With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
ccapAppInstHisPSTNOutCallSetupReq
Cisco Call Applications Application Instance History PSTN Out Call Setup Request
1.3.6.1.4.1.9.9.146.1.3.3.1.13
Total number of setup requests placed out to PSTN interface, by this application instance.
Back to CISCO-CALL-APPLICATION-MIB MIB page.
IPHost Network monitor allows you to monitor ccapAppInstHisPSTNOutCallSetupReq 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.