If your I-Phone was on your wireless network and reachable (and had a phone application that used SIP), then I would think yes.
There still are a lot of questions to ask
• Do you have an SES server that you can register the phone to (that should work in this scenario)
• SIP configuration options in your 46xx files for registration (if you were using CM to register the device)
I know you can change an Avaya IP phone to a SIP endpoint, but I’m not sure how you would register an I-phone to CM.
I welcome any feedback from any other members.
Thanks