Merge commit '44669d31d1d5b094d7b7d3e393281440ea0c9536' * commit '44669d31d1d5b094d7b7d3e393281440ea0c9536': SipAudioCall: remove SipManager dependency.
Merge commit '44669d31d1d5b094d7b7d3e393281440ea0c9536' * commit '44669d31d1d5b094d7b7d3e393281440ea0c9536': SipAudioCall: remove SipManager dependency.