Receive an RCS test number update event

Any time you request some operation to be executed for RCS test number, that operation will be executed asynchronously. After operation is executed, an event is sent. Also, status of test number could be changed as a result of end user action (e.g. user has accepted an invitation to become a tester) and in these situations, an event will be sent too. If you would like to receive these events, you need to subscribe to this event over 'RCS' channel, and specify the 'TEST_NUMBER_UPDATE' event. Refer to Subscriptions Management for additional info.