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37455 discussions

[Kamailio-Users] Dispatcher hash algorithms.
by Alex Balashov 06 Oct '08

06 Oct '08

I am curious, what exactly is the purpose and philosophy of the various hash algorithms in the dispatcher module? I am referring to the ones that allow the gateway in the route set to be determined through a hash of various SIP headers, such as the From URI, the To URI, the Call-ID GUID, etc. No guarantee of fair distribution - or in fact, any distribution that can be characterised by any describable pattern whatsoever - is implied by these algorithms. Additionally, it seems that without knowing (1) The exact hash algorithm in use; (2) The distribution that this hash algorithm would yield for a given set of possible values of these header fields, which in many cases are specifically intended to be pseudorandom (e.g. Call-ID), there is absolutely no way to determine, from any meaningfully deterministic perspective, which numerical entry in the route set these algorithms would computationally yield. So, I guess my question is: With no implied uniformity or weighting in the distribution whatsoever based on the incidental character of such values, what practical use does it serve to use any algorithms except round-robin or random? Is it expected that the user will plot the hash values against a log of given input strings to determine how the distribution will shape up? Is there some reason why the sort of profoundly lopsided distribution that may create might be desirable? Thanks, -- Alex Balashov Evariste Systems Web : http://www.evaristesys.com/ Tel : (+1) (678) 954-0670 Direct : (+1) (678) 954-0671 Mobile : (+1) (706) 338-8599

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[Kamailio-Users] CDRTools: Error instantiating db class:
by Tiago Rés 06 Oct '08

06 Oct '08

Hello all, When I login to CDRTool, it appears this error ("Error instantiating db class:") in the main page (CDRs). Any suggestion? Thanks! Tiago

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[Serusers] lcr module and cancel
by Deepak 06 Oct '08

06 Oct '08

Hi, I have the following issue: I am using lcr module to select a gw from a set of gw's based upon R-URI prefixes. All is working fine. The issue is with a CANCEL that is sent by the UAC that originates the call before a dialog can be established. This implies that the CANCEL cannot be routed to the correct GW since SER see a CANCEL and simply returns "487 request terminated". How can I forward the CANCEL to the GW the the original INVITE was forwarded to? Any help appreciated.....

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[Kamailio-Users] [offtopic] update vs delete/insert
by Daniel-Constantin Mierla 06 Oct '08

06 Oct '08

Hello, I am trying to get out you knowledge as DBA ... in some discussions in the past was brought out that in some cases doing a delete on primary key followed by a pure insert might be faster than one update. It might be dependent of DB server type and perhaps the question would have better answer in appropriate db-specific mailing lists, but I want to see if some of you has more experience/insights about this and is willing to share or got into same dilemma. Thanks, Daniel -- Daniel-Constantin Mierla http://www.asipto.com

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[Kamailio-Users] Carrierroute module: preffix qty?
by Pablo Bertuzzi 06 Oct '08

06 Oct '08

Hi Forum, I want to use carrierroute to terminate 50,000 preffixes to a PSTN gw and block 100,000. So I created 50,000 records with gw ip as rewrite_host. However I only was able to start kamailio with no more than about 2,200 records in carrierroute mysql table. Is it possible to use carrierroute in such a way? Find below log with error: Sep 29 13:36:22 sip-proxy /usr/local/sbin/kamailio[2569]: INFO:carrierroute:bind_data_loader: use database as configuration source Sep 29 13:36:22 sip-proxy /usr/local/sbin/kamailio[2569]: INFO:carrierroute:load_route_data: name default, id 0, trees: 1 Sep 29 13:36:22 sip-proxy /usr/local/sbin/kamailio[2569]: INFO:carrierroute:add_carrier_tree: add carrier default Sep 29 13:36:22 sip-proxy /usr/local/sbin/kamailio[2569]: INFO:carrierroute:add_carrier_tree: carrier default not found, add it Sep 29 13:36:22 sip-proxy /usr/local/sbin/kamailio[2569]: INFO:carrierroute:add_tree: tree default has internal id 0 Sep 29 13:36:22 sip-proxy /usr/local/sbin/kamailio[2569]: INFO:carrierroute:add_carrier_tree: created carrier tree: default, with id 0 and 1 trees Sep 29 13:36:22 sip-proxy /usr/local/sbin/kamailio[2569]: ERROR:db_mysql:db_mysql_convert_row: no private memory left Sep 29 13:36:22 sip-proxy /usr/local/sbin/kamailio[2569]: ERROR:db_mysql:db_mysql_convert_rows: error while converting row #2282 Sep 29 13:36:22 sip-proxy /usr/local/sbin/kamailio[2569]: ERROR:db_mysql:db_mysql_convert_result: error while converting rows Sep 29 13:36:22 sip-proxy /usr/local/sbin/kamailio[2569]: ERROR:db_mysql:db_mysql_store_result: error while converting result Sep 29 13:36:22 sip-proxy /usr/local/sbin/kamailio[2569]: ERROR:core:db_do_query: error while storing result Sep 29 13:36:22 sip-proxy /usr/local/sbin/kamailio[2569]: ERROR:carrierroute:load_route_data: Failed to query database. Sep 29 13:36:22 sip-proxy /usr/local/sbin/kamailio[2569]: ERROR:carrierroute:prepare_route_tree: could not load routing data Sep 29 13:36:22 sip-proxy /usr/local/sbin/kamailio[2569]: ERROR:carrierroute:mod_init: could not prepare route tree Sep 29 13:36:22 sip-proxy /usr/local/sbin/kamailio[2569]: ERROR:core:init_mod: failed to initialize module carrierroute Sep 29 13:36:22 sip-proxy /usr/local/sbin/kamailio[2569]: ERROR:core:main: error while initializing modules

