With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cpmISDNCfgActiveDChannels
cpm ISDN Cfg Active D Channels
1.3.6.1.4.1.9.10.19.1.1.13
The number of ISDN signaling channels which are active.
Back to CISCO-POP-MGMT-MIB MIB page.
IPHost Network monitor allows you to monitor cpmISDNCfgActiveDChannels on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco switches right now.
