Proof of Fail

The Intent:

On DNS resolution failure, open modem channel, dial number, send TTY control characters and ASCII message (8-N-1 mode).  Hang up modem.

The Outcome:

On DNS resolution failure, open modem channel, scream TTY control characters into phone line, and do absolutely nothing until circuit falls back to off-hook signal.  Hang up modem.

It seems I have some more work to do.

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