sr-users

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42 participants
37519 discussions

Incorrect registrar Expires handling
by Andreas Granig 08 Jun '11

08 Jun '11

Hi, Found an interesting call-flow today where a client (pjsip) is behind NAT and behaves like this during registration (kamailio-3.1.3): REGISTER sip:somedomain.com Contact: <sip:me@10.0.0.7:2001;ob> Expires: 900 SIP/2.0 200 OK Contact: <sip:me@10.0.0.7:2001;ob>;expires=900;received="sip:1.2.3.4:3001" REGISTER sip:somedomain.com Contact: <sip:me@1.2.3.4:3001;transport=UDP;ob> Contact: <sip:me@10.0.0.7:2001;ob>;expires=0 Expires: 900 SIP/2.0 200 OK Contact: <sip:me@10.0.0.7:2001;ob>;expires=900;received="sip:1.2.3.4:3001", <sip:me@1.2.3.4:3001;transport=UDP;ob>;expires=900 So obviously the client is trying to unregister its private contact (for whatever reason - probably to play nice with registrars not supporting far-end NAT traversal), and tries to register the Contact with the "received" address instead. Kamailio however ignores the ";expires=0" for the private Contact and just saves both of them with the expiry value given in the Expires header. Taking the client behavior aside for now: is this the correct behavior of the registrar module? In RFC3261 chapter 10.2.1.1 it says: #+ There are two ways in which a client can suggest an expiration interval for a binding: through an Expires header field or an "expires" Contact header parameter. The latter allows expiration intervals to be suggested on a per-binding basis when more than one binding is given in a single REGISTER request, whereas the former suggests an expiration interval for all Contact header field values that do not contain the "expires" parameter. #- So I'd say that in my specific case "expires" Contact header param (which is 0 for the binding having 10.0.0.7) should de-register this particular binding, whereas the Expires header should be applied to the second binding (having the 1.2.3.4) because it doesn't carry an "expires" param. Opinions on that one? Andreas

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incorrect port 0 in reply from rtp proxy
by Mokhtar Bengana 08 Jun '11

08 Jun '11

I have Kamailio and rtpproxy running behind NAT on the same server. Inbound calls to Kamailio from the outside work fine and I have two way audio but when I try an outbound echo test call the call connects but I have no audio. rtpproxy seems to be running and all rtp ports are poiting to Kamailio internal ip. The syslog is showing this error. Not sure what's missing in the config. Appreciate any inputs. Thanks. root@Kamailio:~# tail /var/log/syslog Jun 3 01:24:02 Kamailio kamailio[810]: INFO: rtpproxy [rtpproxy.c:1403]: rtp proxy <udp:127.0.0.1:22222> found, support for it enabled Jun 3 01:25:05 Kamailio kamailio[791]: INFO: <core> [forward.c:786]: broken reply to forward - no 2nd via Jun 3 01:25:29 Kamailio kamailio[791]: ERROR: rtpproxy [rtpproxy.c:2211]: incorrect port 0 in reply from rtp proxy Jun 3 01:25:30 Kamailio kamailio[793]: ERROR: rtpproxy [rtpproxy.c:2211]: incorrect port 0 in reply from rtp proxy

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t.38 fax
by Sanjeev Singh 07 Jun '11

07 Jun '11

does SER support t.38 fax? what other features related to fax does SER support. please expain in detail. thanks, Sanjeev Singh

2 1

xhttp and dollar sign
by Andreas Granig 06 Jun '11

06 Jun '11

Hi, Is it possible to somehow quote the $ sign in xhttp_send_reply() in order not to be interpreted by kamailio-3.1.3? Tried with "\" and putting the whole body in single quotes, but I always get this error message during startup: ERROR: <core> [pvapi.c:720]: wrong char [$/36] in [${foo}] ERROR: <core> [sr_module.c:1156]: bad PVE format: "${foo}" ERROR: <core> [mod_fix.c:501]: Cannot convert function parameter 1 to spve So I actually just want to return the string "${foo}". Andreas

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Error bad syntax - DEBUG_FLAGS
by Skyler 06 Jun '11

