[Freeswitch-users] Sangoma card pri not coming up on new architecture servers

Michael Jerris mike at jerris.com
Tue Aug 22 15:08:13 UTC 2017 

That signaling stack is sangoma proprietary, they will need to provide the support for it.

> On Aug 21, 2017, at 7:54 AM, Abhishek Sharma <abhishek.sharma at autoninja.in> wrote:
> 
> Hi John,
> 
> Thanks for the reply, we have been following up with sangoma but we didn't
> get any solution or workaround from them.
> We hoped to find resolution from people who may have faced the same issue.
> Any insight much appreciated
> 
> Thanks
> Abhishek
> 
> -----Original Message-----
> From: John Covici [mailto:covici at ccs.covici.com] 
> Sent: 19 August 2017 06:16
> To: FreeSWITCH Users Help <freeswitch-users at lists.freeswitch.org>
> Subject: Re: [Freeswitch-users] Sangoma card pri not coming up on new
> architecture servers
> 
> I would imagine you would get better answers by speaking to Sangoma.
> 
> On Fri, 18 Aug 2017 03:52:54 -0400,
> Abhishek Sharma wrote:
>> 
>> [1  <multipart/alternative (7bit)>]
>> [1.1  <text/plain; us-ascii (7bit)>]
>> [1.2  <text/html; us-ascii (quoted-printable)>] Hi,
>> 
>> We are facing issues with sangoma card in the new hardware dell server
> (Dell T30) with Xeon processor. 
>> 
>> Also we have observed same issue in i7 based servers.
>> 
>> With same configuration, same pri and same sangoma card, it is working
> fine in an old machine with intel core i3 and i5 processor.
>> 
>> We are using freeswitch v1.6.6 but on upgrading to freeswitch v1.6.19
> issue still persists. 
>> 
>> In this signalling layer does not come up on the new hardware Xeon, intel
> core i7. 
>> 
>> This is a new installation on a brand new dell server (Dell T30). 
>> 
>> freeswitch at internal> ftdm list
>> 
>> +OK
>> 
>> span: 1 (wp1)
>> 
>> type: Sangoma (ISDN)
>> 
>> physical_status: ok
>> 
>> signaling_status: DOWN
>> 
>> chan_count: 31
>> 
>> dialplan: XML
>> 
>> context: public
>> 
>> dial_regex: 
>> 
>> fail_dial_regex: 
>> 
>> Also we get following log trace in freeswitch cli:
>> 
>> 2017-07-27 12:44:50.934840 [INFO] ftmod_sangoma_isdn_stack_rcv.c:825 
>> [SNGISDN Q931] s1: Interface: UP(260): Dchan(285)
>> 
>> 2017-07-27 12:44:50.934840 [DEBUG] ftmod_sangoma_isdn_cntrl.c:45 
>> [s1c1][1:1] Signalling link status changed to UP
>> 
>> 2017-07-27 12:44:50.934840 [DEBUG] ftmod_sangoma_isdn_cntrl.c:45 
>> [s1c2][1:2] Signalling link status changed to UP
>> 
>> 2017-07-27 12:44:50.934840 [INFO] ftmod_sangoma_isdn_stack_rcv.c:675 
>> Received RESTART CFM (dChan:1 ces:0 type:0)
>> 
>> 2017-07-27 12:44:50.934840 [DEBUG] ftmod_sangoma_isdn_cntrl.c:45 
>> [s1c3][1:3] Signalling link status changed to UP
>> 
>> 2017-07-27 12:44:50.934840 [DEBUG] mod_freetdm.c:2705 got clear 
>> channel sig [SIGSTATUS_CHANGED]
>> 
>> 2017-07-27 12:44:50.934840 [DEBUG] ftmod_sangoma_isdn_cntrl.c:45 
>> [s1c4][1:4] Signalling link status changed to UP
>> 
>> 2017-07-27 12:44:50.934840 [INFO] mod_freetdm.c:2781 1:1 signalling 
