sr-users March 2008

sr-users@lists.kamailio.org

169 participants
237 discussions

[Serusers] Help with checking header fields

by Steven C. Blair

I need help constructing an if statement to check for a specific header field. If my proxy receives an INVITE I would like to check further into the message body for a connection address with a value of all zeros (0.0.0.0). Does anyone on this list know the syntax for performing this check? Thanks,Steve

16 years, 8 months

[Serusers] pls. help me on my installation

by Allan Jardinel

I'm using ubuntu 7.10 and install ser 0.9.7 and rtp, after the installation i test and it can call both users, when i try to restart the computer xten can not register anymore so i check the settings and its ok. but when i check the /var/run/ser.pid there is no file, also the /tmp/ser_fifo has no file so restart the ser using the /etc/ser restart or force-reload but still pid and fifo has no file. pls. help me to solve this problem.... Thank you.. Allan Send instant messages to your online friends http://uk.messenger.yahoo.com

16 years, 8 months

[OpenSER-Users] LCR Gateway Priority....

by Douglas Garstang

Can anyone tell me why gateways in LCR don't have a priority? We have multiple POP's where we originate calls from. The ITSP's that we send these calls to ALSO have multiple POP's. Choosing the best gateway isn't just a matter of choosing the least cost... It's also a matter of choosing the closest POP for that ITSP. Being able to set a priority for each gateway means I could do this... mysql> select * from lcr; +----+--------+---------------+--------+----------+ | id | prefix | from_uri | grp_id | priority | +----+--------+---------------+--------+----------+ | 8 | 1303 | @203.84.213.8 | 1 | 1 | <-- (Hong Kong) | 10 | 1303 | @67.151.19.114| 2 | 1 | <-- (USA) +----+--------+---------------+--------+----------+ mysql> select * from gw; +----+---------------------+--------+------------+------+------------+-----------+-------+--------+----+ | id | gw_name | grp_id | ip_addr | port | uri_scheme | transport | strip | prefix | dm | Priority +----+---------------------+--------+------------+------+------------+-----------+-------+--------+----+ | 12 | TELEGLOBE_CH_HKG_01 | 1 | 1079401702 | 5060 | 1 | 1 | NULL | NULL | 1 | 1 | 13 | VERIZON_CA_YTO_01 | 1 | 3517395939 | 5060 | 1 | 1 | NULL | NULL | 1 | 2 | 14 | ARBINET_CH_HKG_01 | 1 | 3423099979 | 5060 | 1 | 1 | NULL | NULL | 1 | 3 | 15 | TELEGLOBE_US_LAX_01 | 2 | 3517395939 | 5060 | 1 | 1 | NULL | NULL | 1 | 1 | 16 | VERIZON_CA_YTO_02 | 2 | 1079401702 | 5060 | 1 | 1 | NULL | NULL | 1 | 2 | 17 | ARBINET_US_LGA_01 | 2 | 3423099979 | 5060 | 1 | 1 | NULL | NULL | 1 | 3 +----+---------------------+--------+------------+------+------------+-----------+-------+--------+----+ As you can see here, for calls to to prefix 1303 from 203.84.213.8(Hong Kong), we'd send calls to gateways TELEGLOBE_CH_HKG_01, VERIZON_CA_YTO_01 and ARBINET_CH_HKG_01 in that order. For calls to 1303 from 67.151.19.114(the US), we'd send calls to the same our ITSP's in the same order, but use gateways in different POPS, TELEGLOBE_US_LAX_01, VERIZON_CA_YTO_02, ARBINET_US_LGA_01. What's really important here is that the choice of gateway for the cheapest ITSP can be modified to suit the location. Now, WITHOUT the priority, I have to do THIS instead... mysql> select * from lcr; +----+--------+----------------+--------+----------+ | id | prefix | from_uri | grp_id | priority | +----+--------+----------------+--------+----------+ | 1 | 1303 | @203.84.213.8 | 1 | 1 | | 2 | 1303 | @203.84.213.8 | 2 | 2 | | 3 | 1303 | @203.84.213.8 | 3 | 3 | | 5 | 1303 | @67.151.19.114 | 4 | 1 | | 6 | 1303 | @67.151.19.114 | 5 | 2 | | 7 | 1303 | @67.151.19.114 | 6 | 3 | +----+--------+----------------+--------+----------+ mysql> select * from gw; +----+---------------------+--------+------------+------+------------+-----------+-------+--------+----+ | id | gw_name | grp_id | ip_addr | port | uri_scheme | transport | strip | prefix | dm | +----+---------------------+--------+------------+------+------------+-----------+-------+--------+----+ | 12 | TELEGLOBE_CH_HKG_01 | 1 | 1079401702 | 5060 | 1 | 1 | NULL | NULL | 1 | | 13 | VERIZON_CA_YTO_01 | 2 | 3517395939 | 5060 | 1 | 1 | NULL | NULL | 1 | | 14 | ARBINET_CH_HKG_01 | 3 | 3423099979 | 5060 | 1 | 1 | NULL | NULL | 1 | | 15 | TELEGLOBE_US_LAX_01 | 4 | 3517395939 | 5060 | 1 | 1 | NULL | NULL | 1 | | 16 | VERIZON_CA_YTO_02 | 5 | 1079401702 | 5060 | 1 | 1 | NULL | NULL | 1 | | 17 | ARBINET_US_LGA_01 | 6 | 3423099979 | 5060 | 1 | 1 | NULL | NULL | 1 | +----+---------------------+--------+------------+------+------------+-----------+-------+--------+----+ As you can see, solution 1 requires LESS columns in the database. What other options do I have? I guess I could create separate lcr and gw tables for every POP we have... yuck. Unfortunately, there is no priority column in the gateway table. :( I see someone else asked about it a while ago... http://www.mail-archive.com/devel@openser.org/msg06757.html Doug. ____________________________________________________________________________________ Be a better friend, newshound, and know-it-all with Yahoo! Mobile. Try it now. http://mobile.yahoo.com/;_ylt=Ahu06i62sR8HDtDypao8Wcj9tAcJ

