With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
ds0LineNum
ds0 Line Num
1.3.6.1.4.1.351.110.4.7.3.1.1
This object is the identifier of a DS1/E1 Interface on a managed device. The number of entries is 8 in a VISM and VISM-PR card.
Back to CISCO-VISM-DSX0-MIB MIB page.
IPHost Network monitor allows you to monitor ds0LineNum on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco multiplexers right now.