sr-dev August 2014

sr-dev@lists.kamailio.org

25 participants
196 discussions

git:master: tmx: documentation for t_precheck_trans()
by Daniel-Constantin Mierla 19 Aug '14

19 Aug '14

Module: sip-router Branch: master Commit: 392becb3e592f06f4ff843b303f1ddc765fa1a9f URL: http://git.sip-router.org/cgi-bin/gitweb.cgi/sip-router/?a=commit;h=392becb… Author: Daniel-Constantin Mierla <miconda(a)gmail.com> Committer: Daniel-Constantin Mierla <miconda(a)gmail.com> Date: Mon Aug 18 22:05:30 2014 +0200 tmx: documentation for t_precheck_trans() --- modules/tmx/README | 28 +++++++++++++++++++++++++++- modules/tmx/doc/tmx_admin.xml | 35 +++++++++++++++++++++++++++++++++-- 2 files changed, 60 insertions(+), 3 deletions(-) diff --git a/modules/tmx/README b/modules/tmx/README index 73eba24..80e6a45 100644 --- a/modules/tmx/README +++ b/modules/tmx/README @@ -47,6 +47,7 @@ Juha Heinanen 3.8. t_suspend() 3.9. t_continue(tindex, tlabel, rtname) 3.10. t_reuse_branch() + 3.11. t_precheck_trans() 4. Exported pseudo-variables 5. MI Commands @@ -83,6 +84,7 @@ Juha Heinanen 1.8. t_suspend usage 1.9. t_continue usage 1.10. t_reuse_branch usage + 1.11. t_precheck_trans usage Chapter 1. Admin Guide @@ -106,6 +108,7 @@ Chapter 1. Admin Guide 3.8. t_suspend() 3.9. t_continue(tindex, tlabel, rtname) 3.10. t_reuse_branch() + 3.11. t_precheck_trans() 4. Exported pseudo-variables 5. MI Commands @@ -135,7 +138,7 @@ Chapter 1. Admin Guide This module collects extensions from Kamailio TM module. Kamailio TM (Transaction Management) module documentation is available - at: http://www.kamailio.org/docs/modules/1.5.x/tm.html + at: http://www.kamailio.org/docs/modules/stable/tm.html 2. Dependencies @@ -165,6 +168,7 @@ Chapter 1. Admin Guide 3.8. t_suspend() 3.9. t_continue(tindex, tlabel, rtname) 3.10. t_reuse_branch() + 3.11. t_precheck_trans() 3.1. t_cancel_branches(which) @@ -350,6 +354,28 @@ event_route [tm:branch-failure:contact] { } ... +3.11. t_precheck_trans() + + Check if current processed message is handled by other process. This + function is useful to catch retransmissions before transaction is + created. The function returns true if the request is handled by another + process. + + Note that ACK and CANCEL requests are not tracked by this function, the + return code being false for them. + + This function can be used from REQUEST_ROUTE . + + Example 1.11. t_precheck_trans usage +... + # handle retransmissions + if(t_precheck_trans()) { + t_check_trans(); + exit; + } + t_check_trans(); +... + 4. Exported pseudo-variables * $T_branch_idx diff --git a/modules/tmx/doc/tmx_admin.xml b/modules/tmx/doc/tmx_admin.xml index 643281b..029c943 100644 --- a/modules/tmx/doc/tmx_admin.xml +++ b/modules/tmx/doc/tmx_admin.xml @@ -20,8 +20,8 @@ </para> <para> &kamailio; TM (Transaction Management) module documentation is available at: - <ulink url="http://www.kamailio.org/docs/modules/1.5.x/tm.html"> - http://www.kamailio.org/docs/modules/1.5.x/tm.html</ulink> + <ulink url="http://www.kamailio.org/docs/modules/stable/tm.html"> + http://www.kamailio.org/docs/modules/stable/tm.html</ulink> </para> </section> @@ -370,6 +370,37 @@ event_route [tm:branch-failure:contact] { </programlisting> </example> </section> + <section> + <title> + <function moreinfo="none">t_precheck_trans()</function> + </title> + <para> + Check if current processed message is handled by other process. + This function is useful to catch retransmissions before transaction + is created. The function returns true if the request is handled by + another process. + </para> + <para> + Note that ACK and CANCEL requests are not tracked by this function, + the return code being false for them. + </para> + <para> + This function can be used from REQUEST_ROUTE . + </para> + <example> + <title><function>t_precheck_trans</function> usage</title> + <programlisting format="linespecific"> +... + # handle retransmissions + if(t_precheck_trans()) { + t_check_trans(); + exit; + } + t_check_trans(); +... +</programlisting> + </example> + </section> </section>