>> changed to :UP
>> 
>> 2017-07-27 12:44:50.934840 [DEBUG] ftmod_sangoma_isdn_cntrl.c:45 
>> [s1c5][1:5] Signalling link status changed to UP
>> 
>> 2017-07-27 12:44:50.934840 [DEBUG] mod_freetdm.c:2705 got clear 
>> channel sig [SIGSTATUS_CHANGED]
>> 
>> 2017-07-27 12:44:50.934840 [DEBUG] ftmod_sangoma_isdn_cntrl.c:45 
>> [s1c6][1:6] Signalling link status changed to UP
>> 
>> 2017-07-27 12:44:50.934840 [INFO] mod_freetdm.c:2781 1:2 signalling 
>> changed to :UP
>> 
>> 2017-07-27 12:44:50.934840 [DEBUG] mod_freetdm.c:2705 got clear 
>> channel sig [SIGSTATUS_CHANGED]
>> 
>> 2017-07-27 12:44:50.934840 [DEBUG] ftmod_sangoma_isdn_cntrl.c:45 
>> [s1c7][1:7] Signalling link status changed to UP
>> 
>> 2017-07-27 12:44:50.934840 [INFO] mod_freetdm.c:2781 1:3 signalling 
>> changed to :UP
>> 
>> 2017-07-27 12:44:50.934840 [DEBUG] ftmod_sangoma_isdn_cntrl.c:45 
>> [s1c8][1:8] Signalling link status changed to UP
>> 
>> 2017-07-27 12:44:50.934840 [DEBUG] mod_freetdm.c:2705 got clear 
>> channel sig [SIGSTATUS_CHANGED]
>> 
>> 2017-07-27 12:44:50.934840 [INFO] mod_freetdm.c:2781 1:4 signalling 
>> changed to :UP
>> 
>> 2017-07-27 12:44:50.934840 [DEBUG] mod_freetdm.c:2705 got clear 
>> channel sig [SIGSTATUS_CHANGED]
>> 
>> 2017-07-27 12:44:50.934840 [INFO] mod_freetdm.c:2781 1:5 signalling 
>> changed to :UP
>> 
>> 2017-07-27 12:44:50.934840 [DEBUG] ftmod_sangoma_isdn_cntrl.c:45 
>> [s1c9][1:9] Signalling link status changed to UP
>> 
>> 2017-07-27 12:44:50.934840 [DEBUG] mod_freetdm.c:2705 got clear 
>> channel sig [SIGSTATUS_CHANGED]
>> 
>> 2017-07-27 12:44:50.934840 [DEBUG] ftmod_sangoma_isdn_cntrl.c:45 
>> [s1c10][1:10] Signalling link status changed to UP
>> 
>> 2017-07-27 12:44:50.934840 [INFO] mod_freetdm.c:2781 1:6 signalling 
>> changed to :UP
>> 
>> 2017-07-27 12:44:50.934840 [DEBUG] mod_freetdm.c:2705 got clear 
>> channel sig [SIGSTATUS_CHANGED]
>> 
>> 2017-07-27 12:44:50.934840 [DEBUG] ftmod_sangoma_isdn_cntrl.c:45 
>> [s1c11][1:11] Signalling link status changed to UP
>> 
>> 2017-07-27 12:44:50.934840 [INFO] mod_freetdm.c:2781 1:7 signalling 
>> changed to :UP
>> 
>> 2017-07-27 12:44:50.934840 [DEBUG] ftmod_sangoma_isdn_cntrl.c:45 
>> [s1c12][1:12] Signalling link status changed to UP
>> 
>> 2017-07-27 12:44:50.934840 [DEBUG] mod_freetdm.c:2705 got clear 
>> channel sig [SIGSTATUS_CHANGED]
>> 
>> 2017-07-27 12:44:50.934840 [DEBUG] ftmod_sangoma_isdn_cntrl.c:45 
>> [s1c13][1:13] Signalling link status changed to UP
>> 
>> 2017-07-27 12:44:50.934840 [INFO] mod_freetdm.c:2781 1:8 signalling 
>> changed to :UP
>> 
>> 2017-07-27 12:44:50.934840 [DEBUG] mod_freetdm.c:2705 got clear 
>> channel sig [SIGSTATUS_CHANGED]
>> 
>> 2017-07-27 12:44:50.934840 [DEBUG] ftmod_sangoma_isdn_cntrl.c:45 
>> [s1c14][1:14] Signalling link status changed to UP
>> 
>> 2017-07-27 12:44:50.934840 [INFO] mod_freetdm.c:2781 1:9 signalling 
>> changed to :UP
>> 
>> 2017-07-27 12:44:50.934840 [DEBUG] ftmod_sangoma_isdn_cntrl.c:45 
