There is a timing issue that makes interacting with the Genie on VCS difficult, particularly when on-network. By the time the device is lifted to the ear, the Genie has already said 'Vocera', which is confusing to the user. Genie sessions could be instigated in speaker mode as a default, and if the purpose was to place a call an on-screen button could be employed to move the call to handset mode once it is established.
Alyssa Sayre
Timing changes have been made to these prompts over the last few versions on VCS to improve this experience.