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git:master: tm: more details about processing doen by t_check_trans()
by Daniel-Constantin Mierla 19 Aug '14

19 Aug '14

Module: sip-router Branch: master Commit: 8863703388f1be349675e4b72329eb702ad33ecd URL: http://git.sip-router.org/cgi-bin/gitweb.cgi/sip-router/?a=commit;h=8863703… Author: Daniel-Constantin Mierla <miconda(a)gmail.com> Committer: Daniel-Constantin Mierla <miconda(a)gmail.com> Date: Tue Aug 19 11:32:00 2014 +0200 tm: more details about processing doen by t_check_trans() - note that last reply is resent for retransmissions matching a transaction --- modules/tm/README | 8 +++++--- modules/tm/doc/functions.xml | 8 +++++--- 2 files changed, 10 insertions(+), 6 deletions(-) diff --git a/modules/tm/README b/modules/tm/README index 5ca25af..7952d7f 100644 --- a/modules/tm/README +++ b/modules/tm/README @@ -2479,9 +2479,11 @@ Note not needed for a statefull proxy and it requires additional memory, tm will not keep this information unless needed by some other module or callbacks). - * For other requests (non ACKs and non CANCELs), it will terminate - the script for retransmissions and return false for new requests - (for which no transaction exists yet). + * For other requests (non ACKs and non CANCELs), in case of a + retransmission matching a transaction, it resends the last reply + for that transaction and terminates the config execution. + Otherwise, it returns false (in case of new requests for which no + transaction exists yet). Note diff --git a/modules/tm/doc/functions.xml b/modules/tm/doc/functions.xml index 84751cc..af7d11d 100644 --- a/modules/tm/doc/functions.xml +++ b/modules/tm/doc/functions.xml @@ -1381,9 +1381,11 @@ if (t_check_status("(487)|(408)")) { </note> </listitem> <listitem> - <para>For other requests (non ACKs and non CANCELs), it will - terminate the script for retransmissions and return false for - new requests (for which no transaction exists yet).</para> + <para>For other requests (non ACKs and non CANCELs), in case of + a retransmission matching a transaction, it resends the last + reply for that transaction and terminates the config execution. + Otherwise, it returns false (in case of new requests for which + no transaction exists yet).</para> </listitem> </itemizedlist> </para>

1 0

407 response form provider as failure route
by Yuriy Gorlichenko 18 Aug '14

18 Aug '14

Hi, I want to realise scheme: Asterisk->Kamailo->provider I register several provider accounts at Kamailio using UAC module. When Client Generates call form Asterisk through Kamailio to provider, provider sends back 407 response. This reponse must be handled by Kamailio through failure_route using uac_auth(). I try to catch this response at onreply_route by status and route this response to failure route (t_on_failure("MY_FAILURE_ROUTE"))but Kamailio ignores t_on_failure and forward this packet to asterisk (As I think because asterisk generator of session) So My question is: How to handle this response at kamailio and not forward to asterisk? This is invite that forwards to provider: INVITE sip:11234567890@my.provider.com:5060 SIP/2.0 Record-Route: <sip:my.kamailio.com:5068;nat=yes;ftag=as57a2d34c;lr=on> Via: SIP/2.0/UDP my.kamailio.com:5068 ;branch=z9hG4bK8544.480e25d0e6a328f5f455233d808cda80.0 Via: SIP/2.0/UDP 10.0.1.6:50600;branch=z9hG4bK778521b0;rport=50600 Max-Forwards: 70 From: "John" <sip:my_provider_acc@my.provider.com:50600>;tag=as57a2d34c To: <sip:11234567890@my.provider.com:5068> Contact:<my_provider_acc@my.kamailio.com:5068> Call-ID: 3d8d6c357d69cdd51633b1c125729f44@10.0.1.6:50600 CSeq: 102 INVITE User-Agent: Asterisk PBX 12.4.0 Date: Sat, 16 Aug 2014 13:18:52 GMT Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY, INFO, PUBLISH, MESSAGE Supported: replaces, timer Content-Type: application/sdp Content-Length: 540 v=0 o=root 1941643043 1941643043 IN my.kamailio.com s=Asterisk PBX 12.4.0 c=IN IP4 my.kamailio.com t=0 0 a=ice-lite m=audio 30108 RTP/AVP 0 3 8 101 a=rtpmap:0 PCMU/8000 a=rtpmap:3 GSM/8000 a=rtpmap:8 PCMA/8000 a=rtpmap:101 telephone-event/8000 a=fmtp:101 0-16 a=ptime:20 a=maxptime:150 a=sendrecv a=rtcp:30109 a=ice-ufrag:jOv9GFqq a=ice-pwd:wuXGbJ3ZI7MfwM6kwto78s8reEyU a=candidate:lzqT8la5i9wkzQzB 1 UDP 2130706431 my.kamailio.com 30108 typ host a=candidate:lzqT8la5i9wkzQzB 2 UDP 2130706430 my.kamailio.com 30109 typ host

