We are using CM 3.11 with unity 2.46 and an H323 Gateway IOS 12.1(3a)XI5. Currently when you call the automated attendant from Outside (Pstn) you do not hear ringback when you are transferred to an extension/DN. We went with the above IOS to remedy a Long ringback tone problem. I read that 12.2(3) can provide ringback for the voicemail scenario, but will this take care of our long ring tone, and progress tones too? Thanks