ZyXEL Communications 2864 Series, User Manual, Page: 107 / 267

8–21
S49 Bit-mapped register, default: 6:
S50 Inactivity timer in 10-second units. The modem counts when there
is no data flow in or out of the RS-232 serial port. A connection is
disengaged when the counter reaches the preset value.
S51 Bit-mapped register, default: 0:
(1) 2 1 Enables DATA ONLY mode. Auto-detects
V.34/ZyX/V.32bis/V.22bis/V.23/V.21/Bell
103 when answering. If the connection
attempt fails, the modem will continuously
recycle the handshaking procedure until the
S7
register times out.
(0) 1 1 Causes CND information to be reported in
raw data format.
Code Bits Bin. Dec. Description
(7) 0 0 Cellular mode; modem is installed in office.
(Default)
1 128 Cellular mode; modem is connected to a
cellular mobile phone.
(6,5,4) Reserved.
(3 - 0) 000
…
111 0
…
15 Sets cellular mode transmit power -9 to -24
dBm. (See also
S43b2
)
Code Bits Bin. Dec. Description
(7,6) 00 0 Disables data CNG tone detection.
01 64 Reports
RING
for data CNG tone.
10 128 Reports
RING 1
for data CNG tone.
11 192 Reports
RING 3
for data CNG tone.
(5,4) 00 0 Disables Fax CNG tone detection. (Default)
01 16 Reports
RING
for fax CNG tone.
10 32 Reports
RING 1
for fax CNG tone.
11 48 Reports
RING 2
for fax CNG tone.
(3,2) 00 0 Disables DTMF tone detection.
01 4 Reports
RING
for a DTMF tone.
Code Bits Bin. Dec. Description