With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cSipCfgMaxSubscriptionOriginate
Cisco Sip Configure Max Subscription Originate
1.3.6.1.4.1.9.9.152.1.1.7.3
This object specifies the maximum number of concurrent SIP subscriptions that a SIP Gateway can originate. Default is Max Dialpeers on platform. Maximum is 2*Max Dialpeers on Platform.
Back to CISCO-SIP-UA-MIB MIB page.
IPHost Network monitor allows you to monitor cSipCfgMaxSubscriptionOriginate 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.