[asterisk-ss7] chan_ss7 - initial alignment failed

[equis software]

Hi, I have this error

mtp.c:517 t2_timeout: MTP2 timer T2 timeout (failed to receive 'O', 'N', or
'E' after sending 'O'), initial alignment failed on link 'i1'.

My Confs are:
---------------- ss7.conf: --------------------
[linkset-a1]
enabled => yes
enable_st => no
use_connect => no
hunting_policy => seq_lth
context => ss7
language => br
subservice => 8

[link-i1]
linkset => a1
channels => 1-15,17-31
schannel => 16
firstcic => 1
enabled => yes
echocancel => allways

[host-a1]
enabled => yes
opc => 4
dpc => a1:13156
links => i1:1

---------------- zaptel.conf ----------------
span=1,1,0,ccs,hdb3,crc4
loadzone = us
bchan=1-15,17-31
dchan=16



------------ console ---------------------
*CLI> ss7 link status
linkset a1, link i1, schannel 16, sls 0, NOT_ALIGNED, rx: 0, tx: 4/4,
sentseq/lastack: 127/127, total   2253619,  29387712

*CLI> ss7 linestat
Linkset: a1
CIC   1 Idle Reset pending
CIC   2 Idle Reset pending
....................
................
CIC  31 Idle Reset pending
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