conf: revert most of
0db497786f492e352a935e4986b2686daad954a9
Implementation did not work well when multiple endpoints are connected
simultaneously to OCS. Whenever invite to conference is received, SIPE
accepts it immediatelly, not allowing user to choose to join the call
from other location. When SIPE is not compiled with voice support,
this completely blocks user from using voice conferencing while our
client is running.
We must ask user whether to join call, before conference invite is
accepted.