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[Kamailio-Users] Developing Sh interface between the AS(OPENSER/OPENSIPS)and HSS
by suresh tattikota 06 Oct '08

06 Oct '08

hi all I am using the Openser(Opensips) as apllication server . i am developing Sh interface between the AS and HSS. For developing the Sh interface i am using the CDiameterpeer , here i am getiing memory and locking errors. And for using the CDiameterpeer as standalone library what steps i have to follow ... Thanks suresh :)

2 1

Re: [Kamailio-Users] nested redirect
by Daniel-Constantin Mierla 05 Oct '08

05 Oct '08

Hello, your main route block is something loke: route { if(is_method("INVITE")) { .... } exit; } So, apart of INVITE, every other sip request is dropped. See default config file to get a better understanding. kamailio/openser discards by default any sip request received if there is no action to forward for it. Cheers, Daniel Kent Pirlo wrote: > Attached is the full test config I am using.. I have gone back and forth trying a few things, but this is the latest.. If you have a another way to achieve the same result, I am open to change how I'm trying to do it. > > Thanks again for your help. > > Kent > > > -----Original Message----- > From: Daniel-Constantin Mierla [mailto:miconda@gmail.com] > Sent: Tuesday, September 23, 2008 5:50 AM > To: Kent Pirlo > Cc: users > Subject: Re: [Kamailio-Users] nested redirect > > Hello, > > sorry, you were right, there was a pcap attachment! The ACK looks ok. > Seems that ACK is quickly discarded by the script. Is the config you > pasted in your first email complete? I need to see it all the understand > how the ack get's routed and where could be dropped by the config. > > Cheers, > Daniel > > > > On 09/17/08 18:42, Kent Pirlo wrote: > >> There should have been a 20k attachment.. redirect.cap.. from tethereal. >> Let me know if you do not have it, and I will re-send it. >> >> kent >> >> -----Original Message----- >> From: Daniel-Constantin Mierla [mailto:miconda@gmail.com] >> Sent: Wednesday, September 17, 2008 6:43 AM >> To: Kent Pirlo >> Cc: users >> Subject: Re: [Kamailio-Users] nested redirect >> >> Hello, >> >> what you sent is the debug from kamailio/openser, which is useful, but I >> would need the sip messages, you can use ngrep for that, do >> ngrep -d any -qt -W byline port 5060 >> >> on your openser/kamailio server and send the output. >> >> Thanks, >> Daniel >> >> >> On 09/17/08 02:22, Kent Pirlo wrote: >> >> >>> ... is my core switch, >>> ... is my openser/Kamailio redirect server >>> ... is a redirect server from a carrier of ours that returns a billing TN in contact header.. >>> >>> >>> Here is the debug of the incoming ACK from the core switch after being sent the 300... >>> >>> >>> Sep 16 15:49:50 [6505] DBG:core:parse_msg: SIP Request: >>> Sep 16 15:49:50 [6505] DBG:core:parse_msg: method: <ACK> >>> Sep 16 15:49:50 [6505] DBG:core:parse_msg: uri: <sip:...@...> >>> Sep 16 15:49:50 [6505] DBG:core:parse_msg: version: <SIP/2.0> >>> Sep 16 15:49:50 [6505] DBG:core:parse_headers: flags=2 >>> Sep 16 15:49:50 [6505] DBG:core:parse_to_param: tag=391854ebdd4d0c63cf50836cbb12191e-6708 >>> Sep 16 15:49:50 [6505] DBG:core:parse_to: end of header reached, state=29 >>> Sep 16 15:49:50 [6505] DBG:core:parse_to: display={}, >>> Sep 16 15:49:50 [6505] DBG:core:get_hdr_field: <To> [75]; >>> Sep 16 15:49:50 [6505] DBG:core:get_hdr_field: to body >>> Sep 16 15:49:50 [6505] DBG:core:get_hdr_field: cseq <CSeq>: <1> <ACK> >>> Sep 16 15:49:50 [6505] DBG:core:parse_via_param: found param type 232, <branch> = <z9hG4bKdce3ac34730f843a5a9b9c7002690f22>; state=16 >>> Sep 16 15:49:50 [6505] DBG:core:parse_via: end of header