With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
linePerfTable
line Performance Table
1.3.6.1.4.1.9.10.26.1.4.2
This table contains line performance parameters. It contains one entry per subscriber line. Only the ATU-C (local) performance parameters are reported in this table.
Back to CISCO-C6200-MIB MIB page.
IPHost Network monitor allows you to monitor linePerfTable on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco firewalls right now.