I am running CCM version 7.1.5. My problem is that when i have video capabilities enabled, i am unable to ring external mobile phones. When i disable this, mobile calls work fine. On previous versions of CCM, you were able to tick a box saying 'retry video call as audio'. This tick box seems not to be available in CCM version 7.1.5(even though it says its available in the help page. This is affecting my 9971 phones. has anyone come across this before?