TTY DIALTYPE

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TTY_DIALTYPE is a system parameter that provides flag bits for dialups. Bit 0 is 1 for United Kingdom dialups and 0 for all others. Bit 1 controls the modem protocol used. Bit 2 controls whether a modem line hangs up 30 seconds after seeing CARRIER if a channel is not assigned to the device. The remaining bits are reserved for future use. See the OpenVMS I/O User's Reference Manual for more information about flag bits.

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