With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
isdnSignalingEntry
isdn Signaling Entry
1.3.6.1.2.1.10.20.1.3.2.1
An entry in the ISDN Signaling Table. To create a new entry, only isdnSignalingProtocol needs to be specified before isdnSignalingStatus can become active(1).
Back to ISDN-MIB MIB page.
IPHost Network monitor allows you to monitor isdnSignalingEntry 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.