reached, state=5 >>> Sep 16 15:49:50 [6505] DBG:core:parse_headers: via found, flags=2 >>> Sep 16 15:49:50 [6505] DBG:core:parse_headers: this is the first via >>> Sep 16 15:49:50 [6505] DBG:core:receive_msg: After parse_msg... >>> Sep 16 15:49:50 [6505] DBG:core:receive_msg: preparing to run routing scripts... >>> Sep 16 15:49:50 [6505] DBG:sl:sl_filter_ACK: to late to be a local ACK! >>> Sep 16 15:49:50 [6505] DBG:core:destroy_avp_list: destroying list (nil) >>> Sep 16 15:49:50 [6505] DBG:core:receive_msg: cleaning up >>> >>> >>> >>> >>> -----Original Message----- >>> From: Daniel-Constantin Mierla [mailto:miconda@gmail.com] >>> Sent: Tuesday, September 16, 2008 5:10 AM >>> To: kentp(a)globalpops.com >>> Cc: users(a)lists.kamailio.org >>> Subject: Re: [Kamailio-Users] nested redirect >>> >>> Hello, >>> >>> can you post here the SIP messages? Will help to spot if there is >>> anything wrong with the ACK or something else in the signaling. >>> >>> Cheers, >>> Daniel >>> >>> >>> On 09/13/08 04:11, kentp(a)globalpops.com wrote: >>> >>> >>> >>>> i have a simple redirect server working: >>>> >>>> Call comes from switch (A) to kamailio redirect server (B).. >>>> (B) runs perl script to determine route >>>> (B) sends Stateless 300 redirect reply to (A). >>>> (A) sends ACK to (B). >>>> >>>> Now, I need to add a nested redirect... >>>> >>>> call comes from sitch (A) to kamailio redirect server (B).. >>>> (B) then needs to send the call to third party proxy (C).. >>>> (C) will return 302 redirect.. >>>> (B) sends ACK to (C) >>>> (B) needs to read the contact header, then run perl script to determine route (using the contact value >>>> returned from (c)) >>>> (B) then sends 300 redirect back to (A). >>>> (A) sends ACK back to (B) >>>> >>>> >>>> so far i have been trying something like this, but the final (A) ACK gets ignored and (B) keeps sending >>>> multiple 300's to (A): >>>> >>>> route { >>>> route(1); >>>> } >>>> >>>> route[1] { >>>> t_on_reply("1"); >>>> t_on_failure("2"); >>>> if (!t_relay("proxy.server.c:5060","0x02")) { >>>> sl_reply_error(); >>>> } >>>> onreply_route[1] { >>>> if(t_check_status("302")){ >>>> $var(lrn_from_bv) = $ct; >>>> } >>>> } >>>> failure_route[2] { >>>> >>>> if (t_check_status("3[0-9][0-9]")) { >>>> route(2); >>>> exit; >>>> } >>>> route[2] { >>>> if(perl_exec("callcheck")){ >>>> avp_pushto("$ru", "$avp(s:routes)/g"); >>>> t_reply("300","Go Here"); >>>> exit; >>>> } >>>> } >>>> >>>> >>>> >>>> -- Daniel-Constantin Mierla http://www.asipto.com

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[Serusers] LCR module and CANCEL
by Deepak 04 Oct '08

04 Oct '08

1 0

[Kamailio-Users] Presence Server returns a 404 Not here msg
by Yoo Chan Jeon 03 Oct '08

03 Oct '08

Hi, I setup the presence server. My sip phone sends a PUBLISH msg. Th presence server sends a 200 msg. My another sip phone sends a SUBSCRIBE msg. The presence server returns 202 msg, and NOTIFY msg. These msgs does not include user in the contact header My sip phone sends a 200 msg I sends a second SUBSCRIBE msg to refresh it. This time my subscribe msg does not include the user in the request msg because the presence server did not include the user in the contact header. The presence server replied back with a 404 messge. So I looked at the codes, and add the user in the contact header when the presence server replys back to a client. But I stll have a same 404 msg. Do I miss something? I always appreciate your help. Thanks. Jeon

2 1

[Kamailio-Users] openser.cfg children=4
by Asim Riaz 03 Oct '08

03 Oct '08

Hi, my openser.cfg is configured for childern=4, but I am seeing child processes? Thanks Asim Riaz

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