I have a problem, I am running an iPhone5 with Lync 2013.

If I am Signed In to Lync Mobile and with Simultaneous ring on, my iPhone will not ring direct, rather the Lync client will notify me of an incoming call.

If I am Not Signed In to Lync Mobile and have Simultaneous ring on, my iPhone will ring as normal.

how can i set to ring on both device simultaneously..