<s>
Spark	B-Protocol
is	O
an	O
open-source	O
instant	O
messaging	O
program	O
(	O
based	O
on	O
XMPP	B-Protocol
protocol	I-Protocol
)	O
that	O
allows	O
users	O
to	O
communicate	O
in	O
real	O
time	O
.	O
</s>
<s>
It	O
can	O
be	O
integrated	O
with	O
the	O
Openfire	B-Language
server	O
to	O
provide	O
additional	O
features	O
such	O
as	O
controlling	O
the	O
various	O
Spark	B-Protocol
functionalities	O
from	O
a	O
central	O
management	O
console	O
,	O
or	O
integrating	O
with	O
a	O
proprietary	O
customer	O
support	O
service	O
known	O
as	O
Fastpath	O
which	O
allows	O
its	O
users	O
to	O
interact	O
with	O
the	O
platform	O
using	O
the	O
Spark	B-Protocol
client	O
.	O
</s>
<s>
Being	O
a	O
cross-platform	B-Operating_System
application	O
,	O
Spark	B-Protocol
can	O
run	O
on	O
various	O
systems	O
.	O
</s>
<s>
Installers	O
for	O
Windows	O
,	O
macOS	B-Application
and	O
Linux	B-Application
are	O
available	O
on	O
the	O
official	O
website	O
.	O
</s>
<s>
Previously	O
known	O
as	O
Jive	O
Communicator	O
,	O
Spark	B-Protocol
was	O
designed	O
by	O
Jive	O
Software	O
with	O
a	O
lightweight	O
graphical	O
design	O
and	O
simplistic	O
user	O
interface	O
for	O
business	O
usage	O
.	O
</s>
<s>
Later	O
,	O
it	O
was	O
open-sourced	O
and	O
donated	O
to	O
the	O
Ignite	O
Realtime	O
community	O
,	O
along	O
with	O
Openfire	B-Language
,	O
for	O
further	O
improvement	O
and	O
development	O
.	O
</s>
<s>
Spark	B-Protocol
is	O
based	O
on	O
a	O
popular	O
open-source	O
Smack	O
API	O
library	O
,	O
also	O
developed	O
by	O
Ignite	O
Realtime	O
.	O
</s>
<s>
Other	O
features	O
include	O
shortcuts	O
to	O
access	O
recent	O
and	O
favorite	O
contacts	O
,	O
and	O
Spark	B-Protocol
supports	O
ad	O
hoc	O
and	O
regular	O
group	O
chats	O
.	O
</s>
<s>
Spark	B-Protocol
supports	O
SSL/TLS	B-Protocol
encryption	O
,	O
and	O
additionally	O
provides	O
an	O
option	O
to	O
use	O
Off-the-Record	B-Protocol
Messaging	I-Protocol
for	O
end-to-end	O
encryption	O
.	O
</s>
<s>
Though	O
it	O
is	O
designed	O
to	O
work	O
with	O
XMPP	B-Protocol
servers	O
,	O
it	O
can	O
also	O
integrate	O
with	O
Kraken	O
IM	O
Gateway	O
plugin	O
for	O
Openfire	B-Language
,	O
and	O
provide	O
an	O
option	O
to	O
connect	O
with	O
various	O
other	O
IM	O
networks	O
.	O
</s>
