hi Goke, Peter & the list<br><br>okay here is the situation where i
am stuck now in connecting chan_ss7(on Digium TE411P) with a Siemens EWSD V12 switch, all
i need is to receive calls on my asterisk server & then to SIP
channels as in an ACD system.
<br>When ever we place a call from PSTN, the other end (EWSD) sends
the call to our server, our Asterisk server receives the IAM for that
call (u can see the log below, the IAM for a call on CIC=3) but simply
discards it as shown in the log, & upon the call termination from
the caller, the other end sends an REL message but again our server
after receving it, simply discards it. We even saw it from the traces
we had through a Siemens tracer i.e. our server is not sending back the
acknowledgements & etc. In short, our Asterisk server detects the
ativities upon an incomming call, but is unable to receive it, discards
every received message :( , the CLI log is as under:
<br><br>*****************************<br>Dec 16 01:10:16 ERROR[4904]: mtp.c:765 timeout_sltm_t1: No SLTA received within Q.707 timer T1, faulting link on link 'l1'.<br>Dec 16 01:10:16 WARNING[4904]: chan_ss7.c:3598 monitor_main: MTP is now DOWN on link 'l1'.
<br>Dec 16 01:10:16 NOTICE[4904]: mtp.c:471 mtp_changeover: MTP
changeover last_ack=3, last_sent=3, from schannel 16, no INSERVICE
schannel found<br>Dec 16 01:10:16 NOTICE[4904]: mtp.c:475
mtp_changeover: Failover not possible, no other signalling link and no
other host available.
<br>Dec 16 01:10:25 NOTICE[4904]: isup.c:489 decode_isup_phonenum:
National (significant) or unknown nature of address indicator (1),
assuming international.<br>Dec 16 01:10:25 WARNING[4904]:
chan_ss7.c:2291 process_circuit_message: Group reset still in progress
for CIC=3, typ=IAM message discarded.
<br>Dec 16 01:10:27 WARNING[4904]: mtp.c:760 timeout_sltm_t1: No SLTA received within Q.707 timer T1, trying again on link 'l1'.<br>Dec
16 01:10:35 WARNING[4904]: chan_ss7.c:2291 process_circuit_message:
Group reset still in progress for CIC=3, typ=REL message discarded.
<br>Dec 16 01:10:36 ERROR[4904]: mtp.c:765 timeout_sltm_t1: No SLTA received within Q.707 timer T1, faulting link on link 'l1'.<br>Dec 16 01:10:36 WARNING[4904]: chan_ss7.c:3598 monitor_main: MTP is now DOWN on link 'l1'.
<br>******************************<div id="mb_0">**<br>as you ppl can see the log
lines on Dec 16 01:10:25 and Dec 16 01:10:35, first an IAM comes then
the SLTA warning & then the REL but both the messages have been
discarded, in the IAM line it says that 'Group reset still in progress
for CIC=3', what actually does that mean? & what do i need to do
for it?
<br>moreover the other relvent info:<br><br>********************************<br>*CLI>ss7 link status:<br>linkset siuc, link l1, schannel 16, INSERVICE, rx: 0, tx: 3/3, sentseq/lastack: 2/2, total 3368272, 3368336<br>
********************************<br>********************************<br>*CLI> ss7 linestat<br>Linkset: siuc<br>CIC 1 Idle Reset pending BLOCKED Link down<br>CIC 2 Idle Reset pending BLOCKED Link down<br>CIC 3 Idle Reset pending BLOCKED Link down
<br>CIC 4 Idle Reset pending BLOCKED Link down<br>CIC 5 Idle Reset pending BLOCKED Link down<br>CIC 6 Idle Reset pending BLOCKED Link down<br>CIC 7 Idle Reset pending BLOCKED Link down<br>CIC 8 Idle Reset pending BLOCKED Link down
<br>CIC 9 Idle Reset pending BLOCKED Link down<br>CIC 10 Idle Reset pending BLOCKED Link down<br>CIC 11 Idle Reset pending BLOCKED Link down<br>CIC 12 Idle Reset pending BLOCKED Link down<br>CIC 13 Idle Reset pending BLOCKED Link down
<br>CIC 14 Idle Reset pending BLOCKED Link down<br>CIC 15 Idle Reset pending BLOCKED Link down <br>********************************<br>my conf files are as:<br>-----ss7.conf------<br>[linkset-siuc]<br>enabled => yes
<br>enable_st => yes<br>use_connect => no <br>hunting_policy => odd_lru<br>context => ss7 <br>subservice => auto<br><br>[link-l1]<br>enabled => yes<br>linkset => siuc<br>channels => 1-15,17-31<br>
schannel => 16
<br>firstcic => 1<br>echocancel => allways<br>echocan_train => 350<br>echocan_taps => 32<br><br>[host-ACDsvr.case]<br>enabled => yes<br>default_linkset => siuc<br>opc => 5462<br>dpc => siuc:5461<br>
<br>links => l1:1<br>-----------------------<br><br>---zaptel.conf----<br>span=1,1,0,ccs,hdb3,crc4<br>bchan=1-31<br>loadzone=uk<br>defaultzone=uk<br>-----------------------<br><br>---extensions.conf---<br>[general]<br>
static=yes<br>writeprotect=no<br>autofallthrough=no<br><br>[ss7]<br>exten => _. , 1 , Answer()<br>exten => _. , 2 , Ringing()<br>exten => _. , 3 , Wait(2)<br>exten => _. , 4 , Playback(your-temp-greeting)<br>
exten => _. , 5 , Queue(17)
<br>exten => _. , 6 , HangUp()<br>.<br>.<br>.<br>-----------------------------<br><br>the packages i m using:<br>LINUX FC-4 (kernal 2.6)<br>Asterisk-1.2.12.1<br>zaptel-1.2.10<br>chan_ss7-0.8.4<br><br>then i installed chan_ss7-
0.9, which besides the above also gave this:<br>********************************<br>in chan_ss7-0.9<br>Dec
16 01:49:44 WARNING[5601]: chan_ss7.c:1022 t18_timeout: T18 timeout (No
"circuit group blocking acknowledge" from peer) CIC=1.
<br>********************************<br><br>the chan_ss7 works
all fine upto MTP-3 (as it identifies the IAM & REL & CGU etc)
but after receiving IAM it discards it i.e. no ACM or ANM back to (i
even checked with use_connect=yes, but to no use) the other end. So in
your opinion, what am i supposed to do, should I go for RBT(Ringback
tone) patch or should i place the wait(2) prior Answer or yet it has
nothing to with extensions.conf or what?<br>plz help me connecting chan_ss7(on Digium
TE411P) with Seimens EWSD V12, things seem to be very close to working
but they r not workin infact & i m running outta time<br><br>regards</div>