[asterisk-ss7] dahdi + chan_ss7 + SIEMENS EWSD = mtp.c:989 timeout_sltm_t1: No SLTA received within Q.707 timer T1, faulting link on link 'i1'.

[equis software]

Hi, I´m trying to connect a Siemens EWSD with my Asterisk using chan_ss7
(Netfors) and dahdi and in my cli console I have this error messages...

[Jun 15 09:44:50] ERROR[18482]: mtp.c:989 timeout_sltm_t1: No SLTA received
within Q.707 timer T1, faulting link on link 'i1'.
[Jun 15 09:44:50] WARNING[18482]: chan_ss7.c:126 process_event: MTP is now
DOWN on link 'i1'.
[Jun 15 09:44:50] NOTICE[18482]: mtp.c:635 mtp_changeover: MTP changeover
last_ack=39, last_sent=39, from schannel 16, no INSERVICE schannel found
[Jun 15 09:44:50] NOTICE[18482]: mtp.c:639 mtp_changeover: Failover not
possible, no other signalling link and no other host available.
[Jun 15 09:44:51] NOTICE[18482]: mtp.c:1225 mtp2_good_frame: Sending TRA to
peer on link 'i1'....
[Jun 15 09:44:51] WARNING[18482]: mtp.c:1443 process_msu: Got SLTM with
unexpected sls=1, OPC=8777 DPC=4 on 'i1/16' sls=0, state=5.

My conf are:

# dahdi_scan
[1]
active=yes
alarms=OK
description=Digium Wildcard E100P E1/PRA Card 0
name=WCT1/0
manufacturer=Digium
devicetype=Digium Wildcard E100P E1/PRA
location=PCI Bus 01 Slot 02
basechan=1
totchans=31
irq=22
type=digital-E1
syncsrc=1
lbo=0 db (CSU)/0-133 feet (DSX-1)
coding_opts=HDB3
framing_opts=CCS,CRC4
coding=HDB3
framing=CCS


ss7.conf
[linkset-siuc]
enabled => yes
enable_st => no
use_connect => no
hunting_policy => seq_lth
context => TRONCAL-SS7-79
language => br
subservice => 8

[link-i1]
linkset => siuc
channels => 1-15,17-31
schannel => 16
firstcic => 1
enabled => yes
echocancel => allways

[host-a1]
enabled => yes
opc => 4
dpc => siuc:8777
links => i1:1


Other info
*CLI> ss7 linestat
Linkset: siuc
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  15 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
CIC  31 Idle Reset pending  BLOCKED Local Hardware

*CLI> ss7 link status
linkset siuc, link i1/16 INSERVICE, sls 0, total: 10186400, 10186432
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