>> [s1c15][1:15] Signalling link status changed to UP
>> 
>> 2017-07-27 12:44:50.934840 [DEBUG] mod_freetdm.c:2705 got clear 
>> channel sig [SIGSTATUS_CHANGED]
>> 
>> 2017-07-27 12:44:50.934840 [DEBUG] ftmod_sangoma_isdn_cntrl.c:45 
>> [s1c16][1:17] Signalling link status changed to UP
>> 
>> 2017-07-27 12:44:50.934840 [INFO] mod_freetdm.c:2781 1:10 signalling 
>> changed to :UP
>> 
>> 2017-07-27 12:44:50.934840 [DEBUG] ftmod_sangoma_isdn_cntrl.c:45 
>> [s1c17][1:18] Signalling link status changed to UP
>> 
>> 2017-07-27 12:44:50.934840 [DEBUG] mod_freetdm.c:2705 got clear 
>> channel sig [SIGSTATUS_CHANGED]
>> 
>> 2017-07-27 12:44:50.934840 [DEBUG] ftmod_sangoma_isdn_cntrl.c:45 
>> [s1c18][1:19] Signalling link status changed to UP
>> 
>> 2017-07-27 12:44:50.934840 [INFO] mod_freetdm.c:2781 1:11 signalling 
>> changed to :UP
>> 
>> 2017-07-27 12:44:50.934840 [DEBUG] ftmod_sangoma_isdn_cntrl.c:45 
>> [s1c19][1:20] Signalling link status changed to UP
>> 
>> 2017-07-27 12:44:50.934840 [DEBUG] mod_freetdm.c:2705 got clear 
>> channel sig [SIGSTATUS_CHANGED]
>> 
>> 2017-07-27 12:44:50.934840 [DEBUG] ftmod_sangoma_isdn_cntrl.c:45 
>> [s1c20][1:21] Signalling link status changed to UP
>> 
>> 2017-07-27 12:44:50.934840 [INFO] mod_freetdm.c:2781 1:12 signalling 
>> changed to :UP
>> 
>> 2017-07-27 12:44:50.934840 [DEBUG] ftmod_sangoma_isdn_cntrl.c:45 
>> [s1c21][1:22] Signalling link status changed to UP
>> 
>> 2017-07-27 12:44:50.934840 [DEBUG] mod_freetdm.c:2705 got clear 
>> channel sig [SIGSTATUS_CHANGED]
>> 
>> 2017-07-27 12:44:50.934840 [DEBUG] ftmod_sangoma_isdn_cntrl.c:45 
>> [s1c22][1:23] Signalling link status changed to UP
>> 
>> 2017-07-27 12:44:50.934840 [INFO] mod_freetdm.c:2781 1:13 signalling 
>> changed to :UP
>> 
>> 2017-07-27 12:44:50.934840 [DEBUG] ftmod_sangoma_isdn_cntrl.c:45 
>> [s1c23][1:24] Signalling link status changed to UP
>> 
>> 2017-07-27 12:44:50.934840 [DEBUG] mod_freetdm.c:2705 got clear 
>> channel sig [SIGSTATUS_CHANGED]
>> 
>> 2017-07-27 12:44:50.934840 [DEBUG] ftmod_sangoma_isdn_cntrl.c:45 
>> [s1c24][1:25] Signalling link status changed to UP
>> 
>> 2017-07-27 12:44:50.934840 [INFO] mod_freetdm.c:2781 1:14 signalling 
>> changed to :UP
>> 
>> 2017-07-27 12:44:50.934840 [DEBUG] ftmod_sangoma_isdn_cntrl.c:45 
>> [s1c25][1:26] Signalling link status changed to UP
>> 
>> 2017-07-27 12:44:50.934840 [DEBUG] mod_freetdm.c:2705 got clear 
>> channel sig [SIGSTATUS_CHANGED]
>> 
>> 2017-07-27 12:44:50.934840 [DEBUG] ftmod_sangoma_isdn_cntrl.c:45 
>> [s1c26][1:27] Signalling link status changed to UP
>> 
>> 2017-07-27 12:44:50.934840 [INFO] mod_freetdm.c:2781 1:15 signalling 
>> changed to :UP
>> 
>> 2017-07-27 12:44:50.934840 [DEBUG] ftmod_sangoma_isdn_cntrl.c:45 
>> [s1c27][1:28] Signalling link status changed to UP
>> 
>> 2017-07-27 12:44:50.934840 [DEBUG] mod_freetdm.c:2705 got clear 
>> channel sig [SIGSTATUS_CHANGED]
>> 
>> 2017-07-27 12:44:50.934840 [INFO] mod_freetdm.c:2781 1:16 signalling 
>> changed to :UP
>> 
