With IPHost Network Monitor you can run simple snmp requests against a OneAccess device in your network.
oacVoiceSipGwPhoneIndex
ONEACCESS Voice Sip Gw Phone Index
1.3.6.1.4.1.13191.10.3.5.2.1.3.4.9.1.1
VoIP SIP Phone Index
Back to ONEACCESS-VOICE-MIB MIB page.
IPHost Network monitor allows you to monitor oacVoiceSipGwPhoneIndex on OneAccess device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring OneAccess data routers right now.