With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cmlrInstSmsMtCounts
Cisco Multi-layer Routing Inst Sms Mt Counts
1.3.6.1.4.1.9.9.396.1.1.1.9
Count of message signal units with operation type GSM-MAP SMS-MT.
Back to CISCO-ITP-MLR-MIB MIB page.
IPHost Network monitor allows you to monitor cmlrInstSmsMtCounts 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.