With IPHost Network Monitor you can run simple snmp requests against a ADTRAN device in your network.
adDSUDPdteTROptions
ad DSUD Pdte TR Options
1.3.6.1.4.1.664.2.8.3.2.9
Configures handling of TR lead from Primary DTE
Back to ADTRAN-DSUDPP-MIB MIB page.
IPHost Network monitor allows you to monitor adDSUDPdteTROptions on ADTRAN device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring ADTRAN IP phones right now.