<s>
Telex	B-Application
is	O
a	O
research	O
anti-censorship	B-Application
system	O
that	O
would	O
allow	O
users	O
to	O
circumvent	O
a	O
censor	O
without	O
alerting	O
the	O
censor	O
to	O
the	O
act	O
of	O
circumvention	O
.	O
</s>
<s>
As	O
of	O
2018	O
,	O
Telex	B-Application
has	O
evolved	O
into	O
refraction	B-Application
networking	I-Application
.	O
</s>
<s>
Telex	B-Application
complements	O
services	O
like	O
Tor	B-Application
(	O
anonymity	O
network	O
)	O
by	O
placing	O
Telex	B-Application
stations	O
in	O
the	O
network	O
infrastructure	O
of	O
free	O
countries	O
.	O
</s>
<s>
A	O
client	O
can	O
create	O
a	O
TLS	B-Protocol
tunnel	O
that	O
is	O
indistinguishable	O
from	O
allowed	O
traffic	O
.	O
</s>
<s>
That	O
way	O
,	O
firewalls	B-Application
in	O
censored	O
countries	O
are	O
neither	O
able	O
to	O
detect	O
nor	O
to	O
block	O
access	O
to	O
specific	O
parts	O
of	O
the	O
Internet	O
,	O
assuming	O
they	O
allow	O
access	O
at	O
all	O
.	O
</s>