16 years, 8 months

[OpenSER-Users] LCR Failover

by Douglas Garstang

I'd like to think I'm not stupid, but I've been dealing with OpenSER for 2-3 years now and it still frustrates me just as much as it did the very first time I looked at it. Can LCR do failover? I have this below. I can see that one of my gateways is selected, seemingly at random, and then when it doesn't reply (because I used a bogus IP), it doesn't time-out after 3s and go to the next gw. Is this possible? How do I do it? Btw... can anyone recommend a book on OpenSER, since the documentation is so lacking? modparam("tm", "fr_inv_timer_avp", "$avp(i:705)") route{ $avp(i:705) = "3"; ... if (!lookup("location")) { switch ($retcode) { case -1: case -3: t_newtran(); sl_send_reply("100","Trying"); if (!load_gws()) { sl_send_reply("500", "Internal server error, unable to load gateways"); exit; } if(!next_gw()){ sl_send_reply("503", "Service not available, no gateways found"); exit; }; route(1); } } route[1] { if (is_method("INVITE")) { t_on_branch("2"); t_on_reply("2"); t_on_failure("1"); } if (!t_relay()) { sl_reply_error(); }; exit; } ____________________________________________________________________________________ Be a better friend, newshound, and know-it-all with Yahoo! Mobile. Try it now. http://mobile.yahoo.com/;_ylt=Ahu06i62sR8HDtDypao8Wcj9tAcJ

16 years, 8 months

[Serusers] How do you force SDP c= ipaddr to be a specific value that isn't either rtpproxy interface IP?

