<s>
oFono	B-Application
is	O
a	O
free	B-Application
software	I-Application
project	O
for	O
mobile	O
telephony	O
(	O
GSM/UMTS	O
)	O
applications	O
.	O
</s>
<s>
It	O
is	O
built	O
on	O
3GPP	O
standards	O
and	O
uses	O
a	O
high-level	O
D-Bus	B-Language
API	O
for	O
use	O
by	O
telephony	O
applications	O
.	O
</s>
<s>
oFono	B-Application
is	O
free	B-Application
software	I-Application
released	O
under	O
the	O
terms	O
of	O
the	O
GNU	B-License
General	I-License
Public	I-License
License	I-License
v2	O
.	O
</s>
<s>
oFono	B-Application
was	O
jointly	O
announced	O
for	O
Linux	B-Application
by	O
Intel	O
and	O
Nokia	O
on	O
.	O
</s>
<s>
Nokia	O
has	O
since	O
shipped	O
oFono	B-Application
with	O
the	O
MeeGo-based	O
N9	B-Operating_System
.	O
</s>
<s>
After	O
the	O
MeeGo	B-Operating_System
project	O
ended	O
,	O
Intel	O
collaborated	O
with	O
Samsung	O
on	O
a	O
new	O
Linux-based	O
project	O
named	O
Tizen	B-Application
.	O
</s>
<s>
The	O
first	O
release	O
of	O
Tizen	B-Application
contained	O
another	O
telephony	O
stack	O
but	O
in	O
2012	O
they	O
announced	O
to	O
replace	O
that	O
with	O
oFono	B-Application
.	O
</s>
<s>
In	O
early	O
2013	O
Canonical	O
Ltd	O
announced	O
Ubuntu	B-Protocol
Touch	I-Protocol
which	O
also	O
uses	O
oFono	B-Application
.	O
</s>
<s>
As	O
another	O
successor	O
project	O
to	O
MeeGo	B-Operating_System
,	O
Sailfish	B-Operating_System
OS	I-Operating_System
also	O
uses	O
oFono	B-Application
for	O
telephony	O
.	O
</s>
<s>
Since	O
version	O
1.4	O
(	O
released	O
in	O
August	O
2016	O
)	O
,	O
NetworkManager	B-Protocol
can	O
use	O
oFono	B-Application
as	O
a	O
modem	O
manager	O
.	O
</s>
<s>
Maemo	B-Operating_System
Leste	O
is	O
using	O
oFono	B-Application
.	O
</s>
<s>
PipeWire	B-Application
allows	O
using	O
it	O
to	O
connect	O
to	O
Bluetooth	O
headsets	O
since	O
version	O
0.3.8	O
.	O
</s>