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git:master: modules/ims_qos: ignore reply retransmissions if Rx session being processed
by Richard Good 18 Aug '14

18 Aug '14

Module: sip-router Branch: master Commit: bd12eaf0f26cfca55eda063263109d434be31c60 URL: http://git.sip-router.org/cgi-bin/gitweb.cgi/sip-router/?a=commit;h=bd12eaf… Author: Richard Good <richard.good(a)smilecoms.com> Committer: Richard Good <richard.good(a)smilecoms.com> Date: Mon Aug 18 22:21:13 2014 +0200 modules/ims_qos: ignore reply retransmissions if Rx session being processed On receipt of Rx_AAR command check if session exists and it is not in state open If so then assume this is a retransmit and ignore --- modules/ims_qos/mod.c | 47 +++++++++++++++++++++++++++-------------------- 1 files changed, 27 insertions(+), 20 deletions(-) diff --git a/modules/ims_qos/mod.c b/modules/ims_qos/mod.c index 7605034..4f82adc 100644 --- a/modules/ims_qos/mod.c +++ b/modules/ims_qos/mod.c @@ -378,6 +378,7 @@ void callback_pcscf_contact_cb(struct pcontact *c, int type, void *param) { static int w_rx_aar(struct sip_msg *msg, char *route, char* str1, char* bar) { int ret = CSCF_RETURN_ERROR; + int result = CSCF_RETURN_ERROR; struct cell *t; AAASession* auth_session; @@ -397,19 +398,19 @@ static int w_rx_aar(struct sip_msg *msg, char *route, char* str1, char* bar) { char* direction = str1; if (fixup_get_svalue(msg, (gparam_t*) route, &route_name) != 0) { LM_ERR("no async route block for assign_server_unreg\n"); - return -1; + return result; } LM_DBG("Looking for route block [%.*s]\n", route_name.len, route_name.s); int ri = route_get(&main_rt, route_name.s); if (ri < 0) { LM_ERR("unable to find route block [%.*s]\n", route_name.len, route_name.s); - return -1; + return result; } cfg_action = main_rt.rlist[ri]; if (cfg_action == NULL) { LM_ERR("empty action lists in route block [%.*s]\n", route_name.len, route_name.s); - return -1; + return result; } LM_DBG("Rx AAR called\n"); @@ -419,7 +420,7 @@ static int w_rx_aar(struct sip_msg *msg, char *route, char* str1, char* bar) { //We don't ever do AAR on request for calling scenario... if (msg->first_line.type != SIP_REPLY) { LM_DBG("Can't do AAR for call session in request\n"); - return CSCF_RETURN_ERROR; + return result; } //is it appropriate to send AAR at this stage? @@ -427,7 +428,7 @@ static int w_rx_aar(struct sip_msg *msg, char *route, char* str1, char* bar) { if (t == NULL || t == T_UNDEFINED) { LM_WARN("Cannot get transaction for AAR based on SIP Request\n"); //goto aarna; - return CSCF_RETURN_ERROR; + return result; } //we dont apply QoS if its not a reply to an INVITE! or UPDATE or PRACK! @@ -438,39 +439,39 @@ static int w_rx_aar(struct sip_msg *msg, char *route, char* str1, char* bar) { || cscf_get_content_length(t->uas.request) == 0) { LM_DBG("No SDP offer answer -> therefore we can not do Rx AAR"); //goto aarna; //AAR na if we dont have offer/answer pair - return CSCF_RETURN_ERROR; + return result; } } else { LM_DBG("Message is not response to INVITE, PRACK or UPDATE -> therefore we do not Rx AAR"); - return CSCF_RETURN_ERROR; + return result; } /* get callid, from and to tags to be able to identify dialog */ callid = cscf_get_call_id(msg, 0); if (callid.len <= 0 || !callid.s) { LM_ERR("unable to get callid\n"); - return CSCF_RETURN_ERROR; + return result; } if (!cscf_get_from_tag(msg, &ftag)) { LM_ERR("Unable to get ftag\n"); - return CSCF_RETURN_ERROR; + return result; } if (!cscf_get_to_tag(msg, &ttag)) { LM_ERR("Unable to get ttag\n"); - return CSCF_RETURN_ERROR; + return result; } //check to see that this is not a result of a retransmission in reply route only if (msg->cseq == NULL && ((parse_headers(msg, HDR_CSEQ_F, 0) == -1) || (msg->cseq == NULL))) { LM_ERR("No Cseq header found - aborting\n"); - return CSCF_RETURN_ERROR; + return result; } saved_t_data = (saved_transaction_t*) shm_malloc(sizeof (saved_transaction_t)); if (!saved_t_data) { LM_ERR("Unable to allocate memory for transaction data, trying to send AAR\n"); - return CSCF_RETURN_ERROR; + return result; } memset(saved_t_data, 0, sizeof (saved_transaction_t)); saved_t_data->act = cfg_action; @@ -480,7 +481,7 @@ static int w_rx_aar(struct sip_msg *msg, char *route, char* str1, char* bar) { if (!saved_t_data->callid.s) { LM_ERR("no more memory trying to save transaction state : callid\n"); shm_free(saved_t_data); - return CSCF_RETURN_ERROR; + return result; } memset(saved_t_data->callid.s, 0, callid.len + 1); memcpy(saved_t_data->callid.s, callid.s, callid.len); @@ -491,7 +492,7 @@ static int w_rx_aar(struct sip_msg *msg, char *route, char* str1, char* bar) { if (!saved_t_data->ttag.s) { LM_ERR("no more memory trying to save transaction state : ttag\n"); shm_free(saved_t_data); - return CSCF_RETURN_ERROR; + return result; } memset(saved_t_data->ttag.s, 0, ttag.len + 1); memcpy(saved_t_data->ttag.s, ttag.s, ttag.len); @@ -502,7 +503,7 @@ static int w_rx_aar(struct sip_msg *msg, char *route, char* str1, char* bar) { if (!saved_t_data->ftag.s) { LM_ERR("no more memory trying to save transaction state : ftag\n"); shm_free(saved_t_data); - return CSCF_RETURN_ERROR; + return result; } memset(saved_t_data->ftag.s, 0, ftag.len + 1); memcpy(saved_t_data->ftag.s, ftag.s, ftag.len); @@ -512,7 +513,7 @@ static int w_rx_aar(struct sip_msg *msg, char *route, char* str1, char* bar) { int branch; if (tmb.t_check( msg , &branch )==-1){ LOG(L_ERR, "ERROR: t_suspend: failed find UAC branch\n"); - return CSCF_RETURN_ERROR; + return result; } //Check that we dont already have an auth session for this specific dialog @@ -624,13 +625,18 @@ static int w_rx_aar(struct sip_msg *msg, char *route, char* str1, char* bar) { } else { LM_DBG("Update AAR session for this dialog in mode %s\n", direction); auth_session = cdpb.AAAGetAuthSession(*rx_session_id); + if(auth_session->u.auth.state != AUTH_ST_OPEN) + { + LM_DBG("This session is not state open, packet will be dropped"); + result = CSCF_RETURN_FALSE; //here we return FALSE this just drops the message in the config file + goto error; + } } LM_DBG("Suspending SIP TM transaction\n"); if (tmb.t_suspend(msg, &saved_t_data->tindex, &saved_t_data->tlabel) < 0) { LM_ERR("failed to suspend the TM processing\n"); - free_saved_transaction_global_data(saved_t_data); - return CSCF_RETURN_ERROR; + goto error; } LM_DBG("Sending Rx AAR"); @@ -644,7 +650,8 @@ static int w_rx_aar(struct sip_msg *msg, char *route, char* str1, char* bar) { } else { LM_DBG("Successful async send of AAR\n"); - return CSCF_RETURN_BREAK; //on success we break - because rest of cfg file will be executed by async process + result = CSCF_RETURN_BREAK; + return result; //on success we break - because rest of cfg file will be executed by async process } error: @@ -659,7 +666,7 @@ error: must_free_asserted_identity = 1; } - return CSCF_RETURN_ERROR; + return result; } /* Wrapper to send AAR from config file - only used for registration */

