Hello : While the att_xfer , I collect show the calls and channels info . After press "0" , the calls is Zero , and found the last channel using application "three_way" # during att_xfer , press "0" freeswitch@TTN_Li> show channels API CALL [show(channels)] output: uuid,created,created_epoch,name,state,cid_name,cid_num,ip_addr,dest,application,application_data,dialplan,context,read_codec,read_rate,write_codec,write_rate 33c232f5-e0ff-446e-ad93-8c2f80d61656,2008-09-05 11:00:40,1220583640,sofia/inter2/1529@10.20.1.233,CS_EXECUTE,1529,1529,172.16.93.231,1526,att_xfer,sofia/inter2/1528,XML,inter2,PCMU,8000,PCMU,8000 0d51ddb6-cac2-428b-a310-d9c54f979efc,2008-09-05 11:00:40,1220583640,sofia/inter2/1526,CS_EXCHANGE_MEDIA,Extension 1529,1529,172.16.93.231,1526,playback,local_stream://moh,XML,inter2,PCMU,8000,PCMU,8000 501e6351-6b9f-46a6-81bc-9a2c5a3306fa,2008-09-05 11:00:53,1220583653,sofia/inter2/1528,CS_EXECUTE,Extension 1529,1529,172.16.93.231,1528,three_way,33c232f5-e0ff-446e-ad93-8c2f80d61656,XML,inter2,PCMU,8000,PCMU,8000 3 total. freeswitch@TTN_Li> freeswitch@TTN_Li> show calls API CALL [show(calls)] output: 0 total. freeswitch@TTN_Li> show calls API CALL [show(calls)] output: function,created,created_epoch,caller_cid_name,caller_cid_num,caller_dest_num,caller_chan_name,caller_uuid,callee_cid_name,callee_cid_num,callee_dest_num,callee_chan_name,callee_uuid 2008-09-05 11:00:42,1220583642,switch_ivr_multi_threaded_bridge,1529,1529,1526,sofia/inter2/1529@10.20.1.233,33c232f5-e0ff-446e-ad93-8c2f80d61656,Extension 1529,1529,1526,sofia/inter2/1526,0d51ddb6-cac2-428b-a310-d9c54f979efc 2008-09-05 11:00:56,1220583656,switch_ivr_multi_threaded_bridge,1529,1529,1526,sofia/inter2/1529@10.20.1.233,33c232f5-e0ff-446e-ad93-8c2f80d61656,Extension 1529,1529,1528,sofia/inter2/1528,501e6351-6b9f-46a6-81bc-9a2c5a3306fa 2 total. freeswitch@TTN_Li> freeswitch@TTN_Li> show channels API CALL [show(channels)] output: uuid,created,created_epoch,name,state,cid_name,cid_num,ip_addr,dest,application,application_data,dialplan,context,read_codec,read_rate,write_codec,write_rate 33c232f5-e0ff-446e-ad93-8c2f80d61656,2008-09-05 11:00:40,1220583640,sofia/inter2/1529@10.20.1.233,CS_EXECUTE,1529,1529,172.16.93.231,1526,att_xfer,sofia/inter2/1528,XML,inter2,PCMU,8000,PCMU,8000 0d51ddb6-cac2-428b-a310-d9c54f979efc,2008-09-05 11:00:40,1220583640,sofia/inter2/1526,CS_EXCHANGE_MEDIA,Extension 1529,1529,172.16.93.231,1526,playback,local_stream://moh,XML,inter2,PCMU,8000,PCMU,8000 501e6351-6b9f-46a6-81bc-9a2c5a3306fa,2008-09-05 11:00:53,1220583653,sofia/inter2/1528,CS_EXCHANGE_MEDIA,Extension 1529,1529,172.16.93.231,1528,,,XML,inter2,PCMU,8000,PCMU,8000 3 total. So , what's the no calls changing meaning ? And I simulate the three_way working using scripts, pitty thing is either hanup immediately or someone in hold music. PLS give some advice . ### call test scripts staring n_sess = new Session() ; res = n_sess.originate(n_sess, "sofia/inter2/1528%10.20.1.233" ); // wait for it ... answer n_sess.waitForAnswer(10000); if ( n_sess.ready()) { //never go into here console_log("info", "n_sess uuid: "+ n_sess.uuid + "\n"); n_sess.execute("three_way", session.uuid ) ; }