S-Registers I-7

Register

Default

Function

 

 

 

 

Bit

Value

Result

S53

126

Bit-mapped register. (See Chapter 1, Using the AT

 

 

Command Set, for instructions about how to set

 

 

bit-mapped registers.)

 

 

0

1

Enable dial security.

 

 

1

2

Enable autopass fallback.

 

 

2

4

Enale local-access password

 

 

 

 

protection.

 

 

 

 

Enabling local-access password

 

 

 

 

protection disables the &Zn=s

 

 

 

 

command (which stores up to 10

 

 

 

 

phone numbers) because stored

 

 

 

 

phone numbers occupy the same

 

 

 

 

space in NVRAM as the dialback

 

 

 

 

numbers for Dial Security accounts.

 

 

 

S54

64

Symbol rate bit-mapped register used primarily by 3Com

 

 

Technical Support for debugging purposes.

 

 

Bit

Value

Result

 

 

0

1

Disable 2400 symbol rate.

 

 

1

2

Disable 2743 symbol rate.

 

 

2

4

Disable 2800 symbol rate.

 

 

3

8

Disable 3000 symbol rate.

 

 

4

16

Disable 3200 symbol rate.

 

 

5

32

Disable 3429 symbol rate.

 

 

6

64

Disable V.8 Call Indicate (CI).

 

 

7

128

Disable V.8 Mode.

 

 

 

S55

0

Trellis code bit-mapped register used primarily by 3Com

 

 

Technical Support for debugging purposes.

 

 

Bit

Value

Result

 

 

0

1

Disable 8S-2D mapping.

 

 

1

2

Disable 16S-4D mapping.

 

 

2

4

Disable 32S-2D mapping.

 

 

3

8

Disable 64S-4D mapping.

 

 

4

16

Reserved.

 

 

5

32

Reserved.

 

 

6

64

Reserved.

 

 

7

128

Enable phase roll detection.

 

 

 

 

 

Page 189
Image 189
3Com 56K manual Disable V.8 Call Indicate CI, Reserved, Enable phase roll detection