Cisco Cisco IOS Software Release 12.4(4)T
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Modem Always-On;
and Network Element Dial-Out Prevention
and Network Element Dial-Out Prevention
This feature enables a TTY X.28-configured line to interpret characters from network elements without
first having to receive a RING, CTS, or DSR signal. The feature also allows you to require that a DSR
signal be received by the line before the router will interpret characters from network elements or the
network. Finally, this feature enables you to have the TTY line prevent network elements from sending
characters until an appropriate X.25 switched virtual circuit (SVC) has been set up.
first having to receive a RING, CTS, or DSR signal. The feature also allows you to require that a DSR
signal be received by the line before the router will interpret characters from network elements or the
network. Finally, this feature enables you to have the TTY line prevent network elements from sending
characters until an appropriate X.25 switched virtual circuit (SVC) has been set up.
History for the Modem Always-On and Network Element Dial-Out Prevention Feature
Finding Support Information for Platforms and Cisco IOS Software Images
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Contents
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Release
Modification
12.3(11)YN
This feature was introduced.
12.4(4)T
This feature was integrated into Cisco IOS 12.4(4)T.