With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cntLineNum
cnt Line Num
1.3.6.1.4.1.351.110.4.3.1.4.1.1.1
This object identifies the DS1/E1 interface. The value for this object must be same as the value of lineNum from dsx1CnfGrpTable.
Back to CISCO-MGX82XX-DSX1-MIB MIB page.
IPHost Network monitor allows you to monitor cntLineNum on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco mobile switches right now.