An Internet telephone
can realize cheap communication by long-distance communication
.
For example,when an international phone call is made in Japan and India.
it will cost
300yen/1minute
.
If it is an internet telephone,though dialup will be carried out to both provider,communication is possible for
20yen/3minutes(1/45 costs of an international phone call)
However, we can't do conversation of important contents by present Internet phone. Because, since the
microphone and the speaker are installed,
a partner's voice will be able to be heard
from the speaker. And there is probrem which
the connected microphone will gather the sound of conversation and will send to a partner's speaker
,when it talks around a PC without noticing having forgotten to cut with an internet telephone etc.
Then the equipment
IPA-100A
which can perform an Internet telephone by
general telephone
was developed so that an Internet telephone can be used with the same feeling as a usual telephone.
( Patent pending )