With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cpmDS1InPackets
cpm DS1 In Packets
1.3.6.1.4.1.9.10.19.1.1.9.1.16
The total number of data packets received over all the DS0 bearer channels within this DS1 since last system re-initialization. This value is a sum of all the cpmInPackets objects in the cpmDS0UsageTable for this DS1. It consists of PPP or PCM voice data packets.
Back to CISCO-POP-MGMT-MIB MIB page.
IPHost Network monitor allows you to monitor cpmDS1InPackets 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.