python dialer / python telephony?

[Kenneth Godee]

Does anyone know of any python related projects/libs
that involve some telephone dialing routines......

(low end)
python controls serial port and uses modem to
dial number, user picks up analog phone and drops modem
(very low end, cheap)

(high end)
telephony type boards that do the dialing from a given
number and monitor call status, detect dial tone, busy signal
hang ups, can flash hook, etc.
(very high end, expensive)