06 Jun '11

Hi all, I'm new to Kamailio (3.1), learning the configuration language. I'm trying to take the advice from one of the docs to create a DEBUG block and place calls everywhere in my script. Right out of the gate I get these errors on loading. Can someone tell me where I went wrong and how I can fix this? It says flag not declared though it's there and I'm a bit lost. 0(10986) : <core> [cfg.y:3412]: parse error in config file //etc/kamailio/kamailio.cfg, line 800, column 6: syntax error 0(10986) : <core> [cfg.y:3412]: parse error in config file //etc/kamailio/kamailio.cfg, line 800, column 6: missing '(' or ')' ? 0(10986) : <core> [cfg.y:3412]: parse error in config file //etc/kamailio/kamailio.cfg, line 800, column 6: bad command: missing ';'? 0(10986) : <core> [cfg.y:3412]: parse error in config file //etc/kamailio/kamailio.cfg, line 800, column 18: '('')' expected (function call) 0(10986) : <core> [cfg.y:3412]: parse error in config file //etc/kamailio/kamailio.cfg, line 800, column 18: bad command: missing ';'? 0(10986) : <core> [cfg.y:3412]: parse error in config file //etc/kamailio/kamailio.cfg, line 800, column 20: bad command 0(10986) : <core> [cfg.y:3412]: parse error in config file //etc/kamailio/kamailio.cfg, line 802, column 24: flag not declared #------------------------------ # Flags #------------------------------ #!define FLAG_DEBUG 1 ... route { # Call debug flags route(ROUTE_DEBUG_FLAGS); ..... route[ROUTE_DEBUG_FLAGS] { resetflag(FLAG_DEBUG); #------------------------------------------------------------ # Methods that will have debugging turned on #----------------------------------------------------------- if (is_method("ACK")) { resetflag(FLAG_DEBUG); } else if (is_method("BYE")) { setflag(FLAG_DEBUG); } else if (is_method("CANCEL")) { setflag(FLAG_DEBUG); } else if (is_method("INVITE")) { setflag(FLAG_DEBUG); } else if (is_method("OPTIONS")) { setflag(FLAG_DEBUG); } else if (is_method("PUBLISH")) { setflag(FLAG_DEBUG); } else if (is_method("REGISTER")) { resetflag(FLAG_DEBUG); } else if (is_method("MESSAGE")) { setflag(FLAG_DEBUG); } else if (is_method("NOTIFY")) { setflag(FLAG_DEBUG); } else if (is_method("SUBSCRIBE")) { setflag(FLAG_DEBUG); } else if (is_method("INFO")) { setflag(FLAG_DEBUG); } else if (is_method("PRACK")) { setflag(FLAG_DEBUG); } else if (is_method("REFER")) { setflag(FLAG_DEBUG); } else { setflag(FLAG_DEBUG); } } }

2 2

Using =~ to get the group identifier with longest match
by Iñaki Baz Castillo 06 Jun '11

06 Jun '11

Hi, I wonder how feasible is the folowing: I have a regular expresion like: REGEXP = "^((1|20)|(13|3|4)|(5|6))" There are 3 matching groups: 1) (1|20) 2) (13|3|4) 3) (5|6) I want to match the RURI user, let's suppose $rU = "138787686223". In this case the above regexp matches groups 1 and 2, but since group 2 matching is longest ("13" is longest than "1") I want to get value 2. In case $rU = "999999" I need to get "null", in case $rU = "1000022323" I need to get "1". AFAIK there is no way to do it with current regular expression utils in Kamailio, but maybe I miss something. Thanks a lot. -- Iñaki Baz Castillo <ibc(a)aliax.net>

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Questino about dialplan module
by Gary Chen 06 Jun '11

06 Jun '11

Kamailio 3.1.2 I am testing out dialplan module. Every time when I issue 'kamctl dialplan show', it shows what is in the database even if I have not yet issue "kamctl dialplan reload' after I changed data in database. I thought that dialplan is stored in the memory and you have to issue the reload before you can see the change. Why the ' kamctl dialplan show' display the data directly from mysql database? Does that mean that dialplan data is not stored in the memory? Gary

3 2

callback function of tm module
by Bruno Bresciani 06 Jun '11

06 Jun '11

Hi All, I'm having doubts in the implementation of the callback function module tm. As she calls the function to record register_tmcb ()? Can someome help me? Regards

