Great app! I love the multiple profile ability. I am having an issue with the speaker however. The 3CX app seems to get stuck on "speaker" after use. Incoming calls ring through the speaker - even on vibrate mode. The volume button for the ringer is not accessible while 3CX is running - it locks to in-call volume. For a workaround you have to make a cell call and de-select speaker. This works until first call with 3CX then the issue starts over again.