There is no single trend among our peer institutions. All models are complex and designed to accommodate the specific needs of very individual local environments. Most institutions have a method for rationing network resources. To accommodate a good model will entail high level discussion, a willingness to compromise and some pain and suffering. There is a trend to integrate data and voice network services.
Most institutions use some type of subsidy from the voice network to fund the data network.
Many points and questions emerged from the discussion following Dan Patterson's and Julio Facelli's presentations. If charges for campus telephones become too expensive, departments will switch to using cell phones and we will lose income. Under the current structure everyone is charged the same fee, but services received are not equivalent. The network backbone is a communal resource and requires that everyone participate in its funding because it is critical. If we base income on handsets we are placing ourselves in a precarious position in the long run because handsets will become obsolete.