>> 2017-07-27 12:44:50.934840 [DEBUG] ftmod_sangoma_isdn_cntrl.c:45 
>> [s1c28][1:29] Signalling link status changed to UP
>> 
>> 2017-07-27 12:44:50.934840 [DEBUG] mod_freetdm.c:2705 got clear 
>> channel sig [SIGSTATUS_CHANGED]
>> 
>> 2017-07-27 12:44:50.934840 [DEBUG] ftmod_sangoma_isdn_cntrl.c:45 
>> [s1c29][1:30] Signalling link status changed to UP
>> 
>> 2017-07-27 12:44:50.934840 [INFO] mod_freetdm.c:2781 1:17 signalling 
>> changed to :UP
>> 
>> 2017-07-27 12:44:50.934840 [DEBUG] ftmod_sangoma_isdn_cntrl.c:45 
>> [s1c30][1:31] Signalling link status changed to UP
>> 
>> 2017-07-27 12:44:50.934840 [DEBUG] mod_freetdm.c:2705 got clear 
>> channel sig [SIGSTATUS_CHANGED]
>> 
>> 2017-07-27 12:44:50.934840 [DEBUG] ftmod_sangoma_isdn_cntrl.c:45 
>> [s1c31][1:16] Signalling link status changed to UP
>> 
>> 2017-07-27 12:44:50.934840 [INFO] mod_freetdm.c:2781 1:18 signalling 
>> changed to :UP
>> 
>> 2017-07-27 12:44:50.934840 [DEBUG] mod_freetdm.c:2705 got clear 
>> channel sig [SIGSTATUS_CHANGED]
>> 
>> 2017-07-27 12:44:50.934840 [INFO] mod_freetdm.c:2781 1:19 signalling 
>> changed to :UP
>> 
>> 2017-07-27 12:44:50.934840 [DEBUG] mod_freetdm.c:2705 got clear 
>> channel sig [SIGSTATUS_CHANGED]
>> 
>> 2017-07-27 12:44:50.934840 [INFO] mod_freetdm.c:2781 1:20 signalling 
>> changed to :UP
>> 
>> 2017-07-27 12:44:50.934840 [DEBUG] mod_freetdm.c:2705 got clear 
>> channel sig [SIGSTATUS_CHANGED]
>> 
>> 2017-07-27 12:44:50.934840 [INFO] mod_freetdm.c:2781 1:21 signalling 
>> changed to :UP
>> 
>> 2017-07-27 12:44:50.934840 [DEBUG] mod_freetdm.c:2705 got clear 
>> channel sig [SIGSTATUS_CHANGED]
>> 
>> 2017-07-27 12:44:50.934840 [INFO] mod_freetdm.c:2781 1:22 signalling 
>> changed to :UP
>> 
>> 2017-07-27 12:44:50.934840 [DEBUG] mod_freetdm.c:2705 got clear 
>> channel sig [SIGSTATUS_CHANGED]
>> 
>> 2017-07-27 12:44:50.934840 [INFO] mod_freetdm.c:2781 1:23 signalling 
>> changed to :UP
>> 
>> 2017-07-27 12:44:50.934840 [DEBUG] mod_freetdm.c:2705 got clear 
>> channel sig [SIGSTATUS_CHANGED]
>> 
>> 2017-07-27 12:44:50.934840 [INFO] mod_freetdm.c:2781 1:24 signalling 
>> changed to :UP
>> 
>> 2017-07-27 12:44:50.934840 [DEBUG] mod_freetdm.c:2705 got clear 
>> channel sig [SIGSTATUS_CHANGED]
>> 
>> 2017-07-27 12:44:50.934840 [INFO] mod_freetdm.c:2781 1:25 signalling 
>> changed to :UP
>> 
>> 2017-07-27 12:44:50.934840 [DEBUG] mod_freetdm.c:2705 got clear 
>> channel sig [SIGSTATUS_CHANGED]
>> 
>> 2017-07-27 12:44:50.934840 [INFO] mod_freetdm.c:2781 1:26 signalling 
>> changed to :UP
>> 
>> 2017-07-27 12:44:50.934840 [DEBUG] mod_freetdm.c:2705 got clear 
>> channel sig [SIGSTATUS_CHANGED]
>> 
>> 2017-07-27 12:44:50.934840 [INFO] mod_freetdm.c:2781 1:27 signalling 
>> changed to :UP
>> 
>> 2017-07-27 12:44:50.934840 [DEBUG] mod_freetdm.c:2705 got clear 
>> channel sig [SIGSTATUS_CHANGED]
>> 
>> 2017-07-27 12:44:50.934840 [INFO] mod_freetdm.c:2781 1:28 signalling 
>> changed to :UP
>> 
>> 2017-07-27 12:44:50.934840 [DEBUG] mod_freetdm.c:2705 got clear 
