3. First install the required files for Pidgin SIPE using below command on centOS # yum install libpurple-devel gcc libtool intltool glib2.0-devel gettext-devel libxml2-devel 4. Now extract downloaded SIPE package # tar -xzvf pidgin-sipe-1.11.2 5. Go to extracted directory & compile the SIPE # ./configure –prefix=/usr # make # sudo make install 6. Now its time to install Pidgin You can install Pidgin directly via yum or by downloading source code, # yum install pidgin 7. Now open pidgin & enter your login credentials server details etc. as shown in below screen shots #pidgin 8. once you open Pidgin it will ask you to add account. So click on add
9. Select Basic tab & select office communicator as a Protocol. And enter your username & password as shown below,
10. Select Advanced tab & enter your Lync server details, in my case its lync.mytricks.in
11. In proxy setting select “No Proxy” & click on ADD.