MMI handfrees -phone looses connection

[RossH14]

here's one for you

iphone handfree/MMI is working fine.... then for the last 2 weeks it keeps dropping the connection to MMI/handsfree for about 1-2minutes in use
iphone says there is a connection
MMI say no Sim card/phone

reconnect - all well til next call... drops connection after 1-2 minutes

any suggestions???

thx

Ross

[IanH755]

Any new iPhone updates recently as it sounds like a "power save" style setting activated during the call?

[RossH14]

thyanks - will check