<s>
TAE	O
(	O
Telekommunikations-Anschluss-Einheit	O
or	O
telecommunications	O
connection	O
unit	O
)	O
is	O
the	O
German	O
standard	O
for	O
telephone	B-Protocol
plugs	I-Protocol
and	O
sockets	O
.	O
</s>
<s>
E-coded	O
connectors	O
that	O
are	O
used	O
in	O
EAD-sockets	B-Protocol
are	O
not	O
intended	O
for	O
telephony	O
applications	O
.	O
</s>
<s>
Adaptors	O
allow	O
for	O
connecting	O
devices	O
with	O
registered	B-Protocol
jacks	I-Protocol
that	O
are	O
more	O
prevalent	O
internationally	O
.	O
</s>
<s>
Today	O
,	O
TAE	B-Protocol
connectors	I-Protocol
are	O
common	O
in	O
Germany	O
and	O
other	O
central	O
European	O
countries	O
like	O
Liechtenstein	O
and	O
Luxembourg	O
.	O
</s>
<s>
As	O
the	O
TAE	B-Protocol
connector	I-Protocol
does	O
not	O
have	O
gold	O
contacts	O
,	O
the	O
contacts	O
may	O
oxidize	O
,	O
which	O
can	O
cause	O
sizzling	O
and	O
crackling	O
noises	O
in	O
analog	O
voice	O
transmission	O
.	O
</s>
