<div>Dear</div>
<div> mates,</div>
<div> </div>
<div>I need your support in the below mentioned problem that I experienced and still not resolved in ISUP connectivity with ZONG. Please advice if you have any </div>
<p>remedy or clue.<br> <br>I have successfully established SS7 links with the Telco and they are working fine. I have tested an outgoing call and an incoming call as well. The problem </p>
<p>arises when I tried to define extension in it. <br> <br>At first I just add one dialing code as 6789 and successfully received a call over it on default extension. When I add another dialing code and define </p>
<p>extension for it gave an error as <br> </p>
<p>Error Shown<br> <br>[Nov 19 16:15:07] DEBUG[26580]: l4isup.c:2466 process_circuit_message: Process circuit message IAM, CIC=6, state=0, reset_done=1<br> -- Recv IAM CIC=6 ANI=77142034884 DNI=6789 RNI= redirect=no/0 complete=1<br>
[Nov 19 16:15:07] DEBUG[26580]: l4isup.c:2644 process_iam: IAM CIC=6, owner=0x00000000<br>[Nov 19 16:15:07] DEBUG[26580]: l4isup.c:1530 check_iam_sam: Unable to match extension, context: ss7, dni: 6789, rni:<br>[Nov 19 16:15:07] DEBUG[26580]: l4isup.c:389 mtp_enqueue_isup_packet: Queue packet CIC=6, len=13, linkset='work1', link='l3', slinkset='work1', slink='l1'<br>
<br>ss7.conf File content<br> ----------------------------------------<br>[linkset-work1]<br>enabled => yes<br>enable_st => no<br>use_connect => yes<br>hunting_policy => odd_lru<br>context => ss7<br>language => en<br>
t35 => 15000,timeout<br>subservice => auto<br> <br>[link-l1]<br>linkset => work1<br>channels => 1-15,17-31<br>schannel => 16<br>firstcic => 1<br>enabled => yes<br>echocancel => no<br>echocan_train => 350<br>
echocan_taps => 128<br> <br>[<a href="http://host-work1.myplace.net">host-work1.myplace.net</a>]<br>enabled => yes<br>opc => 1234<br>dpc => work1:4567<br>links => l1:1<br> <br> <br>When I first tried to test my connectivity there was no definition of any extension in extensions.conf except <a href="mailto:s@default">s@default</a> below is my configuration file and </p>
<p>output on CLI for your reference. <br> </p>
<p>extentions.conf<br>------------------------------------------------<br>[general]<br>static=yes<br>writeprotect=no<br> <br>[from-sip]<br> <br>[ss7]<br> <br>[default]<br> <br>exten => h,1,Hangup<br> <br> <br>exten => s,1,AGI(extended_test.agi)<br>
<br>exten => s,n,NoOp,${CALLERID(all)}<br>exten => s,n,NoOp,${DNID}<br>exten => s,n,NoOp,${CHANNEL}<br> <br>exten => s,n,Answer<br>exten => s,n,Wait(1)<br>exten => s,n(begin),Set(TIMEOUT(digit)=3)<br>exten => s,n,Set(TIMEOUT(response)=10)<br>
exten => s,n,Background(mywork/sound_01)<br>exten => hang,1,Hangup<br> <br>[incoming]<br> <br>------------------------------------------------<br> <br>CLI Output<br>------------------------------------------------<br>
<br>RECIEVED CALLS WHEN DEFAULT EXTIONTIONS DEFINED<br>[Nov 19 16:57:04] DEBUG[26580]: l4isup.c:2466 process_circuit_message: Process circuit message IAM, CIC=7, state=0, reset_done=1<br> -- Recv IAM CIC=7 ANI=77142034884 DNI=6789 RNI= redirect=no/0 complete=1<br>
[Nov 19 16:57:04] DEBUG[26580]: l4isup.c:2644 process_iam: IAM CIC=7, owner=0x00000000<br>[Nov 19 16:57:04] DEBUG[26580]: l4isup.c:1522 check_iam_sam: Setting iam.dni.complete<br> -- Executing [s@default:1] AGI("**Unknown**", "extended_test.agi") in new stack</p>
<p> -- Executing [s@default:2] NoOp("**Unknown**", "77142034884") in new stack<br> -- Executing [s@default:3] NoOp("**Unknown**", "unknown") in new stack<br> -- Executing [s@default:4] NoOp("**Unknown**", "**Unknown**") in new stack</p>
