We have a client that is looking for a phone that he can bring with him to client meetings and set up a conference call with other sales people.

The hard part is that he wants one the is cellular based...  (yes, I know there may be service/connectivity related issues).

He is using a MiPOw Boomin' portable Bluetooth speaking with built-in microphone.  It works well, but he needs one on a bit larger scale.

Anybody have any thoughts on a similar device or one that we may not have considered?

Thanks in advance!