With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
ccmGatewayDChannelNumber
Cisco Call Manager Gateway D Channel Number
1.3.6.1.4.1.9.9.156.1.3.1.1.14
The D-Channel number of the gateway. A value of -1 in this field indicates that the DChannel number is not applicable for this gateway.
Back to CISCO-CCM-MIB MIB page.
IPHost Network monitor allows you to monitor ccmGatewayDChannelNumber 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.
