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Technical Reference
71
Register Default Function
S34 (Continued) Bit Value Result
5 32 Disable TX level deviation.
6 64 Disable Pre-emphasis.
7 128 Disable Pre-coding.
S35-S37 Reserved
S38 0 Sets an optional delay, in seconds, before a forced hang-
up and clearing of the Transmit buffer when DTR drops
during an ARQ call. This allows time for a remote modem
to acknowledge receipt of all transmitted data before it is
disconnected. The modem immediately hangs up when
DTR drops.
This option only applies to connections terminated by
dropping DTR. If the modem receives the ATH command,
it ignores S38 and immediately hangs up.
S39-S40 Reserved
S41 0 Bit-mapped register setup. To set registers, see
instructions for S13.
Bit Value Result
0 1 Reserved.
1 2 Speakerphone connect message
override (voice products only).
2 4 Reserved.
3 8 Message waiting (voice
products only).
4 16 Reserved.
5 32 Reserved.
6 64 Reserved.
7 128 Reserved.
S42 0 Reserved