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Re: [SR-Users] Questino about dialplan module
by Gary Chen 03 Jun '11

03 Jun '11

I am talking about kamctl dialplan command not mi. When you type in kamctl, it lists a lot commands. Are these commands still valid? See below: kamctl ../../sbin/kamctl 3.1.0 Existing commands: -- command 'start|stop|restart' restart ............................ restart Kamailio start .............................. start Kamailio stop ............................... stop Kamailio -- command 'acl' - manage access control lists (acl) acl show [<username>] .............. show user membership acl grant <username> <group> ....... grant user membership (*) acl revoke <username> [<group>] .... grant user membership(s) (*) -- command 'lcr' - manage least cost routes (lcr) lcr show_gws....... show database gateways lcr show_routes.... show database routes lcr dump_gws....... show in memory gateways lcr dump_routes.... show in memory routes lcr reload ........ reload lcr gateways and routes lcr eval_weights .. evaluates probability for given GW's weights -- command 'cr' - manage carrierroute tables cr show ....................................................... show tables cr reload ..................................................... reload tables cr dump ....................................................... show in memory tables cr addcn <carrier id> <carrier name> .......................... add a carrier name cr rmcn <carrier id> ......................................... rm a carrier name cr adddn <domain id> <domain name> ............................ add a domain name cr rmdn <domain id> .......................................... rm a domain name cr addcarrier <carrier> <scan_prefix> <domain> <rewrite_host> ................ <prob> <strip> <rewrite_prefix> <rewrite_suffix> ............... <flags> <mask> <comment> .........................add a carrier (prob, strip, rewrite_prefix, rewrite_suffix,................... flags, mask and comment are optional arguments) ............... cr rmcarrier <carrier> <scan_prefix> <domain> ................ rm a carrier -- command 'rpid' - manage Remote-Party-ID (RPID) rpid add <username> <rpid> ......... add rpid for a user (*) rpid rm <username> ................. set rpid to NULL for a user (*) rpid show <username> ............... show rpid of a user -- command 'add|passwd|rm' - manage subscribers add <username> <password> .......... add a new subscriber (*) passwd <username> <passwd> ......... change user's password (*) rm <username> ...................... delete a user (*) -- command 'add|dump|reload|rm|show' - manage trusted trusted show ...................... show db content trusted dump ...................... show cache content trusted reload .................... reload db table into cache trusted add <src_ip> <proto> <from_pattern> <tag> ....................... add a new entry ....................... (from_pattern and tag are optional arguments) trusted rm <src_ip> ............... remove all entres for the given src_ip -- command 'dispatcher' - manage dispatcher * Examples: dispatcher addgw 1 sip:1.2.3.1:5050 1 'outbound gateway' * dispatcher addgw 2 sip:1.2.3.4:5050 3 '' * dispatcher rmgw 4 dispatcher show ..................... show dispatcher gateways dispatcher reload ................... reload dispatcher gateways dispatcher dump ..................... show in memory dispatcher gateways dispatcher addgw <setid> <destination> <flags> <description> .......................... add gateway dispatcher rmgw <id> ................ delete gateway -- command 'db' - database operations db exec <query> ..................... execute SQL query db roexec <roquery> ................. execute read-only SQL query db run <id> ......................... execute SQL query from $id variable db rorun <id> ....................... execute read-only SQL query from $id variable db show <table> ..................... display table content -- command 'speeddial' - manage speed dials (short numbers) speeddial show <speeddial-id> ....... show speeddial details speeddial list <sip-id> ............. list speeddial for uri speeddial add <sip-id> <sd-id> <new-uri> [<desc>] ... ........................... add a speedial (*) speeddial rm <sip-id> <sd-id> ....... remove a speeddial (*) speeddial help ...................... help message - <speeddial-id>, <sd-id> must be an AoR (username@domain) - <sip-id> must be an AoR (username@domain) - <new-uri> must be a SIP AoR (sip:username@domain) - <desc> a description for speeddial -- command 'avp' - manage AVPs avp list [-T table] [-u <sip-id|uuid>] [-a attribute] [-v value] [-t type] ... list AVPs avp add [-T table] <sip-id|uuid> <attribute> <type> <value> ............ add AVP (*) avp rm [-T table] [-u <sip-id|uuid>] [-a attribute] [-v value] [-t type] ... remove AVP (*) avp help .................................. help message - -T - table name - -u - SIP id or unique id - -a - AVP name - -v - AVP value - -t - AVP name and type (0 (str:str), 1 (str:int), 2 (int:str), 3 (int:int)) - <sip-id> must be an AoR (username@domain) - <uuid> must be a string but not AoR -- command 'alias_db' - manage database aliases alias_db show <alias> .............. show alias details alias_db list <sip-id> ............. list aliases for uri alias_db add <alias> <sip-id> ...... add an alias (*) alias_db rm <alias> ................ remove an alias (*) alias_db help ...................... help message - <alias> must be an AoR (username@domain)" - <sip-id> must be an AoR (username@domain)" -- command 'domain' - manage local domains domain reload ....................... reload domains from disk domain show ......................... show current domains in memory domain showdb ....................... show domains in the database domain add <domain> ................. add the domain to the database domain rm <domain> .................. delete the domain from the database -- command 'cisco_restart' - restart CISCO phone (NOTIFY) cisco_restart <uri> ................ restart phone configured for <uri> -- command 'online' - dump online users from memory online ............................. display online users -- command 'monitor' - show internal status monitor ............................ show server's internal status -- command 'ping' - ping a SIP URI (OPTIONS) ping <uri> ......................... ping <uri> with SIP OPTIONS -- command 'ul|alias' - manage user location or aliases ul show [<username>]................ show in-RAM online users ul show --brief..................... show in-RAM online users in short format ul rm <username> [<contact URI>].... delete user's usrloc entries ul add <username> <uri> ............ introduce a permanent usrloc entry ul add <username> <uri> <expires> .. introduce a temporary usrloc entry -- command 'fifo' fifo ............................... send raw FIFO command -- command 'cisco_restart' - restart CISCO phone (NOTIFY) cisco_restart <uri> ................ restart phone configured for <uri> -- command 'online' - dump online users from memory online ............................. display online users -- command 'monitor' - show internal status monitor ............................ show server's internal status -- command 'ping' - ping a SIP URI (OPTIONS) ping <uri> ......................... ping <uri> with SIP OPTIONS -- command 'ul|alias' - manage user location or aliases ul show [<username>]................ show in-RAM online users ul show --brief..................... show in-RAM online users in short format ul rm <username> [<contact URI>].... delete user's usrloc entries ul add <username> <uri> ............ introduce a permanent usrloc entry ul add <username> <uri> <expires> .. introduce a temporary usrloc entry -----Original Message----- From: sr-users-bounces(a)lists.sip-router.org [mailto:sr-users-bounces@lists.sip-router.org] On Behalf Of Juha Heinanen Sent: Friday, June 03, 2011 3:50 PM To: SIP Router - Kamailio (OpenSER) and SIP Express Router (SER) -Users Mailing List Subject: [SR-Users] Questino about dialplan module Gary Chen writes: > I am testing out dialplan module. Every time when I issue 'kamctl > dialplan show', it shows what is in the database even if I have not > yet issue "kamctl dialplan reload' after I changed data in database. I > thought that dialplan is stored in the memory and you have to issue > the reload before you can see the change. Why the ' kamctl dialplan > show' display the data directly from mysql database? Does that mean > that dialplan data is not stored in the memory? there is no mi function to show dialplan rules in memory. i have no idea, what 'show' does. please read readme of dialplan module before asking questions about the module. -- juha _______________________________________________ SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list sr-users(a)lists.sip-router.org http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users

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IRC meeting today, 15:00GMT
by Daniel-Constantin Mierla 03 Jun '11

03 Jun '11

Hello, everyone that wants to discuss about the next major release (v3.2.0), please join us on IRC: Channel: #sip-router Server: irc.freenode.net Time: 15:00GMT/London (16:00 Berlin/Paris/Madrid, 10:00am New York) Cheers, Daniel -- Daniel-Constantin Mierla -- http://www.asipto.com http://linkedin.com/in/miconda -- http://twitter.com/miconda

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