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37522 discussions

Problem with callid as htable key
by jenus＠cyberchaos.nl 16 Oct '18

16 Oct '18

Hello, I'm running kamailio 5.1.4 and running into a issue with htable. I use it to store some dialog data so i can use it in a http route. When i use the callid as a key it creates a issue for callid's starting with eq. Here some example code that i use to reproduce the issue: modparam("htable", "htable", "ht_test=>size=16;autoexpire=10") $var(htable-val) = $_s($dlg(h_entry)) + "::" + $_s($dlg(h_id)) + "::" + $Ts; xlog("L_WARN", "HT_TEST: Adding $var(htable-val) to ht_test with key eq1234"); $var(htid) = "eq1234"; $sht(ht_test=>$var(htid)) = $var(htable-val); $var(htable-val) = $null; if ($shtcn(ht_test=>$var(htid)) > 0) { xlog("L_WARN", "HT_TEST: Key eq1234 found!"); } else { xlog("L_WARN", "HT_TEST: Key eq1234 NOT found!"); } $var(htid) = $null; Results in : Oct 16 09:36:31 sip03 /usr/sbin/kamailio[22344]: WARNING: <script>: HT_TEST: Adding 531::926::1539675391 to ht_test with key eq1234 Oct 16 09:36:31 sip03 /usr/sbin/kamailio[22344]: WARNING: <script>: HT_TEST: Key eq1234 NOT found! When i prefix eq with a 1 it works fine: modparam("htable", "htable", "ht_test=>size=16;autoexpire=10") $var(htable-val) = $_s($dlg(h_entry)) + "::" + $_s($dlg(h_id)) + "::" + $Ts; xlog("L_WARN", "HT_TEST: Adding $var(htable-val) to ht_test with key eq1234"); $var(htid) = "1eq1234"; $sht(ht_test=>$var(htid)) = $var(htable-val); $var(htable-val) = $null; if ($shtcn(ht_test=>$var(htid)) > 0) { xlog("L_WARN", "HT_TEST: Key eq1234 found!"); } else { xlog("L_WARN", "HT_TEST: Key eq1234 NOT found!"); } $var(htid) = $null; Results in: Oct 16 09:37:25 sip03 /usr/sbin/kamailio[22555]: WARNING: <script>: HT_TEST: Adding 3050::1098::1539675445 to ht_test with key eq1234 Oct 16 09:37:25 sip03 /usr/sbin/kamailio[22555]: WARNING: <script>: HT_TEST: Key eq1234 found! Am i running into a bug? Or are there some restrictions on the key's i can use? I'm still going trough the logs to check if there are more callid's that have a issue with matching. Thanks, Jan Hazenberg

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Problem with Kamailio 4.2.0
by José Antonio Gutiérrez Delgado 16 Oct '18

