Hi,
Since LTE is based over data, a PDP session is established during the attach procedure.
I found out that some phones, especially modern ones, when moving from a Wifi network to LTE with Data Off, accept some traffic which is then charged. What solution do you implement in your network? Also I think that on PDP activation, even though Data is OFF, OCS will assign a chunk of data, and I think this will create a problem especially in Pay Per Use users since OCS will reserve an amount of money and then released once user disconnects from LTE.
What is the ideal way to overcome this problem in LTE?
regards
sandro