[asterisk-ss7] the link become unstable after 2 calls

[Goke Aruna]

Dear all,

I installed chan_ss7-0.9 zaptel-1.13 and asterisk-1.2.15.

however, I connected to a syncra switch and i have been having a lot of
errors, msu not received even ACM and ANM is not always received.. after
the call is REL no REL from syncra side. even if i released the calls
from chan_ss7 no RLC from syncra.

however, after two to three calls the signalling link become unstable
with the error below on my console. and this continue untill gra is
received and after two calls again instability of the link start again.

Mar  7 18:58:04 NOTICE[25811]: mtp.c:881 mtp2_process_lssu: Got status
indication 'OS' while INSERVICE.
Mar  7 18:58:04 WARNING[25811]: chan_ss7.c:636 monitor_main: MTP is now
DOWN on link 'l1'.
Mar  7 18:58:04 NOTICE[25811]: mtp.c:502 mtp_changeover: MTP changeover
last_ack=2, last_sent=2, from schannel 16, no INSERVICE schannel found
Mar  7 18:58:04 NOTICE[25811]: mtp.c:506 mtp_changeover: Failover not
possible, no other signalling link and no other host available.
Mar  7 18:58:06 WARNING[25811]: chan_ss7.c:629 monitor_main: MTP is now
UP on link 'l1'.
Mar  7 18:58:06 WARNING[25811]: chan_ss7.c:639 monitor_main: MTP is now
INSERVICE for linkset 'syncra'.
Mar  7 18:59:08 NOTICE[25811]: mtp.c:881 mtp2_process_lssu: Got status
indication 'OS' while INSERVICE.
Mar  7 18:59:08 WARNING[25811]: chan_ss7.c:636 monitor_main: MTP is now
DOWN on link 'l1'.
Mar  7 18:59:08 NOTICE[25811]: mtp.c:502 mtp_changeover: MTP changeover
last_ack=2, last_sent=2, from schannel 16, no INSERVICE schannel found
Mar  7 18:59:08 NOTICE[25811]: mtp.c:506 mtp_changeover: Failover not
possible, no other signalling link and no other host available.


i will be glad, if someone could help me.

Goke
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