• 8.2.1. DCB Parameters Restricted and Not Supported

8.2. DCB Audio Conferencing API Function Restrictions

R4 for DM3 supports all DCB API functions except those noted in Table 16. List of DCB Audio Conferencing API Functions Restricted and Not Supported. This table lists functions that are either not supported or are supported with certain restrictions on DM3 devices. The nature of the limitation is noted, and if applicable a reference is given to the location of additional details. See the Dialogic Audio Conferencing Software Reference for details on each function.

NOTE:

If you execute a standard DCB function that is not supported by DM3 boards, it produces an EDT_INVMSG ("invalid message") error. If you execute a supported DCB function with a parameter that is not supported on DM3 boards, it produces an EDT_PARAMERR ("invalid parameter") error.

Table 16. List of DCB Audio Conferencing API Functions Restricted and Not Supported

Function Name	Notes
dcb_addtoconf( )	Limitations: See Section 8.2.1. DCB Parameters Restricted and Not Supported. Enhancements for DM3 Boards: See Section 8.5.1. New DCB Conferencing Party Attribute Parameters.
dcb_estconf( )	Limitations: See Section 8.2.1. DCB Parameters Restricted and Not Supported. Enhancements for DM3 Boards: See Section 8.5.1. New DCB Conferencing Party Attribute Parameters.
dcb_GetAtiBits( )	Not supported on DM3 boards. However, this functionality is provided by the dcb_GetAtiBitsEx( ) function, which is supported on DM3 boards only. See Section 8.5.2. New DCB Functions.
dcb_getbrdparm( )	Limitations: Volume control (MSG_VOLDIG) is not supported. Tone Clamping (MSG_TONECLAMP) is not supported on DI products. Enhancements for DM3 Boards: See Section 8.3. Enhancements for dcb_getbrdparm( ).
dcb_getcde( )	Limitations: See Section 8.2.1. DCB Parameters Restricted and Not Supported. Enhancements for DM3 Boards: See Section 8.5.1. New DCB Conferencing Party Attribute Parameters.
dcb_getdigitmsk( )	Not supported on DI products.
dcb_monconf( )	Not supported.
dcb_setbrdparm( )	Limitations: Volume control (MSG_VOLDIG) is not supported. Tone clamping (MSG_TONECLAMP) is not supported on DI products. Enhancements for DM3 Boards: See Section 8.4. Enhancements for dcb_setbrdparm( ).
dcb_setcde( )	Limitations: See Section 8.2.1. DCB Parameters Restricted and Not Supported. Enhancements for DM3 Boards: See Section 8.5.1. New DCB Conferencing Party Attribute Parameters.
dcb_setdigitmsk( )	Not supported on DI products.
dcb_unmonconf( )	Not supported.

8.2.1. DCB Parameters Restricted and Not Supported

The following DCB parameters are either not supported or not applicable to the dcb_addtoconf( ), dcb_estconf( ), dcb_getcde( ), and dcb_setcde( ) functions.

Not Applicable to DM3 Boards:

• MSPA_DIG: Digital front end (not applicable to, and is ignored for, DM3 boards).

Not Supported:

• MSPA_NOAGC: Disable AGC.
• For the dcb_estconf( ) function, conference attribute (conf_attr) parameter MSCA_NN is not supported.

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