regarding tmx:inuse_transactions stat, it does not seem to exist among tm.stats: # sip-proxy_ctl tm.stats { current: 0 waiting: 0 total: 8 total_local: 0 replied_locally: 2 6xx: 0 5xx: 0 4xx: 1 3xx: 0 2xx: 7 created: 8 freed: 8 delayed_free: 0 } or does it have the same value as created - freed? -- juha