by Frank Durda IV

I have a problem with SER 2.0.0-RC1 and rtpproxy that needs some help. I have a PSTN gateway config and a SER box all in a 10.x.x.x address space. Directly connected to two interfaces on the connect to a Cisco router, which performs 1:1 NAT conversion to provide public Internet IPs to those interfaces, one for SIP and one for RTP. (They are separate for bandwidth, debugging and access-list reasons.) Another two interfaces on the SER connect to the PSTN switch, which has separate ports for SIP and RTP traffic. Across the Internet or direct connections to the Cisco router are from Asterisk boxes or similar devices that proxy all SIP/RTP data from their SIP phones. It looks like this: Asterisk SIP SIP SIP Server +-----+ +-+ +------+ 66.1.2.3--internet--208.4.5.6|Cisco|----10.1.1.2|S|10.2.1.1--.2|PSTN | | 1:1 | |E| |Switch| 208.4.5.7| NAT |----10.5.1.2|R|10.6.1.1--.2|TDM | +-----+ +-+ +------+ RTP RTP RTP 208.4.5.6 is converted to 10.1.1.2 and vice versa 208.4.5.7 is converted to 10.5.1.2 and vice versa (Cisco command) ip nat inside source static 10.1.1.2 208.4.5.6 ip nat inside source static 10.5.1.2 208.4.5.7 rtpproxy is in use, and has 10.5.1.2(em5) (toward Cisco) and 10.6.1.1(em4) (toward PSTN switch). SER listens on 10.1.1.2(em1) and 10.2.1.1(em0). Ser.cfg takes care of the small amount of SIP-related tweaking that must be done to make SIP work: if (dst_ip==10.1.1.2) { #Received on em1 force_send_socket("10.2.1.1"); #emit on em0 rewritehost("10.2.1.2"); #Send to PSTN Switch $gw_ip = "10.2.1.2"; #Send to PSTN Switch When the INVITE message finally reaches the PSTN switch, it says: U 2008/03/23 04:05:55.780069 10.2.1.1:5060 -> 10.2.1.2:5060 INVITE sip:4097679102@10.2.1.2 SIP/2.0. Via: SIP/2.0/UDP 10.2.1.1;branch=z9hG4bK7572.3545b131.0. Via: SIP/2.0/UDP 66.1.2.3:5060;branch=z9hG4bK39eee695;rport=5060. From: "VOIP TEST 1000" <sip:4697271700@66.1.2.3>;tag=as571000e7. To: <sip:4097679102@208.4.5.6>. Contact: <sip:4697271700@66.1.2.3>. Call-ID: 2bf456fe3016fd6b62a1649c7cb6cd75(a)66.1.2.3. CSeq: 102 INVITE. User-Agent: Asterisk PBX. Max-Forwards: 16. Date: Sun, 23 Mar 2008 04:05:50 GMT. Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY. Supported: replaces. Content-Type: application/sdp. Content-Length: 490. . v=0. o=root 55522 55522 IN IP4 66.1.2.3. s=session. c=IN IP4 10.6.1.1. t=0 0. m=audio 35010 RTP/AVP 0 3 8 112 5 10 7 97 111 101. a=rtpmap:0 PCMU/8000. a=rtpmap:3 GSM/8000. a=rtpmap:8 PCMA/8000. a=rtpmap:112 AAL2-G726-32/8000. a=rtpmap:5 DVI4/8000. a=rtpmap:10 L16/8000. a=rtpmap:7 LPC/8000. a=rtpmap:97 iLBC/8000. a=fmtp:97 mode=30. a=rtpmap:111 G726-32/8000. a=rtpmap:101 telephone-event/8000. a=fmtp:101 0-16. a=silenceSupp:off - - - -. a=ptime:20. a=sendrecv. So the invite sent to the PSTN looks wonderful, correctly pointing SIP and RTP back to the SER box. The problem is on the Cisco side of the SER box, and shows up when the 183/200 messages are emitted by the SER. SER/rtpproxy rewrite the c=IN IP4 line to point to 10.5.1.2, which would be fine except that I need the public IP address 208.4.5.7 to appear in this position. I have tried using force_rtp_proxy("flags","208.4.5.7") in the reply_route section, and I know it is getting executed, but nothing changes. I've tried a variety of flag combinations, but obviously haven't tried all 720 combinations (although it feels like I have). I also tried fix_nated_sdp("2") by itself, with an empty force_rtp_proxy() and a force_rtp_proxy("","208.4.5.7") and all that did was create a "none of the above value" for c= of 10.6.1.110.5.1.2, pasting the two IP addresses together from the rtpproxy command line, and ignoring the value right value I'm trying to provide. So, the question is: How do you say to SER "Here is the value that should be used for c= on this call"? How do I set this? For complex reasons eliminated here to make the example simple, extending the public IP address over to the em5 interface so it is public already is not practical. I need a fix that changes the SDP c= value to one I will know based on whom the distant asterisk server (or equivalent) device will be. There may be other fields that also need fixing for RFC compliancy, but c= being wrong is the current problem. Thanks for suggestions.

