I would also love to see a phone icon for notes during a phone call.

I added a telephone icon so that I can record notes during a phone call.  If this is something others would find useful, maybe it can be added in the next update?  "☎ Phone Call"

Where are you picking up the icons? Would like to expand options available.

Only 4 Emojis? Is there a way to add more?
BTW, If you copy and paste and emoji it will give you the same result

Icons are now fixed, they should insert correctly to the title.

PeterB: No it is due to an issue in the macro upload system that the characters got broken. I emailed the author for the correct characters and will fix the macro once I have them.

The emojis show up as question marks (?). Probable reason: there is a limited number of glyphs that can used in the page title and that will show up as they are. I am not even sure emojis fall into that category. Back to the drawing board :-(