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S Registers B-4
S Registers
Table B-2 provides a complete list and descriptions of the
S registers supported by the 3C882 ISDN modem. All
S registers except S0 are the 3Com extended registers.
S registers notated with an asterisk are stored in non-volatile
memory and will not be cleared or returned to the default
value if the ISDN modem is powered down.
Table B-2 S Registers
Registers Descriptions
S0 Auto Answer:
0 — Disabled (default)
X— Number of rings before auto answer.
S50
*
ISDN Switch Signaling Type:
0 — Unknown (default)
1 — AT&T 5ESS Custom
3 — NI1/AT&T 5ESS
6 — NI1/NTI DMS 100 or Siemens EWSD
S51
*
Phone #1
S52
*
Phone #1 Service Profile ID (SPID)
S53
*
Phone #2 (if required by your carrier)
S54
*
Phone #2 Service Profile ID (SPID) (if required by your carrier)
S55 Terminal Endpoint Identifier 1:
Stores the first TEI assigned by the switch. A value of 255 indicates no TEI
has been assigned. This field is read-only.
S56 Terminal Endpoint Identifier 2:
Stores the second TEI assigned by the switch if a second directory number is
required by your carrier. A value of 255 indicates no TEI has been assigned.
This field is read-only.
(continued)