Connectivity Monitoring 4 urn:oma:lwm2m:oma:4 Single Optional Network Bearer R Single Mandatory Integer Available Network Bearer R Multiple Mandatory Integer Radio Signal Strength R Single Mandatory Integer dBm Link Quality R Single Optional Integer IP Addresses R Multiple Mandatory String Router IP Addresses R Multiple Optional String Link Utilization R Single Optional Integer 0-100 % APN R Multiple Optional String Cell ID R Single Optional Integer SMNC R Single Optional Integer % SMCC R Single Optional Integer