Hi, Need help on issue we are facing with FreeSWITCH (FreeTDM endpoint). We have following version of various components: FreeSWITCH: Version 1.2.18 git 98c51ee Wanpipe: 7.0.10 libsng_isdn: 7.29.0 Sangoma Card: A108 firmware v44 Host: Ubuntu 12.04 (3.11.0-13-generic) Problem: FreeTDM endpoint stops working randomly, hence all the calls running get stuck & no new call comes. We start seeing lot of following logs: 2014-07-22 15:02:50.687638 [DEBUG] ftmod_sangoma_isdn_stack_rcv.c:705 [SNGISDN PHY] D-chan 18 : T1/E1/BRI Disconnected 2014-07-22 15:02:50.687638 [DEBUG] ftmod_wanpipe.c:1557 [s18c29][18:30] Got Wanpipe alarms 528 2014-07-22 15:02:50.687638 [DEBUG] mod_freetdm.c:2704 got clear channel sig [ALARM_TRAP] 2014-07-22 15:02:50.687638 [DEBUG] ftmod_sangoma_isdn_stack_rcv.c:705 [SNGISDN PHY] D-chan 18 : T1/E1/BRI Disconnected 2014-07-22 15:02:50.687638 [DEBUG] ftmod_wanpipe.c:1678 [s18c30][18:31] read wanpipe event 2 2014-07-22 15:02:50.687638 [DEBUG] ftmod_wanpipe.c:1557 [s18c30][18:31] Got Wanpipe alarms 528 2014-07-22 15:02:50.687638 [DEBUG] mod_freetdm.c:2704 got clear channel sig [ALARM_TRAP] 2014-07-22 15:02:50.687638 [DEBUG] ftmod_wanpipe.c:1678 [s18c31][18:16] read wanpipe event 2 2014-07-22 15:02:50.687638 [DEBUG] ftmod_wanpipe.c:1557 [s18c31][18:16] Got Wanpipe alarms 528 2014-07-22 15:02:50.687638 [DEBUG] ftmod_sangoma_isdn_stack_rcv.c:705 [SNGISDN PHY] D-chan 18 : T1/E1/BRI Disconnected 2014-07-22 15:02:50.687638 [DEBUG] ftmod_sangoma_isdn_stack_rcv.c:705 [SNGISDN PHY] D-chan 18 : T1/E1/BRI Disconnected 2014-07-22 15:02:50.687638 [DEBUG] mod_freetdm.c:2704 got clear channel sig [ALARM_TRAP] 2014-07-22 15:02:50.687638 [DEBUG] mod_freetdm.c:2704 got clear channel sig [ALARM_TRAP] 2014-07-22 15:02:51.007642 [DEBUG] ftmod_wanpipe.c:1400 [s5c31][5:16] Link status is 1 2014-07-22 15:02:51.667640 [DEBUG] ftmod_wanpipe.c:1400 [s10c31][10:16] Link status is 1 2014-07-22 15:02:51.667640 [DEBUG] ftmod_wanpipe.c:1400 [s21c31][21:16] Link status is 1 2014-07-22 15:02:51.667640 [DEBUG] ftmod_wanpipe.c:1400 [s21c31][21:16] Link status is 1 2014-07-22 15:02:51.667640 [DEBUG] ftmod_wanpipe.c:1400 [s13c31][13:16] Link status is 1 2014-07-22 15:02:51.667640 [DEBUG] ftmod_wanpipe.c:1400 [s10c31][10:16] Link status is 1 2014-07-22 15:02:51.747640 [DEBUG] ftmod_wanpipe.c:1400 [s19c31][19:16] Link status is 1 and finally: 2014-07-22 15:02:58.687642 [DEBUG] ftmod_wanpipe.c:1557 [s18c13][18:13] Got Wanpipe alarms 2080 2014-07-22 15:02:58.687642 [DEBUG] ftmod_wanpipe.c:1405 [s18c26][18:27] Unmapped wanpipe alarms: 2048 2014-07-22 15:02:58.687642 [DEBUG] ftmod_wanpipe.c:1678 [s18c14][18:14] read wanpipe event 2 2014-07-22 15:02:58.687642 [DEBUG] ftmod_wanpipe.c:1557 [s18c14][18:14] Got Wanpipe alarms 2080 2014-07-22 15:02:58.687642 [CRIT] ftmod_sangoma_isdn_stack_rcv. c:1112 sng_isdn-> date: 07/22/2014 time: 15:02:58 2014-07-22 15:02:58.687642 [CRIT] ftmod_sangoma_isdn_stack_rcv.c:1112 sng_isdn-> date: 07/22/2014 time: 15:02:58 2014-07-22 15:02:58.687642 [DEBUG] mod_freetdm.c:2704 got clear channel sig [ALARM_TRAP] 2014-07-22 15:02:58.687642 [DEBUG] ftmod_wanpipe.c:1405 [s18c27][18:28] Unmapped wanpipe alarms: 2048 2014-07-22 15:02:58.687642 [CRIT] ftmod_sangoma_isdn_stack_rcv.c:1112 sng_isdn-> mtss(posix): sw error: ent: 001 inst: 000 proc id: 001 file: /var/lib/hudson/jobs/libsng_isdn-releases/workspace/linux-boxes/master/trillium/ss/ss_msg.c line: 140329466462633 errcode: 00059 errcls: ERRCLS_DEBUG errval: 00000 errdesc: SGetMsg:Failed in SAlloc So we are already in touch with Sangoma team & waiting for resolution, but in case someone else has faced this issue & any suggestions to resolve it will help. -- Thanks & Regards, D P Siddharth Director (Platform) Knowlarity Communications Ph: +919999115231 dp.siddharth@eng.knowlarity.com <emailID@knowlarity.com>