16 years, 8 months

[OpenSER-Users] unixODBC and SQLite???

by Douglas Garstang

/etc/odbc.ini: [sqlite1] Description = SQLite Driver = SQLite Database = /root/test.db Timeout = 9000 Trace = Yes TraceFile = /tmp/sqlite.log /etc/odbcinst.ini: [SQLite] Description = SQLite ODBC Driver Driver = /usr/local/lib/libsqlite3odbc.so Setup = /usr/local/lib/libsqlite3odbc.so openser.cfg: modparam("avpops", "db_url", "unixodbc://localhost/sqlite1") What's the correct format for specifying the DSN when using SQLite with ODBC? SQLite doesn't use a user/password or host. I tried the above, "unixodbc://localhost/sqlite1" and openser barfs with: ERROR:unixodbc:new_connection: failed to connect I also tried: modparam("avpops", "db_url", "unixodbc://sqlite1") and openser barfed with: new_db_id: Error while parsing database URL: unixodbc://sqlite1 What's the correct format? Is it even supported in Openser 1.2.0? Thanks, Doug ____________________________________________________________________________________ Looking for last minute shopping deals? Find them fast with Yahoo! Search. http://tools.search.yahoo.com/newsearch/category.php?category=shopping

16 years, 8 months

[OpenSER-Users] AVP_TABLE.. Why is it required?

by Douglas Garstang

I put this in openser.cfg: modparam("avpops","avp_url","mysql://unixodbc:passwd@host/database") When I start openser it complains and then EXITS. ERROR:avpops_init: "AVP_DB" present but "AVP_TABLE" found empty Why do I need to specify an avp_table? I plan to use avp_db_query() to retrieve values from another table. That's if using avp_db_query against an odbc source is even possible. People say it is, but given that it's not documented, I'm not sure. Doug. ____________________________________________________________________________________ Be a better friend, newshound, and know-it-all with Yahoo! Mobile. Try it now. http://mobile.yahoo.com/;_ylt=Ahu06i62sR8HDtDypao8Wcj9tAcJ

16 years, 8 months

[OpenSER-Users] AVPops avp_url???

by Douglas Garstang

I'm trying to use avpops with unixodbc. What's the format of the avp_uri for unixodbc? The documentation has: modparam("avpops","avp_url","mysql://user:passwd@host/database") What format do I use? Is it this? Is it something else? modparam("avpops","avp_url","unixodbc://user:passwd@host/database") Why isn't this documented? Doug ____________________________________________________________________________________ Looking for last minute shopping deals? Find them fast with Yahoo! Search. http://tools.search.yahoo.com/newsearch/category.php?category=shopping

16 years, 8 months

[OpenSER-Users] O'SER behind http Proxy which requires username and Password

by luzango mfupe

Hi Mates, IM having my OpenSER in the university campus where all the communication have to go through a http Proxy which always asks for user name and password. Where in the O'SER config file should i place these credentials ( http://user:pass@proxyname:port";) Do i have to do the same in the Mediaproxy config file as well? WBR, LU.

