-pppd program. This option will not work properly if the stderr is
-redirected to the /dev/null location as is the case should pppd be run
-in the 'detached' mode. In that case, use the '-v' option to record
-the session on the SYSLOG device.
+pppd program.
+.TP
+.B \-s
+Use stderr. All log messages from '\-v' and all error messages will be
+sent to stderr.
+.TP
+.B \-S
+Do not use the SYSLOG. By default, error messages are sent to the
+SYSLOG. The use of \-S will prevent both log messages from '\-v' and
+error messages from being sent to the SYSLOG.
+.TP
+.B \-T \fI<phone number>
+Pass in an arbitary string, usually a phone number, that will be
+substituted for the \\T substitution metacharacter in a send string.
+.TP
+.B \-U \fI<phone number 2>
+Pass in a second string, usually a phone number, that will be
+substituted for the \\U substitution metacharacter in a send string.
+This is useful when dialing an ISDN terminal adapter that requires two
+numbers.