BOTIM APP - how to ADD CONTACT?

to add contact in both team app here you have your contacts tab tap in plus in top right then just exactly similar to whatsapp you just add first last name and then here you need to add phone so that's important and then email ringtone you can change the phone ringtone url address birthday all of this data you can also add your own field so for example here i just want to ask first name and here it is okay probably it won't be possible to add the name without without the phone number but there you have it