>> channel sig [SIGSTATUS_CHANGED]
>> 
>> 2017-07-27 12:44:50.934840 [INFO] mod_freetdm.c:2781 1:29 signalling 
>> changed to :UP
>> 
>> 2017-07-27 12:44:50.934840 [DEBUG] mod_freetdm.c:2705 got clear 
>> channel sig [SIGSTATUS_CHANGED]
>> 
>> 2017-07-27 12:44:50.934840 [INFO] mod_freetdm.c:2781 1:30 signalling 
>> changed to :UP
>> 
>> 2017-07-27 12:44:50.934840 [DEBUG] mod_freetdm.c:2705 got clear 
>> channel sig [SIGSTATUS_CHANGED]
>> 
>> 2017-07-27 12:44:50.934840 [INFO] mod_freetdm.c:2781 1:31 signalling 
>> changed to :UP
>> 
>> 2017-07-27 12:44:51.934784 [DEBUG] ftmod_sangoma_isdn_trace.c:117 [SNGISDN
> Q921] wp1 FRAME INCOMING:
>> 
>> format: Unnumbered
>> 
>> sapi: 000 c/r: 1 ea: 0
>> 
>> tei: 000 ea: 1
>> 
>> p/f: 1
>> 
>> cmd: DM - disconnected mode
>> 
>> [ 02 01 7f ]
>> 
>> 2017-07-27 12:44:51.934784 [INFO] ftmod_sangoma_isdn_stack_rcv.c:825 
>> [SNGISDN Q931] s1: Interface: UP(260): Dchan(285)
>> 
>> 2017-07-27 12:44:51.934784 [INFO] ftmod_sangoma_isdn_stack_rcv.c:675 
>> Received RESTART CFM (dChan:1 ces:0 type:0)
>> 
>> 2017-07-27 12:44:51.934784 [DEBUG] ftmod_sangoma_isdn_cntrl.c:45 
>> [s1c1][1:1] Signalling link status changed to UP
>> 
>> 2017-07-27 12:44:51.934784 [DEBUG] ftmod_sangoma_isdn_cntrl.c:45 
>> [s1c2][1:2] Signalling link status changed to UP
>> 
>> 2017-07-27 12:44:51.934784 [DEBUG] ftmod_sangoma_isdn_cntrl.c:45 
>> [s1c3][1:3] Signalling link status changed to UP
>> 
>> 2017-07-27 12:44:51.934784 [DEBUG] ftmod_sangoma_isdn_cntrl.c:45 
>> [s1c4][1:4] Signalling link status changed to UP
>> 
>> 2017-07-27 12:44:51.934784 [DEBUG] ftmod_sangoma_isdn_cntrl.c:45 
>> [s1c5][1:5] Signalling link status changed to UP
>> 
>> 2017-07-27 12:44:51.934784 [DEBUG] mod_freetdm.c:2705 got clear 
>> channel sig [SIGSTATUS_CHANGED]
>> 
>> 2017-07-27 12:44:51.934784 [DEBUG] ftmod_sangoma_isdn_cntrl.c:45 
>> [s1c6][1:6] Signalling link status changed to UP
>> 
>> 2017-07-27 12:44:51.934784 [DEBUG] ftmod_sangoma_isdn_cntrl.c:45 
>> [s1c7][1:7] Signalling link status changed to UP
>> 
>> 2017-07-27 12:44:51.934784 [INFO] mod_freetdm.c:2781 1:1 signalling 
>> changed to :UP
>> 
>> 2017-07-27 12:44:51.934784 [DEBUG] ftmod_sangoma_isdn_cntrl.c:45 
>> [s1c8][1:8] Signalling link status changed to UP
>> 
>> 2017-07-27 12:44:51.934784 [DEBUG] mod_freetdm.c:2705 got clear 
>> channel sig [SIGSTATUS_CHANGED]
>> 
>> 2017-07-27 12:44:51.934784 [DEBUG] ftmod_sangoma_isdn_cntrl.c:45 
>> [s1c9][1:9] Signalling link status changed to UP
>> 
>> 2017-07-27 12:44:51.934784 [INFO] mod_freetdm.c:2781 1:2 signalling 
>> changed to :UP
>> 
>> 2017-07-27 12:44:51.934784 [DEBUG] ftmod_sangoma_isdn_cntrl.c:45 
>> [s1c10][1:10] Signalling link status changed to UP
>> 
>> 2017-07-27 12:44:51.934784 [DEBUG] mod_freetdm.c:2705 got clear 
>> channel sig [SIGSTATUS_CHANGED]
>> 
>> 2017-07-27 12:44:51.934784 [INFO] mod_freetdm.c:2781 1:3 signalling 
>> changed to :UP
>> 
>> 2017-07-27 12:44:51.934784 [DEBUG] ftmod_sangoma_isdn_cntrl.c:45 
