For land line wall wired telephones what are the least expensive long distance carriers that have no monthly fee even if the carrier would only be used once in great while if at all?



For land line wall wired telephones
what are the least expensive long distance carriers that have
.. no monthly fee
even if that carrier would only be used once in great while if at all?

So far there's appears to be an ECG Enhanced Communications Group
but they have a 59cents monthly fee,
(scroll down at...)
http://consumerworld.org
or at
http://consumerworld.org/pages/ecg1.htm
http://www.ecg1.com/

.