You need to check if authencication has been enabled on the account AND if the meeting has been setup to allow one user/one device. If so, these limitations will apply i.e. if the users logs into the phone, he wont be able to login anywhere else AT THE SAME TIME.
Interpretation = live translation by people for people We specialise in organising and running events with interpretation. Robert email: email@example.com www.onlineinterpretersworldwide.com