[asterisk-ss7] No SLTA received within Q.707 timer T1, trying again on link 'l1'.

liuxin nyliuxin518 at gmail.com
Thu Jul 8 07:13:59 CDT 2010


Hi all experts,


Now, I am using asterisk + zaptel + ss7 on my centos system. But  after
start asterisk, i always got the error on CLI console.
--------------------------------------------------------------------------------------------------------------
*CLI> [Jul 10 03:59:40] WARNING[6445]: mtp.c:953 timeout_sltm_t1:* No SLTA
received within Q.707 timer T1, trying again on link 'l1'.*

[Jul 10 03:59:49] ERROR[6445]: mtp.c:958 timeout_sltm_t1: *No SLTA received
within Q.707 timer T1, faulting link on link 'l1'.*

[Jul 10 03:59:49] WARNING[6445]: chan_ss7.c:622 process_event:* MTP is now
DOWN on link 'l1'.*

[Jul 10 03:59:49] NOTICE[6445]: mtp.c:606 mtp_changeover: MTP changeover
last_ack=4, last_sent=4, from schannel 16, no INSERVICE schannel found

[Jul 10 03:59:49] NOTICE[6445]: mtp.c:610 mtp_changeover: Failover not
possible, no other signalling link and no other host available.

[Jul 10 03:59:52] NOTICE[6445]: mtp.c:1176 mtp2_good_frame: Sending TRA to
peer on link 'l1'....

[Jul 10 04:00:01] WARNING[6445]: mtp.c:953 timeout_sltm_t1: No SLTA received
within Q.707 timer T1, trying again on link 'l1'.

[Jul 10 04:00:10] ERROR[6445]: mtp.c:958 timeout_sltm_t1: No SLTA received
within Q.707 timer T1, faulting link on link 'l1'.

[Jul 10 04:00:10] WARNING[6445]: chan_ss7.c:622 process_event: MTP is now
DOWN on link 'l1'.

[Jul 10 04:00:10] NOTICE[6445]: mtp.c:606 mtp_changeover: MTP changeover
last_ack=8, last_sent=8, from schannel 16, no INSERVICE schannel found

[Jul 10 04:00:10] NOTICE[6445]: mtp.c:610 mtp_changeover: Failover not
possible, no other signalling link and no other host available.

[Jul 10 04:00:14] NOTICE[6445]: mtp.c:1176 mtp2_good_frame: Sending TRA to
peer on link 'l1'....

[Jul 10 04:00:14] NOTICE[6445]: mtp.c:1053 mtp2_process_lssu: Got status
indication 'OS' while INSERVICE on link 'l1'.

[Jul 10 04:00:14] WARNING[6445]: chan_ss7.c:622 process_event: MTP is now
DOWN on link 'l1'.

--------------------------------------------------------------------------------------------------------------
my config files:

software & hardware  env
--------------------------------------------------------------------------------------------------------------
asterisk-1.4.20
zaptel-1.4.11
chan_ss7-1.1
centos 5.5
Openvox D210P
--------------------------------------------------------------------------------------------------------------

zaptel.conf
--------------------------------------------------------------------------------------------------------------
# Span 1: TE2/0/1 "T2XXP (PCI) Card 0 Span 1" (MASTER)
span=1,1,0,ccs,hdb3
# termtype: te
bchan=1-31
# Span 2: TE2/0/2 "T2XXP (PCI) Card 0 Span 2"
span=2,2,0,ccs,hdb3
# termtype: te
bchan=32-62
# Global data
loadzone        = cn
defaultzone     = cn
--------------------------------------------------------------------------------------------------------------

ss7.conf
--------------------------------------------------------------------------------------------------------------
[linkset-ls1]
enabled => yes
enable_st => no
use_connect => yes
hunting_policy => even_mru
context => ss7_call
language => cn
subservice => auto
variant => CHINA
[link-l1]
linkset => ls1
channels => 1-15,17-31
schannel => 16
firstcic => 0
enabled => yes
echocancel => no
echocan_train => 350
echocan_taps => 128
;[link-l2]
;linkset =>ls1
;channels => 1-31
;schannel =>
;firstcic => 33
;enabled => yes

[host-v2-sip]
enabled => yes
opc => 2414205
dpc => ls1:2414230
links => l1:1
--------------------------------------------------------------------------------------------------------------

--------------------------------------------------------------------------------------------------------------
*CLI> ss7 link status
linkset ls1, link l1, schannel 16, sls 0, INSERVICE, rx: 3, tx: 1/3,
sentseq/lastack: 3/3, total    102144,    102240
--------------------------------------------------------------------------------------------------------------

--------------------------------------------------------------------------------------------------------------
*CLI> ss7 linestat
Linkset: ls1
CIC   0 Idle Reset pending
CIC   1 Idle Reset pending  BLOCKED Local Hardware
CIC   2 Idle Reset pending  BLOCKED Local Hardware
CIC   3 Idle Reset pending  BLOCKED Local Hardware
CIC   4 Idle Reset pending  BLOCKED Local Hardware
CIC   5 Idle Reset pending  BLOCKED Local Hardware
CIC   6 Idle Reset pending  BLOCKED Local Hardware
CIC   7 Idle Reset pending  BLOCKED Local Hardware
CIC   8 Idle Reset pending  BLOCKED Local Hardware
CIC   9 Idle Reset pending  BLOCKED Local Hardware
CIC  10 Idle Reset pending  BLOCKED Local Hardware
CIC  11 Idle Reset pending  BLOCKED Local Hardware
CIC  12 Idle Reset pending  BLOCKED Local Hardware
CIC  13 Idle Reset pending  BLOCKED Local Hardware
CIC  14 Idle Reset pending  BLOCKED Local Hardware
CIC  16 Idle Reset pending  BLOCKED Local Hardware
CIC  17 Idle Reset pending  BLOCKED Local Hardware
CIC  18 Idle Reset pending  BLOCKED Local Hardware
CIC  19 Idle Reset pending  BLOCKED Local Hardware
CIC  20 Idle Reset pending  BLOCKED Local Hardware
CIC  21 Idle Reset pending  BLOCKED Local Hardware
CIC  22 Idle Reset pending  BLOCKED Local Hardware
CIC  23 Idle Reset pending  BLOCKED Local Hardware
CIC  24 Idle Reset pending  BLOCKED Local Hardware
CIC  25 Idle Reset pending  BLOCKED Local Hardware
CIC  26 Idle Reset pending  BLOCKED Local Hardware
CIC  27 Idle Reset pending  BLOCKED Local Hardware
CIC  28 Idle Reset pending  BLOCKED Local Hardware
CIC  29 Idle Reset pending  BLOCKED Local Hardware
CIC  30 Idle Reset pending  BLOCKED Local Hardware
--------------------------------------------------------------------------------------------------------------
I am looking your help !

Thanks your comments

       liuxin
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