What do you use for batphone?

[kempoguy80]

Discord is the best. You can voice chat, text chat, and set up a batphone via notification settings pretty easily. My only real complaint is sometimes on the voice side people go full on robot voice for seemingly no reason, but hopefully that will improve as the application matures and more bugs get worked out.

[Illsiff]

Skimmed and didn't see Whatsapp mentioned. I've used it very little but I know some guys who like it a lot.