id.
Properties
id
from
senderId (the identity-stability contract applies to calls too).
status
offer / ringing / reject / timeout / terminate.
chatId?
from).
isGroup?
true when chatId is a group (a group call). Provider-set, like ChatInfo.isGroup.
isVideo?
true for a video call, when the transport says so.
offline?
true when the notification was delivered late (e.g. replayed after the bot
reconnected) rather than while the call was ringing.