Not like you have a choice...

• No way to mute the mic by default
• Speakerphone is on even if the headset is plugged in
• No option to choose VoIP by default
• Volume control on lock screen doesnt work, volume buttons on lock screen dont work, so you have to be in the application to change volume

Basically you connect and fiddle with controls for a while before you get the setup you want. Every time. But better than nothing I suppose.

Long Pause about AT&T Connect Mobile, v11.5.209.2