Master VOS3000 SIP session timer with RFC 4028. Configure SS_SIP_SESSION_TTL, reinvite intervals, and early hangup to prevent ultra-long bills and ghost calls.
VOS3000 Max Call Duration: Important Limit Setting for Cost Control
VOS3000 max call duration limit prevents excessively long calls that drain account balances. Configure SS_MAXCALLDURATION and call remaining time warning to control costs.
VOS3000 No Media Hangup: Smart Auto-Disconnect for Ghost Calls Important
VOS3000 no media hangup automatically disconnects ghost calls when RTP media stops. Configure SS_NOMEDIAHANGUPTIME to prevent billing for dead calls and free capacity.