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git:master: tmx: documented precheck_trans parameter
by Daniel-Constantin Mierla 18 Aug '14

18 Aug '14

Module: sip-router Branch: master Commit: 571b1e66c1bfd557b3be8aa99cdf78be83caf97f URL: http://git.sip-router.org/cgi-bin/gitweb.cgi/sip-router/?a=commit;h=571b1e6… Author: Daniel-Constantin Mierla <miconda(a)gmail.com> Committer: Daniel-Constantin Mierla <miconda(a)gmail.com> Date: Mon Aug 18 22:15:42 2014 +0200 tmx: documented precheck_trans parameter --- modules/tmx/README | 330 ++++++++++++++++++++++------------------- modules/tmx/doc/tmx_admin.xml | 30 ++++- 2 files changed, 205 insertions(+), 155 deletions(-) Diff: http://git.sip-router.org/cgi-bin/gitweb.cgi/sip-router/?a=commitdiff;h=571…

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git:master: tmx: precheck_trans - new parameter to enable/ disable pre-transaction check
by Daniel-Constantin Mierla 18 Aug '14

18 Aug '14

Module: sip-router Branch: master Commit: 2ceae3188beb73da7d5975e7abf232226dd12063 URL: http://git.sip-router.org/cgi-bin/gitweb.cgi/sip-router/?a=commit;h=2ceae31… Author: Daniel-Constantin Mierla <miconda(a)gmail.com> Committer: Daniel-Constantin Mierla <miconda(a)gmail.com> Date: Mon Aug 18 22:07:58 2014 +0200 tmx: precheck_trans - new parameter to enable/disable pre-transaction check - enable/disable usage of t_precheck_trans() - don't init internal structures --- modules/tmx/tmx_mod.c | 6 +++--- 1 files changed, 3 insertions(+), 3 deletions(-) diff --git a/modules/tmx/tmx_mod.c b/modules/tmx/tmx_mod.c index b645b0d..3af01f5 100644 --- a/modules/tmx/tmx_mod.c +++ b/modules/tmx/tmx_mod.c @@ -77,7 +77,7 @@ static int tmx_cfg_callback(sip_msg_t *msg, unsigned int flags, void *cbp); static int bind_tmx(tmx_api_t* api); -static int _tmx_pretran_check = 1; +static int _tmx_precheck_trans = 1; /* statistic variables */ stat_var *tm_rcv_rpls; @@ -197,7 +197,7 @@ static cmd_export_t cmds[]={ }; static param_export_t params[]={ - {"pretran_check", PARAM_INT, &_tmx_pretran_check }, + {"precheck_trans", PARAM_INT, &_tmx_precheck_trans}, {0,0,0} }; @@ -263,7 +263,7 @@ static int child_init(int rank) { LM_DBG("rank is (%d)\n", rank); if (rank==PROC_INIT) { - if(_tmx_pretran_check!=0) + if(_tmx_precheck_trans!=0) return tmx_init_pretran_table(); } return 0;

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git:master: kamailio.cfg: use t_precheck_trans() to catch retransmissions faster
by Daniel-Constantin Mierla 18 Aug '14

