses this property to provide additional information about the line/extension, including call forwarding/DND information, number of read/new voicemail messages, user login information and more. Please contact us for a code sample that shows how to use this feature of the Avaya IP Office phone system.

Reference