16 Oct '18

Hi, I'm using Kamailio 4.2.0 and I'm developing a SIP-based application. Today I made a test connecting two devices directly to an S7 sharing the Internet, I usually use a VPN even if they are both connected to the same network because in the future they will be in different networks.Without the VPN calls were not received. This has never happened to me, I have repeated tests and in an S6 it has also happened to me. So I have checked my Kamailio server and I have detected that when executing: kamctl ul show, the received field did not appear: With VPN: Contact:: sip:pruebaT@47.60.42.40:10924;transport=udp Q= Expires:: 1992 Callid:: iwNoYb~QR- Cseq:: 21 User-agent:: Unknown (belle-sip/1.6.1) Received:: sip:47.60.42.40:10924 State:: CS_NEW Flags:: 0 Cflag:: 64 Socket:: udp:10.0.0.4:5060 Methods:: 4294967295 Ruid:: uloc-5a9d9097-9fa-431c Instance:: <urn:uuid:8b50dde3-d07f-4752-9a24-7b8ddf219a99> Reg-Id:: 0 Last-Keepalive:: 1539614732 Last-Modified:: 1539614732 Without VPN: Contact:: sip:pruebaT@37.10.156.189:51163;transport=udp Q= Expires:: 1996 Callid:: webjvHycBs Cseq:: 21 User-agent:: Unknown (belle-sip/1.6.1) State:: CS_NEW Flags:: 0 Cflag:: 0 Socket:: udp:10.0.0.4:5060 Methods:: 4294967295 Ruid:: uloc-5a9d9097-9fc-1feb Instance:: <urn:uuid:89306a81-e2d1-4b7a-8206-107e3cbc0688> Reg-Id:: 0 Last-Keepalive:: 1539614531 Last-Modified:: 1539614531 Would someone know why it happened? Thanks -- José Antonio Gutiérrez Delgado Responsable técnico Oficina: (+34) 923040031 <http://www.arsoft-company.com/> *Este mensaje se dirige exclusivamente a su destinatario/s y puede contener información privilegiada o confidencial. Si no es vd. el destinatario indicado, queda notificado de que la utilización, divulgación y/o copia sin autorización está prohibida en virtud de la legislación vigente. Si ha recibido este mensaje por error, le rogamos que nos lo comunique inmediatamente por esta misma vía y proceda a su destrucción.* *Antes de imprimir, piensa si es necesario. Cuidar el medioambiente es tarea de todos.*

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Hi guys,
by shailendra kumar 15 Oct '18

15 Oct '18

I am fresher and want to learn about Kamailio Soft switch, Anyone can provide me link or document from where i can learn. I will be thankful for such help, Thanks & Regards, Shailendra Kumar

2 1

Subscription from asterisk
by willy 15 Oct '18

15 Oct '18

Hello all. I'm trying to share states and presence from kamailio between asterisks. Is there a way to do this in kamailio? Thank you, willy d

2 1

SDP in fifth 200 OK is not the same as in first four
by Roman Romanchenko 15 Oct '18

15 Oct '18

Hi all, I have an issue with SDP from Kamailio side in the following scenario: simple call from A to B. When B answers a call and sends '200 OK' to A, A delays ACK for a while, so '200 OK' re-transmission happens. After the fourth try to re-send '200 OK' towards A, Kamailio changes SDP (specifically connection information 'c', IP address become address of A instead of proxy IP as it was in the previous attempts). At some point A sends ACK and call is established, but last received '200 OK' has invalid SDP and it prevents successful media establishment. I wonder if there any re-transmission counter or whatever what can affect this scenario and change SDP? Roman Romanchenko VoIP devel Sipwise GmbH

2 1

Dialog variables and persistence
by Alex Balashov 15 Oct '18

15 Oct '18

Hi, I forget, can $dlg_var(...) variables nowadays be reconstituted, along with dialog state in general, using database backing? What about profile membership? Last time I brushed with this topic was probably in 4.x days, and as I remember the general idea was that dialog state could be recovered on restart, but without dialog variables or profile counts. Is this accurate? Is it still true? Or has the amount of state serialised into database persistence increased since then? Thanks much! -- Alex -- Alex Balashov | Principal | Evariste Systems LLC Tel: +1-706-510-6800 / +1-800-250-5920 (toll-free) Web: http://www.evaristesys.com/, http://www.csrpswitch.com/

2 1

UPDATE relayed from wrong socket
by Sergiu Pojoga 15 Oct '18

15 Oct '18

Hi ppl, I have this problem with call transfer, may be someone can help. The phone to the far right is registered with the Registrar to the far left using two PATH headers (trespassing two proxy ports, 5070 then 5060). As you can see in the graph below, after receiving the UPDATE request, Kamailio relays it further from port 5060, I expect it to be from 5070 just like the dialog forming INVITE and the CANCEL afterwards. [image: image.png] The UPDATE has a to-tag, but unlike the original INVITE - it has no Route header!??? route[*WITHINDLG*] { if (!has_totag()) return; if (loose_route()) { route(DLGURI); if (is_method("BYE")) { ... } else if ( is_method("ACK") ) { route(NATMANAGE); } else if ( is_method("NOTIFY") ) { record_route(); } route(RELAY); exit; } if ( is_method("ACK") ) { ... } # handle UPDATE method for in-dialog requests if (is_method("*UPDATE*")) { route(DLGURI); record_route(); route(RELAY); } } Thanks in advance.