18 Aug '14

Module: sip-router Branch: master Commit: dd30e06fabe554746b1f4565e16b024ee1795fbe URL: http://git.sip-router.org/cgi-bin/gitweb.cgi/sip-router/?a=commit;h=dd30e06… Author: Daniel-Constantin Mierla <miconda(a)gmail.com> Committer: Daniel-Constantin Mierla <miconda(a)gmail.com> Date: Mon Aug 18 21:54:13 2014 +0200 kamailio.cfg: use t_precheck_trans() to catch retransmissions faster --- etc/kamailio.cfg | 5 +++++ 1 files changed, 5 insertions(+), 0 deletions(-) diff --git a/etc/kamailio.cfg b/etc/kamailio.cfg index 13ceb7a..0070520 100644 --- a/etc/kamailio.cfg +++ b/etc/kamailio.cfg @@ -474,6 +474,11 @@ request_route { ### only initial requests (no To tag) + # handle retransmissions + if(t_precheck_trans()) { + t_check_trans(); + exit; + } t_check_trans(); # authentication

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git:master: tmx: t_precheck_tran() - light filtering of retransmissions
by Daniel-Constantin Mierla 18 Aug '14

18 Aug '14

Module: sip-router Branch: master Commit: 2fbc66fb8789a9e0749aca301119ab7c046676c5 URL: http://git.sip-router.org/cgi-bin/gitweb.cgi/sip-router/?a=commit;h=2fbc66f… Author: Daniel-Constantin Mierla <miconda(a)gmail.com> Committer: Daniel-Constantin Mierla <miconda(a)gmail.com> Date: Mon Aug 18 21:52:09 2014 +0200 tmx: t_precheck_tran() - light filtering of retransmissions - keep track of processed messages per process to catch retransmissions in early phase, to avoid simultaneous processing until transaction is created --- modules/tmx/tmx_mod.c | 59 ++++++++- modules/tmx/tmx_pretran.c | 348 +++++++++++++++++++++++++++++++++++++++++++++ modules/tmx/tmx_pretran.h | 30 ++++ 3 files changed, 435 insertions(+), 2 deletions(-) Diff: http://git.sip-router.org/cgi-bin/gitweb.cgi/sip-router/?a=commitdiff;h=2fb…

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[tracker] Comment added: dispatcher doesn't loadbalance correctly if one target is offline
by sip-router 18 Aug '14

18 Aug '14

THIS IS AN AUTOMATED MESSAGE, DO NOT REPLY. The following task has a new comment added: FS#460 - dispatcher doesn't loadbalance correctly if one target is offline User who did this - Sebastian Damm (sdamm) ---------- Yes, I'm not using round-robin. I'm dispatching based on the user in the To-URI. This is what we need to use so we know later on where the customer is registered. I haven't actively disabled the proxy in the config (if I remove it from there, everything works as expected), but the dispatcher kamailio detects that the target is offline. kamcmd> dispatcher.list { SET_NO: 1 SET: { SET_ID: 1 DEST: { URI: sip:127.0.0.14:5060 FLAGS: IP PRIORITY: 0 ATTRS: } DEST: { URI: sip:127.0.0.13:5060 FLAGS: AP PRIORITY: 0 ATTRS: } DEST: { URI: sip:127.0.0.12:5060 FLAGS: AP PRIORITY: 0 ATTRS: } DEST: { URI: sip:127.0.0.11:5060 FLAGS: AP PRIORITY: 0 ATTRS: } } } ---------- More information can be found at the following URL: http://sip-router.org/tracker/index.php?do=details&task_id=460#comment1598 You are receiving this message because you have requested it from the Flyspray bugtracking system. If you did not expect this message or don't want to receive mails in future, you can change your notification settings at the URL shown above.

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[tracker] Task closed: Dispatcher Round Robin Logic not Working with Dispatcher Table with FQDNs
by sip-router 18 Aug '14

18 Aug '14

THIS IS AN AUTOMATED MESSAGE, DO NOT REPLY. The following task is now closed: FS#459 - Dispatcher Round Robin Logic not Working with Dispatcher Table with FQDNs User who did this - Daniel-Constantin Mierla (miconda) Reason for closing: Not a bug Additional comments about closing: Good that you found the reason and fixed it. Thanks for reporting back, I am closing this item as no bug. More information can be found at the following URL: http://sip-router.org/tracker/index.php?do=details&task_id=459 You are receiving this message because you have requested it from the Flyspray bugtracking system. If you did not expect this message or don't want to receive mails in future, you can change your notification settings at the URL shown above.

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sr-dev August 2014