Bearer selection 13 urn:oma:lwm2m:oma:13 Single Optional Preferred Communications Bearer RW Multiple Optional Integer 8-bit Acceptable RSSI (GSM) RW Single Optional Integer Acceptable RSCP (UMTS) RW Single Optional Integer Acceptable RSRP (LTE) RW Single Optional Integer Acceptable RSSI (1xEV-DO) RW Single Optional Integer Cell lock list RW Single Optional String Operator list RW Single Optional String Operator list mode RW Single Optional Boolean List of available PLMNs R Single Optional String Vendor specific extensions R Single Optional Objlnk Acceptable RSRP (NB-IoT) RW Single Optional Integer Higher Priority PLMN Search Timer RW Single Optional Integer Attach without PDN connection RW Single Optional Boolean