<p> -- Executing [s@default:34] Answer("**Unknown**", "") in new stack<br>[Nov 19 16:57:04] DEBUG[26712]: l4isup.c:1973 ss7_answer: SS7 answer CIC=7, pvt->state=1.<br>[Nov 19 16:57:04] DEBUG[26712]: l4isup.c:389 mtp_enqueue_isup_packet: Queue packet CIC=7, len=10, linkset='work1', link='l3', slinkset='work1', slink='l1'<br>
-- Executing [s@default:35] Wait("**Unknown**", "1") in new stack<br>[Nov 19 16:57:04] DEBUG[26580]: mtp.c:1867 mtp_thread_main: Queue MSU, lsi=0, last_send_ix=0, linkset=work1, m->link=l1<br>[Nov 19 16:57:04] DEBUG[26580]: mtp.c:1575 mtp2_fill_zaptel_buf: Sending buffer to zaptel len=14, on link 'l1' bsn=102, fsn=124.<br>
-- Executing [s@default:36] Set("**Unknown**", "TIMEOUT(digit)=3") in new stack<br> -- Digit timeout set to 3<br> -- Executing [s@default:37] Set("**Unknown**", "TIMEOUT(response)=10") in new stack<br>
-- Response timeout set to 10<br> -- Executing [s@default:38] BackGround("**Unknown**", " mywork/sound_01") in new stack<br>[Nov 19 16:57:05] DEBUG[26712]: channel.c:1908 ast_settimeout: Scheduling timer at 160 sample intervals<br>
-- Playing ' mywork/sound_01' (language 'en')<br> <br> <br>When I removed the <a href="mailto:s@default">s@default</a> in extension.conf with only the context definition <br> <br>It generates the below output on CLI <br>
<br>extentions.conf<br>------------------------------------------------<br>[general]<br>static=yes<br>writeprotect=no<br> <br>[from-sip]<br> <br>[ss7]<br> <br>[default]<br> <br>[incoming]<br>------------------------------------------------<br>
<br>Output on CLI<br> <br>[Nov 19 16:15:07] DEBUG[26580]: l4isup.c:2466 process_circuit_message: Process circuit message IAM, CIC=6, state=0, reset_done=1<br> -- Recv IAM CIC=6 ANI=77142034884 DNI=6789 RNI= redirect=no/0 complete=1<br>
[Nov 19 16:15:07] DEBUG[26580]: l4isup.c:2644 process_iam: IAM CIC=6, owner=0x00000000<br>[Nov 19 16:15:07] DEBUG[26580]: l4isup.c:1530 check_iam_sam: Unable to match extension, context: ss7, dni: 6789, rni:<br>[Nov 19 16:15:07] DEBUG[26580]: l4isup.c:389 mtp_enqueue_isup_packet: Queue packet CIC=6, len=13, linkset='work1', link='l3', slinkset='work1', slink='l1'<br>
<br> <br>When I defined an extension for the dialing code 6789 in SS7 context. It gave the below output on CLI <br> <br>extentions.conf<br>------------------------------------------------<br> [general]<br>static=yes<br>writeprotect=no<br>
<br>[from-sip]<br> <br>[ss7]<br>exten => 6789,1,Goto(my-extension,s,1)<br> <br>[default]<br> <br>[incoming]<br> <br>------------------------------------------------<br> <br>Error Shown<br> <br>[Nov 19 16:52:28] DEBUG[26580]: l4isup.c:1522 check_iam_sam: Setting iam.dni.complete<br>
== Starting **Unknown** at default,s,1 failed so falling back to exten 's'<br> == Starting **Unknown** at default,s,1 still failed so falling back to context 'default'<br>[Nov 19 16:52:28] WARNING[26701]: pbx.c:2405 __ast_pbx_run: Channel '**Unknown**' sent into invalid extension 's' in context 'default', but no invalid </p>
<p>handler<br>[Nov 19 16:52:28] DEBUG[26701]: pbx.c:1621 pbx_substitute_variables_helper_full: Function result is '77142034884'<br>[Nov 19 16:52:28] DEBUG[26701]: pbx.c:1621 pbx_substitute_variables_helper_full: Function result is 's'<br>
[Nov 19 16:52:28] DEBUG[26701]: pbx.c:1621 pbx_substitute_variables_helper_full: Function result is 'default'<br>[Nov 19 16:52:28] DEBUG[26701]: pbx.c:1621 pbx_substitute_variables_helper_full: Function result is '**Unknown**'<br>
-- SS7 hangup '**Unknown**' CIC=7 Cause=0 (state=1)<br>[Nov 19 16:52:28] DEBUG[26701]: l4isup.c:1916 ss7_hangup: SS7 hangup '**Unknown**' CIC=7 (state=1), chan=0x083e9500<br>[Nov 19 16:52:28] DEBUG[26701]: l4isup.c:1947 ss7_hangup: SS7 hangup '**Unknown**' CIC=7 cause=0<br>
[Nov 19 16:52:28] DEBUG[26701]: l4isup.c:389 mtp_enqueue_isup_packet: Queue packet CIC=7, len=13, linkset='work1', link='l3', slinkset='work1', slink='l1'<br></p>