*99 is not supported on the new voice platform. When latched on to an Airave and *99 is dialed three beeps will be heard. However, instead of hearing “You are now within Airave coverage” an error stating “The number of code you have dialed is incorrect.”, is heard.
This is due to the handset is on the new platform. There is no planned fix for this issue. As long as the customer is hearing the beeps when making/receiving a call they are attached to the Airave.