With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cSipStatsClientNoSupMediaTypeOuts
Cisco Sip Stats Client No Sup Media Type Outs
1.3.6.1.4.1.9.9.152.1.2.4.30
This object reflects the total number of Unsupported Media Type (415) responses sent by the user agent since system startup. Outbound Unsupported Media Type responses indicate that the body of requests received by this system are in a format not supported by the requested resource for the requested method.
Back to CISCO-SIP-UA-MIB MIB page.
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