subscribe
fun subscribeToExternalContactPresences(contactIds: List<String>, onUpdate: (Either<List<ExternalPresence>, SippoResourceError>) -> Unit): ExternalPresenceSubscription
Subscribes to external presence updates for the specified contacts.
Return
Subscription that can be used to stop receiving updates.
Parameters
contact
Contact identifiers whose external presence is requested.
on
Callback invoked with complete external presence snapshots or a terminal SippoResourceError.