>> [s1c11][1:11] Signalling link status changed to UP
>> 
>> 2017-07-27 12:44:51.934784 [DEBUG] mod_freetdm.c:2705 got clear 
>> channel sig [SIGSTATUS_CHANGED]
>> 
>> 2017-07-27 12:44:51.934784 [INFO] mod_freetdm.c:2781 1:4 signalling 
>> changed to :UP
>> 
>> 2017-07-27 12:44:51.934784 [DEBUG] ftmod_sangoma_isdn_cntrl.c:45 
>> [s1c12][1:12] Signalling link status changed to UP
>> 
>> 2017-07-27 12:44:51.934784 [DEBUG] mod_freetdm.c:2705 got clear 
>> channel sig [SIGSTATUS_CHANGED]
>> 
>> 2017-07-27 12:44:51.934784 [INFO] mod_freetdm.c:2781 1:5 signalling 
>> changed to :UP
>> 
>> 2017-07-27 12:44:51.934784 [DEBUG] ftmod_sangoma_isdn_cntrl.c:45 
>> [s1c13][1:13] Signalling link status changed to UP
>> 
>> 2017-07-27 12:44:51.934784 [DEBUG] mod_freetdm.c:2705 got clear 
>> channel sig [SIGSTATUS_CHANGED]
>> 
>> 2017-07-27 12:44:51.934784 [DEBUG] ftmod_sangoma_isdn_cntrl.c:45 
>> [s1c14][1:14] Signalling link status changed to UP
>> 
>> 2017-07-27 12:44:51.934784 [INFO] mod_freetdm.c:2781 1:6 signalling 
>> changed to :UP
>> 
>> 2017-07-27 12:44:51.934784 [DEBUG] mod_freetdm.c:2705 got clear 
>> channel sig [SIGSTATUS_CHANGED]
>> 
>> 2017-07-27 12:44:51.934784 [DEBUG] ftmod_sangoma_isdn_cntrl.c:45 
>> [s1c15][1:15] Signalling link status changed to UP
>> 
>> 2017-07-27 12:44:51.934784 [INFO] mod_freetdm.c:2781 1:7 signalling 
>> changed to :UP
>> 
>> 2017-07-27 12:44:51.934784 [DEBUG] ftmod_sangoma_isdn_cntrl.c:45 
>> [s1c16][1:17] Signalling link status changed to UP
>> 
>> 2017-07-27 12:44:51.934784 [DEBUG] mod_freetdm.c:2705 got clear 
>> channel sig [SIGSTATUS_CHANGED]
>> 
>> 2017-07-27 12:44:51.934784 [DEBUG] ftmod_sangoma_isdn_cntrl.c:45 
>> [s1c17][1:18] Signalling link status changed to UP
>> 
>> 2017-07-27 12:44:51.934784 [INFO] mod_freetdm.c:2781 1:8 signalling 
>> changed to :UP
>> 
>> 2017-07-27 12:44:51.934784 [DEBUG] ftmod_sangoma_isdn_cntrl.c:45 
>> [s1c18][1:19] Signalling link status changed to UP
>> 
>> 2017-07-27 12:44:51.934784 [DEBUG] mod_freetdm.c:2705 got clear 
>> channel sig [SIGSTATUS_CHANGED]
>> 
>> 2017-07-27 12:44:51.934784 [DEBUG] ftmod_sangoma_isdn_cntrl.c:45 
>> [s1c19][1:20] Signalling link status changed to UP
>> 
>> 2017-07-27 12:44:51.934784 [INFO] mod_freetdm.c:2781 1:9 signalling 
>> changed to :UP
>> 
>> 2017-07-27 12:44:51.934784 [DEBUG] mod_freetdm.c:2705 got clear 
>> channel sig [SIGSTATUS_CHANGED]
>> 
>> 2017-07-27 12:44:51.934784 [DEBUG] ftmod_sangoma_isdn_cntrl.c:45 
>> [s1c20][1:21] Signalling link status changed to UP
>> 
>> 2017-07-27 12:44:51.934784 [INFO] mod_freetdm.c:2781 1:10 signalling 
>> changed to :UP
>> 
>> 2017-07-27 12:44:51.934784 [DEBUG] mod_freetdm.c:2705 got clear 
>> channel sig [SIGSTATUS_CHANGED]
>> 
>> 2017-07-27 12:44:51.934784 [DEBUG] ftmod_sangoma_isdn_cntrl.c:45 
>> [s1c21][1:22] Signalling link status changed to UP
>> 
>> 2017-07-27 12:44:51.934784 [INFO] mod_freetdm.c:2781 1:11 signalling 
>> changed to :UP
>> 
>> 2017-07-27 12:44:51.934784 [DEBUG] ftmod_sangoma_isdn_cntrl.c:45 
