With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cds3ConfigTable
Cisco DS3 Config Table
1.3.6.1.4.1.9.9.132.1.1.1
The DS3 Configuration table. The table has objects for configuring a T3/E3 line.
Back to CISCO-DS3-MIB MIB page.
IPHost Network monitor allows you to monitor cds3ConfigTable 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.