In halawa correctional facility, what is the rules of previledge to use the phone after altercation to another inmate

It is the same everywhere. When there is an "altercation", the participants are sent to the SHU ("special" housing unit) for a period of time. Depending on the severity of the altercation and how many incident reports they already jhave, they could get one to twelve months in solitary. Phone privileges are significantly reduced in the SHU to one 15-minute call per week. If the altercation was about the phone, the privileges could be suspended indefinitely.