>> [s1c22][1:23] Signalling link status changed to UP
>> 
>> 2017-07-27 12:44:51.934784 [DEBUG] mod_freetdm.c:2705 got clear 
>> channel sig [SIGSTATUS_CHANGED]
>> 
>> 2017-07-27 12:44:51.934784 [DEBUG] ftmod_sangoma_isdn_cntrl.c:45 
>> [s1c23][1:24] Signalling link status changed to UP
>> 
>> 2017-07-27 12:44:51.934784 [INFO] mod_freetdm.c:2781 1:12 signalling 
>> changed to :UP
>> 
>> 2017-07-27 12:44:51.934784 [DEBUG] ftmod_sangoma_isdn_cntrl.c:45 
>> [s1c24][1:25] Signalling link status changed to UP
>> 
>> 2017-07-27 12:44:51.934784 [DEBUG] mod_freetdm.c:2705 got clear 
>> channel sig [SIGSTATUS_CHANGED]
>> 
>> 2017-07-27 12:44:51.934784 [DEBUG] ftmod_sangoma_isdn_cntrl.c:45 
>> [s1c25][1:26] Signalling link status changed to UP
>> 
>> 2017-07-27 12:44:51.934784 [INFO] mod_freetdm.c:2781 1:13 signalling 
>> changed to :UP
>> 
>> 2017-07-27 12:44:51.934784 [DEBUG] ftmod_sangoma_isdn_cntrl.c:45 
>> [s1c26][1:27] Signalling link status changed to UP
>> 
>> 2017-07-27 12:44:51.934784 [DEBUG] mod_freetdm.c:2705 got clear 
>> channel sig [SIGSTATUS_CHANGED]
>> 
>> 2017-07-27 12:44:51.934784 [DEBUG] ftmod_sangoma_isdn_cntrl.c:45 
>> [s1c27][1:28] Signalling link status changed to UP
>> 
>> 2017-07-27 12:44:51.934784 [INFO] mod_freetdm.c:2781 1:14 signalling 
>> changed to :UP
>> 
>> 2017-07-27 12:44:51.934784 [DEBUG] mod_freetdm.c:2705 got clear 
>> channel sig [SIGSTATUS_CHANGED]
>> 
>> 2017-07-27 12:44:51.934784 [DEBUG] ftmod_sangoma_isdn_cntrl.c:45 
>> [s1c28][1:29] Signalling link status changed to UP
>> 
>> 2017-07-27 12:44:51.934784 [INFO] mod_freetdm.c:2781 1:15 signalling 
>> changed to :UP
>> 
>> 2017-07-27 12:44:51.934784 [DEBUG] ftmod_sangoma_isdn_cntrl.c:45 
>> [s1c29][1:30] Signalling link status changed to UP
>> 
>> 2017-07-27 12:44:51.934784 [DEBUG] mod_freetdm.c:2705 got clear 
>> channel sig [SIGSTATUS_CHANGED]
>> 
>> 2017-07-27 12:44:51.934784 [INFO] mod_freetdm.c:2781 1:16 signalling 
>> changed to :UP
>> 
>> 2017-07-27 12:44:51.934784 [DEBUG] ftmod_sangoma_isdn_cntrl.c:45 
>> [s1c30][1:31] Signalling link status changed to UP
>> 
>> 2017-07-27 12:44:51.934784 [DEBUG] mod_freetdm.c:2705 got clear 
>> channel sig [SIGSTATUS_CHANGED]
>> 
>> 2017-07-27 12:44:51.934784 [DEBUG] ftmod_sangoma_isdn_cntrl.c:45 
>> [s1c31][1:16] Signalling link status changed to UP
>> 
>> 2017-07-27 12:44:51.934784 [INFO] mod_freetdm.c:2781 1:17 signalling 
>> changed to :UP
>> 
>> 2017-07-27 12:44:51.934784 [DEBUG] mod_freetdm.c:2705 got clear 
>> channel sig [SIGSTATUS_CHANGED]
>> 
>> 2017-07-27 12:44:51.934784 [INFO] mod_freetdm.c:2781 1:18 signalling 
>> changed to :UP
>> 
>> 2017-07-27 12:44:51.934784 [DEBUG] mod_freetdm.c:2705 got clear 
>> channel sig [SIGSTATUS_CHANGED]
>> 
>> 2017-07-27 12:44:51.934784 [INFO] mod_freetdm.c:2781 1:19 signalling 
>> changed to :UP
>> 
>> 2017-07-27 12:44:51.934784 [DEBUG] mod_freetdm.c:2705 got clear 
>> channel sig [SIGSTATUS_CHANGED]
>> 
>> 2017-07-27 12:44:51.934784 [INFO] mod_freetdm.c:2781 1:20 signalling 
