The ability to use Account codes for Ignite call center folks while the caller is on hold or immediately after during the work timer was removed as a defect from 9.1.30. We’d like to see the feature re-added (and of course working properly) in a the next release.
I went to the product line manager and they chased it all the way through research and development to learn that this feature never really was completely implemented because of the communication between MiCC and the MiVoice Business. The MiVoice Business will not accept account codes while on hold. The product line manager suggested that you work with your Mitel partner to create a Design Feature Request and we will take a look at it.