S Registers

B-7

Table B-2

S Registers (continued)

 

 

 

 

 

Registers

Descriptions

 

 

 

 

S70*

Dynamic Bandwidth Allocation (DBA):

 

 

0

— DBA disabled

 

 

1

— DBA enabled for outgoing calls only

 

 

2

— DBA enabled for incoming calls only

 

 

3

— Enabled for both incoming and outgoing calls (default)

 

S71

B Channel Protocol:

 

 

0

— QuickSelect (default)

 

 

1

— Async-Sync PPP conversion

 

 

2

— V.120

 

S73

V.120 Frame Type:

 

 

0

— I frame (default)

 

 

1

— UI frame

 

S74

V.120 Maximum Frame Size (range 240–256):

 

 

256 — Maximum frame size of 256 (default)

 

 

248 — Maximum frame size of 248 (for AdTrancompatibility, use 253)

S75

Connection Delay:

 

 

Specifies whether the ISDN modem immediately answers a call or waits 2

 

seconds to answer. If you are using Windows NT, use the two-second delay.

 

0

— No delay (default)

 

 

1

— Two-second delay

 

S76

ISDN Call Waiting:

 

 

0 — Phone 1 Call Waiting Disabled; Phone 2 Call Waiting Disabled

 

1 — Phone 1 Call Waiting Enabled; Phone 2 Call Waiting Disabled

 

(default)

 

 

2 — Phone 1 Call Waiting Disabled; Phone 2 Call Waiting Enabled

 

3 — Phone 1 Call Waiting Enabled; Phone 2 Call Waiting Enabled

S77†

Call Conferencing:

 

 

0 — Disabled

 

 

60 — (default)

 

S78

Call Transfer:

 

 

0 — Disabled

 

 

61 — (default)