ftp://ftp.internat.freebsd.org/pub/FreeBSD/ports/comms/  direct

[DIR]zssh/  direct  837+ twin directories
[DIR]zmtx-zmrx/  direct  108 twin directories
[DIR]yfklog/  direct  173 twin directories
[DIR]yawmppp/  direct  203+ twin directories
[DIR]yaps/  direct  296+ twin directories
[DIR]yagiuda/  direct  632+ twin directories
[DIR]xwota/  direct  655+ twin directories
[DIR]xnecview/  direct  729+ twin directories
[DIR]xmorse/  direct  76 twin directories
[DIR]xlog/  direct  1862+ twin directories
[DIR]xdx/  direct  1100+ twin directories
[DIR]xcept/  direct  191 twin directories
[DIR]xastir/  direct  1474+ twin directories
[DIR]wy60/  direct  854+ twin directories
[DIR]wwl/  direct  906+ twin directories
[DIR]wsjt/  direct  700+ twin directories
[DIR]vrflash/  direct  739+ twin directories
[DIR]viewfax/  direct  318+ twin directories
[DIR]uticom/  direct  90 twin directories
[DIR]unixcw/  direct  775+ twin directories
[DIR]uird/  direct  103 twin directories
[DIR]twpsk/  direct  792+ twin directories
[DIR]trustedqsl/  direct  713+ twin directories
[DIR]tlf/  direct  1556+ twin directories
[DIR]tkscanfax/  direct  96 twin directories
[DIR]tkhylafax/  direct  456+ twin directories
[DIR]tits/  direct  267+ twin directories
[DIR]tilp2/  direct  344+ twin directories
[DIR]thebridge/  direct  126 twin directories
[DIR]tcpser/  direct  557+ twin directories
[DIR]syncterm/  direct  87 twin directories
[DIR]sredird/  direct  783+ twin directories
[DIR]splat/  direct  913+ twin directories
[DIR]spandsp-devel5/  direct  66 twin directories
[DIR]spandsp-devel/  direct  80 twin directories
[DIR]spandsp/  direct  977+ twin directories
[DIR]soundmodem/  direct  2130+ twin directories
[DIR]snooper/  direct  959+ twin directories
[DIR]smstools3/  direct  92 twin directories
[DIR]smstools/  direct  1295+ twin directories
[DIR]sms_client/  direct  86 twin directories
[DIR]seyon/  direct  1832+ twin directories
[DIR]serialoverip/  direct  89 twin directories
[DIR]ser2net/  direct  820+ twin directories
[DIR]scud/  direct  97 twin directories
[DIR]scmxx/  direct  1141+ twin directories
[DIR]rxtx/  direct  816+ twin directories
[DIR]ruby-termios/  direct  247+ twin directories
[DIR]ruby-serialport/  direct  173 twin directories
[DIR]qsstv/  direct  933+ twin directories