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Voice API for Windows Operating Systems Library Reference — November 2003 481
channel/time slot device information — CT_DEVINFO
Springware Boards
On Springware boards, the fields of the CT_DEVINFO data structure are described as follows:
ct_prodid
Contains a valid product identification number for the device [length: 4 (unsigned long)].
ct_devfamily
Specifies the device family [length: 1 (unsigned char)]. Possible values are:
• CT_DFD41D – D/41D board family
• CT_DFD41E – analog or voice channel of a D/xx or VFX/xx board such as D/41ESC or
VFX/40ESC
• CT_DFSPAN – analog channel such as of a D/160SC-LS board; a voice channel such as
of a D/240SC, D/320SC, D/240SC-T1, D/300SC-E1 or D/160SC-LS board; or a digital
channel such as of a D/240SC-T1 or D/300SC-E1 board
• CT_DFMSI – a station on an MSI board
• CT_DFSCX – SCX160 SCxbus adapter family
ct_devmode
Specifies the device mode field [length: 1 (unsigned char)] that is valid only for a D/xx or
VFX/xx board. Possible values are:
• CT_DMRESOURCE – analog channel not in use
• CT_DMNETWORK – analog channel available to process calls from the telephone
network
ct_nettype
Specifies the type of network interface for the device [length: 1 (unsigned char)]. Possible
values are:
• CT_NTNONE – D/xx or VFX/xx board configured as a resource device; voice channels
are available for call processing; analog channels are disabled.
• CT_NTANALOG – analog and voice devices on board are handling call processing
• CT_NTT1 – T-1 digital network interface
• CT_NTE1 – E-1 digital network interface
• CT_NTMSI – MSI/SC station interface
Note: The dx_getctinfo( ) function does not return a value of ct_nettype = CT_NTNONE
when a D/41ESC or D/41E-PCI board is configured as a resource device. Use
ct_devmode returned from dx_getctinfo( ) to determine the resource mode of the
product. If D41ESC_RESOURCE is set to ON in the Intel Dialogic Configuration
Manager, ct_devmode = CT_DMRESOURCE. If D41ESC_RESOURCE is OFF,
ct_devmode = CT_DMNETWORK.
ct_busmode
Specifies the bus architecture used to communicate with other devices in the system [length: 1
(unsigned char)]. Possible values are:
• CT_BMSCBUS – TDM bus architecture
ct_busencoding
Describes the PCM encoding used on the bus [length: 1 (unsigned char)]. Possible values are:
• CT_BEULAW – Mu-law encoding
• CT_BEALAW – A-law encoding
ct_rfu
Reserved for future use.