Hi, the config changes suggested from Michal (in both chan_dahdi.conf and system.conf), should also fix your continuity check problems - just ask the telco to repeat the test one you made them. in system.conf you need the same changes: #Sangoma A104 port 2 [slot:4 bus:4 span:2] <wanpipe2> span=2,2,0,ccs,hdb3,crc4 bchan=32-62 <<< changed echocanceller=mg2,32-62 <<< changed #Sangoma A104 port 3 [slot:4 bus:4 span:3] <wanpipe3> span=3,3,0,ccs,hdb3,crc4 bchan=63-93 <<< changed echocanceller=mg2,63-93 <<< changed #hardhdlc=78 #Sangoma A104 port 4 [slot:4 bus:4 span:4] <wanpipe4> span=4,4,0,ccs,hdb3,crc4 bchan=94-124 <<< changed echocanceller=mg2,94-124 <<< changed #hardhdlc=109 On 2014-02-12 02:35, Athiq Rahman wrote: > Thanks for your prompt response Michal. That seems to have removed the > warnings. > > Probably this is not possible yet. As I know, with libss7 you can > receive continuity check request, but not send it. > > Do you know if continuity checks can be done with chan_ss7 ? > > -- Athiq > > On 12/02/2014 00:19, Michal Ryb?rik wrote: > Hi, > > > On 02/12/2014 12:37 AM, Athiq Rahman wrote: > > I have asterisk 11.6 with libss7 1.0.2 2x A104 card. > > I have been given 4 E1 from my carrier with the following CIC > configuraiton > > CIRCUIT 0 : > VOICE CIC: 1-15, 17-31 > SIG=16 > > CIRCUIT 1: > VOICE CIC: 33-63 > > CIRCUIT 2: > VOICE CIC: 65-95 > > CIRCUIT 3: > VOICE CIC: 97-127 > > The carrier is saying that only the CIC 1-31 pass the continuity check. > They are asking me to run CIC continuity check on my side, which I do > not know how to perform. > Does anyone how to do the CIC continuity check from asterisk side? > > Probably this is not possible yet. As I know, with libss7 you can > receive continuity check request, but not send it. > > > doing a dahdi show channel for 125, 126 and 127 show that those > channels are part of span 5, even though in my systems.conf file below, > i have disabled span 5 -8. > > > It seems that your DAHDI channels are not configured properly. My DAHDI > is using channel numbers 1-31, 32-62, 63-93, 94-124 for first 4 spans. > You are configuring your span4 with channels up to 127, but 125-127 are > probably on span5. You have Red alarm on these channels, probably you > don't have anything connected in span5 (no link). Try to correct > channel numbers in /etc/dahdi/system.conf and also chan_dahdi.conf and > use intervals which are listed above (but exclude channel used for > signalling in span1). > > If your peer really use CIC numbering as he sent you, probably you will > do something like this in /etc/asterisk/chan_dahdi.conf > > channel=17-31 > cicbeginswith=33 > channel=32-62 <<< changed > cicbeginswith=65 > channel=63-93 <<< changed > cicbeginswith=97 > channel=94-124 <<< changed > > > M.R. > >