2 7

Distorted uri / Route header replaces the uri
by Abdulaziz Alghosh 15 Oct '18

15 Oct '18

Greetings, in order to upgrade kamailio server from 3.0.3 to 5.1.4 version, I am conducting test calls and it is not completelly successful. The main components I have are: 1- Media Gateway (Asterisk) : 192.168.226.133 2- Signalling Gateway (Kamailio 5.1.4) 192.168.226.132 3- Global Dispatcher (Kamailio 3.0.3 in front of the Signalling Gateway.) : 192.168.226.130 Both caller and callee have the dispatcher's IP as a proxy and their registration requests is passed to be registered at the Signalling Gateway (Kamailio 5.1.4) and saved on the MySQL server. The caller reaches the callee properly, who in its turn answeres the call and sends the OK msg to the caller who gets it. Unfortunately, when the caller sends the ACK for this INVITE to the callee, the ACK does not reach the callee because it is trapped by the dispatcher at the last stage because the uri was dropped and the Route header was used instead. This behaviour is abnormal since as I know the Route header should be converted into a Via header and the uri stays untouchable. The ACK was looped into the dispatcher itself .i.e. the dispatcher sent it to itself adding always the via header ""Via: SIP/2.0/UDP 192.168.226.130;branch=0"" endlessly. Once again, here is an example of the ACK before the dispatcher and how the dispatcher forwards the ACK afterwards. the supposed path is as following: caller --> GDP--> SGW --> MGW--> SGW --> GDP --> callee Although the GDP (before the calle after the SGW) received the uri well from SGW inside the ACK as it appears below: ACK sip:yyyyyyyyyyyy@192.168.226.130:5060;rinstance=1608f7c153f40093;transport=UDP SIP/2.0 Record-Route: <sip:192.168.226.132;lr=on;ftag=as3b989c5f> Via: SIP/2.0/UDP 192.168.226.132;branch=z9hG4bK136f.1e8349c235fff01ee1849f3456f8868a.0 Via: SIP/2.0/UDP 192.168.226.133:5060;rport=5060;branch=z9hG4bK34871fe9 Route: <sip:192.168.226.130;lr;ftag=as3b989c5f;did=d5b.87890dc6> Max-Forwards: 69 From: "xxxxxxxxxxxxxx" <sip:xxxxxxxxxxxx@domain.com>;tag=as3b989c5f To: <sip:yyyyyyyyyyyyy@192.168.226.132:5060>;tag=1af2c424 Contact: <sip:xxxxxxxxx@192.168.226.133:5060> Call-ID: 7ed2ab533d4c43086746d0e620bdff06(a)domain.com CSeq: 102 ACK User-Agent: MGW Content-Length: 0 The global dipstacher (GDP) has used the Route header (which has no R-URI yyyyyyyyy) instead of the uri: ACK sip:192.168.226.130;lr;ftag=as3b989c5f;did=d5b.87890dc6 SIP/2.0 Record-Route: <sip:192.168.226.132;lr=on;ftag=as3b989c5f> Via: SIP/2.0/UDP 192.168.226.130;branch=0 Via: SIP/2.0/UDP 192.168.226.132;rport=5060;branch=z9hG4bK136f.1e8349c235fff01ee1849f3456f8868a.0 Via: SIP/2.0/UDP 192.168.226.133:5060;rport=5060;branch=z9hG4bK34871fe9 Max-Forwards: 68 From: "xxxxxxxxxx" <sip:xxxxxxxxxxx@domain.com>;tag=as3b989c5f To: <sip:yyyyyyyyy@192.168.226.132:5060>;tag=1af2c424 Contact: <sip:xxxxxxx@192.168.226.132:5060> Call-ID: 7ed2ab533d4c43086746d0e620bdff06(a)domain.com CSeq: 102 ACK User-Agent: MGW Content-Length: 0 Thanks in advance for your contribution Abdulaziz