>> changed to :UP
>> 
>> 2017-07-27 12:44:51.934784 [DEBUG] mod_freetdm.c:2705 got clear 
>> channel sig [SIGSTATUS_CHANGED]
>> 
>> 2017-07-27 12:44:51.934784 [INFO] mod_freetdm.c:2781 1:21 signalling 
>> changed to :UP
>> 
>> 2017-07-27 12:44:51.934784 [DEBUG] mod_freetdm.c:2705 got clear 
>> channel sig [SIGSTATUS_CHANGED]
>> 
>> 2017-07-27 12:44:51.934784 [INFO] mod_freetdm.c:2781 1:22 signalling 
>> changed to :UP
>> 
>> 2017-07-27 12:44:51.934784 [DEBUG] mod_freetdm.c:2705 got clear 
>> channel sig [SIGSTATUS_CHANGED]
>> 
>> 2017-07-27 12:44:51.934784 [INFO] mod_freetdm.c:2781 1:23 signalling 
>> changed to :UP
>> 
>> 2017-07-27 12:44:51.934784 [DEBUG] mod_freetdm.c:2705 got clear 
>> channel sig [SIGSTATUS_CHANGED]
>> 
>> 2017-07-27 12:44:51.934784 [INFO] mod_freetdm.c:2781 1:24 signalling 
>> changed to :UP
>> 
>> 2017-07-27 12:44:51.934784 [DEBUG] mod_freetdm.c:2705 got clear 
>> channel sig [SIGSTATUS_CHANGED]
>> 
>> 2017-07-27 12:44:51.934784 [INFO] mod_freetdm.c:2781 1:25 signalling 
>> changed to :UP
>> 
>> 2017-07-27 12:44:51.934784 [DEBUG] mod_freetdm.c:2705 got clear 
>> channel sig [SIGSTATUS_CHANGED]
>> 
>> 2017-07-27 12:44:51.934784 [INFO] mod_freetdm.c:2781 1:26 signalling 
>> changed to :UP
>> 
>> 2017-07-27 12:44:51.934784 [DEBUG] mod_freetdm.c:2705 got clear 
>> channel sig [SIGSTATUS_CHANGED]
>> 
>> 2017-07-27 12:44:51.934784 [INFO] mod_freetdm.c:2781 1:27 signalling 
>> changed to :UP
>> 
>> 2017-07-27 12:44:51.934784 [DEBUG] mod_freetdm.c:2705 got clear 
>> channel sig [SIGSTATUS_CHANGED]
>> 
>> 2017-07-27 12:44:51.934784 [INFO] mod_freetdm.c:2781 1:28 signalling 
>> changed to :UP
>> 
>> 2017-07-27 12:44:51.934784 [DEBUG] mod_freetdm.c:2705 got clear 
>> channel sig [SIGSTATUS_CHANGED]
>> 
>> 2017-07-27 12:44:51.934784 [INFO] mod_freetdm.c:2781 1:29 signalling 
>> changed to :UP
>> 
>> 2017-07-27 12:44:51.934784 [DEBUG] mod_freetdm.c:2705 got clear 
>> channel sig [SIGSTATUS_CHANGED]
>> 
>> 2017-07-27 12:44:51.934784 [INFO] mod_freetdm.c:2781 1:30 signalling 
>> changed to :UP
>> 
>> 2017-07-27 12:44:51.934784 [DEBUG] mod_freetdm.c:2705 got clear 
>> channel sig [SIGSTATUS_CHANGED]
>> 
>> 2017-07-27 12:44:51.934784 [INFO] mod_freetdm.c:2781 1:31 signalling 
>> changed to :UP
>> 
>> 2017-07-27 12:44:52.934775 [DEBUG] ftmod_sangoma_isdn_trace.c:117 [SNGISDN
> Q921] wp1 FRAME INCOMING:
>> 
>> format: Unnumbered
>> 
>> sapi: 000 c/r: 1 ea: 0
>> 
>> tei: 000 ea: 1
>> 
>> p/f: 1
>> 
>> cmd: DM - disconnected mode
>> 
>> [ 02 01 7f ]
>> 
>> We had also upgraded the bios of the server but that had no effect
>> 
>> Also we were suggested to upgrade the bios to latest version. Which was
> also done and made no effect on our issue. 
>> 
>> It seems we are receiving SABME but sending nothing in return. Their are
> no RX and TX counter increment.
>> 
>> Do let me know if you need more information.
>> 
>> Any idea what could we do to mitigate this?
>>

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