CommCenter has nothing to do with the government at all. It is a central core service in iOS that handles all network connectivity.
A call log of CommCenter roaming simply means your device is unable to establish or hold a connection with your carriers network or one of their defined roaming partners. It can be caused by hardware damage to the cell phone modem or antennae. There are any number of other possible causes. Simply running out of storage can cause it, if the phone is trying to receive and download text messages and has no storage space for them left, for example.
The other issues youmoust have nothing to do with the title of your post, unless this iphone has suffered physical damage and then everything you mention could be a result of hardware damage or failure.
There is is no way to jailbreak any iOS device without having physical access to it, and connecting it to a computer. No iOS device can be remotely jailbroken. And the government has nothing to do with any of this.