2 1

DIALPLAN Module: doubts about regular expression usage
by Stefano Bertuola 15 Oct '18

15 Oct '18

Hi Experts. I did some tests with DIALPLAN module and I have some doubts about how to define the regular expressions in the database. For example, using the start character '^' (beginning of the string), it looks not working: kamcmd> dialplan.dump 1 { DPID: 1 ENTRIES: { ENTRY: { PRIO: 1 MATCHOP: 2 MATCHEXP: ^(\+39)(.*)$ MATCHLEN: 0 SUBSTEXP: ^(\+39)(.*)$ REPLEXP: \2 ATTRS: 1 } } } kamcmd> dialplan.translate 1 "+39123456" error: 500 - No translation Removing it, it works... but not as desired: kamcmd> dialplan.dump 1 { DPID: 1 ENTRIES: { ENTRY: { PRIO: 1 MATCHOP: 1 MATCHEXP: (\+39)(.*)$ MATCHLEN: 0 SUBSTEXP: (\+39)(.*)$ REPLEXP: \2 ATTRS: 1 } } } kamcmd> dialplan.translate 1 "+39123456" { Output: 123456" Attributes: 1 } kamcmd> dialplan.translate 1 "xxxxxxx+39123456" { Output: 123456" Attributes: 1 } Can someone help me understand how the regular expression should be used in DIALPLAN, please? Br. Stefano

4 8

DIALPLAN Module: how to get/use the Attributes value
by Stefano Bertuola 14 Oct '18

14 Oct '18

Hi experts. I intended ATTRIBUTES is a value that is returned by dialplan's dp_translate as the result as shown by kamcmd command: kamcmd> dialplan.translate 2 s:+3912345 { Output: 3912345 Attributes: test } Is my understanding correct? I tried many ways, including using AVP and XAVP for the result, but no success: dp_translate("2", "$rU/$xavp(dp_result)"); pv_xavp_print(); DEBUG: dialplan [dialplan.c:222]: dp_get_ivalue(): dpid is 2 from constant argument DEBUG: dialplan [dialplan.c:243]: dp_get_svalue(): searching 7 DEBUG: dialplan [dialplan.c:331]: dp_translate_f(): input is +3912345 DEBUG: dialplan [dp_repl.c:592]: translate(): regex operator testing over [+3912345] DEBUG: dialplan [dp_repl.c:662]: translate(): found a matching rule 0x7f56aef690d8: pr 1, match_exp ^\+39..... DEBUG: dialplan [dp_repl.c:481]: rule_translate(): copying match <3912345> token size 2 DEBUG: dialplan [dialplan.c:340]: dp_translate_f(): input +3912345 with dpid 2 => output 3912345 INFO: <core> [xavp.c:494]: xavp_print_list_content(): +++++ start XAVP list: 0x7f56aeffaaa8 (level=0) INFO: <core> [xavp.c:498]: xavp_print_list_content(): *** XAVP name: dp_result INFO: <core> [xavp.c:499]: xavp_print_list_content(): XAVP id: 3539756229 INFO: <core> [xavp.c:500]: xavp_print_list_content(): XAVP value type: 2 INFO: <core> [xavp.c:509]: xavp_print_list_content(): XAVP value: 3912345 INFO: <core> [xavp.c:531]: xavp_print_list_content(): ----- end XAVP list: 0x7f56aeffaaa8 (level=0) If possible, how can I get both OUTPUT and ATTRIBUTES as result? Stefano

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