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6. Data Structure Reference
297
Table 32. DCHAN_CFG Field Descriptions and Values
Type Description Values
layer2_access Boolean value used
to configure the
DSL for direct layer
2 access or for full
stack access.
#define LAYER_2_ONLY 0
#define FULL_ISDN_STACK 1
Where:
• LAYER_2_ONLY = ISDN access at
layer 2
(If LAYER_2_ONLY is selected, no
other parameters are required)
• FULL_ISDN_STACK = ISDN access
at L3 call control
switch_type Basic rate protocol
(switch type) for
DSL. Multiple run-
time selectable
switch types are
available.
typedef enum {
ISDN_INVALID_SWITCH=0x80,
ISDN_BRI_5ESS,
ISDN_BRI_DMS100,
ISDN_BRI_NTT,
ISDN_BRI_NET3,
ISDN_BRI_NI1,
ISDN_BRI_NI2
} IsdnSwitchType;
Where:
• ISDN_BRI_5ESS = ATT 5ESS BRI
• ISDN_BRI_DMS100 = Northern
Telecom DMS100 BRI
• ISDN_BRI_NTT = Japanese INS-Net
64 BRI
• ISDN_BRI_NET3 = EuroISDN BRI
• ISDN_BRI_NI1 = National ISDN 1
• ISDN_BRI_NI2 = National ISDN 2