Hi all, Observing that channels are getting stuck in HANGUP state.. So next attempt to make outgoing calls prompts "Channel in use" *freeswitch@mansarover> ftdm core state HANGUP* [s2c1][2:32] in state HANGUP [s2c2][2:33] in state HANGUP [s2c3][2:34] in state HANGUP [s2c4][2:35] in state HANGUP [s2c5][2:36] in state HANGUP [s2c6][2:37] in state HANGUP [s2c7][2:38] in state HANGUP [s2c8][2:39] in state HANGUP [s2c9][2:40] in state HANGUP [s2c10][2:41] in state HANGUP [s2c11][2:42] in state HANGUP [s2c12][2:43] in state HANGUP [s2c13][2:44] in state HANGUP [s2c14][2:45] in state HANGUP [s2c15][2:46] in state HANGUP [s2c17][2:48] in state HANGUP [s2c18][2:49] in state HANGUP [s2c19][2:50] in state HANGUP [s2c20][2:51] in state HANGUP [s2c21][2:52] in state HANGUP [s2c22][2:53] in state HANGUP [s2c23][2:54] in state HANGUP [s2c24][2:55] in state HANGUP [s2c25][2:56] in state HANGUP [s2c27][2:58] in state HANGUP [s2c28][2:59] in state HANGUP [s2c29][2:60] in state HANGUP [s2c30][2:61] in state HANGUP [s2c31][2:62] in state HANGUP Total channels in state HANGUP: 29 *freeswitch@mansarover> ftdm dump wp2 1* span_id: 2 chan_id: 1 physical_span_id: 2 physical_chan_id: 32 physical_status: ok physical_status_red: 0 physical_status_yellow: 0 physical_status_rai: 0 physical_status_blue: 0 physical_status_ais: 0 physical_status_general: 0 signaling_status: UP type: B state: HANGUP last_state: TERMINATING txgain: 0.00 rxgain: 0.00 cid_date: cid_name: cid_num: 01203890380 ani: aniII: dnis: 09819154202 rdnis: cause: NORMAL_CLEARING session: (none) -- States -- -- Function -- -- Location -- -- Time Offset -- DIALING => PROCEED [on_proceeding] [ftmod_libpri.c:1586] 0ms PROCEED => TERMINATING [on_hangup] [ftmod_libpri.c:1444] 4991ms TERMINATING => HANGUP [channel_on_hangup] [mod_freetdm.c:623] 1ms HANGUP => HANGUP_COMPLETE [on_hangup] [ftmod_libpri.c:1458] 153ms HANGUP_COMPLETE => DOWN [state_advance] [ftmod_libpri.c:1266] 0ms DOWN => DIALING [channel_outgoing_channel] [mod_freetdm.c:1767] 757ms DIALING => PROCEED [on_proceeding] [ftmod_libpri.c:1586] 158ms PROCEED => RINGING [on_ringing] [ftmod_libpri.c:1685] 8029ms RINGING => TERMINATING [on_hangup] [ftmod_libpri.c:1477] 35432ms *TERMINATING => HANGUP * [channel_on_hangup] [mod_freetdm.c:623] 0ms Time since last state change:* 1213972ms* *freeswitch@mansarover> status* UP 0 years, 0 days, 0 hours, 54 minutes, 5 seconds, 411 milliseconds, 728 microseconds FreeSWITCH (Version 1.5.15b git acd8d74 2014-10-03 16:48:43Z 64bit) is ready 274 session(s) since startup 1 session(s) - peak 13, last 5min 2 0 session(s) per Sec out of max 30, peak 3, last 5min 3 1000 session(s) max min idle cpu 0.00/99.83 Current Stack Size/Max 240K/8192K So one by one i see channels are blocked in HANGUP state so are not being used for further calls. Can anyone help what could be the problem. I think channel state should move to HANGUP_COMPLETE and then to DOWN. So that it can be used in further calls. Thanks, Vishal.