16 years, 8 months

[OpenSER-Users] UA Get's Disconnected Once a call is initiated

by Ali Jawad

Dear All I am using Openser with TLS, the client connects successfully however once I press the call button the connection to the client get's closed "Actually the client stays open however I do check with netstat and the connection is not there anymore". As for the openser server The following is noted in the logs Mar 18 15:13:56 [1396] DBG:core:handle_ser_child: read response= b613c8d8, 1, fd -1 from 5 (1378) Mar 18 15:13:56 [1378] DBG:core:tcp_send: after receive_fd: c= 0xb613c8d8 n=4 fd=14 Mar 18 15:13:56 [1378] DBG:core:tcp_send: sending... Mar 18 15:13:56 [1378] DBG:core:tls_update_fd: New fd is 14 Mar 18 15:13:56 [1378] DBG:core:tls_write: write was successful (580 bytes) Mar 18 15:13:56 [1378] DBG:core:tcp_send: after write: c= 0xb613c8d8 n=580 fd=14 Mar 18 15:13:56 [1378] DBG:core:tcp_send: buf= SIP/2.0 408 Request Timeout Via: SIP/2.0/TLS 192.168.0.149:9071;rport=9071;branch=z9hG4bK30231106nh26;received=my.own .public.ip From: 9613041705 <sip:9613041705@server.ip>;tag=30231106 To: 9613041705 <sip:9613041705@server.ip>;tag=22c184cf1a1beaaaab06669b2c48f35d-e4d8 Call-ID: F96E5BE097AAtYP4(a)server.ip CSeq: 2 REGISTER Server: OpenSER (1.3.0-tls (i386/linux)) Content-Length: 0 Warning: 392 xx.yy.yy.yy:443 "Noisy feedback tells: pid=1378 req_src_ip=xx.xx.xx.xx req_src_port=9071 in_uri=sip:87.236.144.13 out_uri=sip:pstn.gw.ip.here:5060 via_cnt==0" Mar 18 15:13:56 [1378] DBG:tm:relay_reply: sent buf=0x816aed8: SIP/2.0 4..., shmem=0xb614fb38: SIP/2.0 4 Mar 18 15:13:56 [1378] DBG:tm:final_response_handler: done Mar 18 15:13:56 [1385] DBG:core:tls_update_fd: New fd is 20 Mar 18 15:13:56 [1385] DBG:core:_tls_read: connection closed cleanly Mar 18 15:13:56 [1385] DBG:core:tcp_read_req: EOF Mar 18 15:13:56 [1385] DBG:core:io_watch_del: io_watch_del (0x813d8c0, 20, -1, 0x10) fd_no=2 called Mar 18 15:13:56 [1385] DBG:core:release_tcpconn: releasing con 0xb613c8d8, state -1, fd=20, id=12 Mar 18 15:13:56 [1385] DBG:core:release_tcpconn: extra_data 0xb614c9f0 Mar 18 15:13:56 [1396] DBG:core:handle_tcp_child: reader response= b613c8d8, -1 from 0 Mar 18 15:13:56 [1396] DBG:core:tcpconn_destroy: destroying connection 0xb613c8d8, flags 0002 Mar 18 15:13:56 [1396] DBG:core:tls_close: closing SSL connection Mar 18 15:13:56 [1396] DBG:core:tls_update_fd: New fd is 24 Mar 18 15:13:56 [1396] DBG:core:tls_shutdown: shutdown successful Mar 18 15:13:56 [1396] DBG:core:tls_tcpconn_clean: entered Mar 18 15:13:58 [1378] DBG:tm:utimer_routine: timer routine:7,tl=0xb615f734 next=(nil), timeout=3056900000 Mar 18 15:14:01 [1378] DBG:tm:timer_routine: timer routine:2,tl=0xb615f630 next=(nil), timeout=3060 Mar 18 15:14:01 [1378] DBG:tm:wait_handler: removing 0xb615f5e8 from table Mar 18 15:14:01 [1378] DBG:tm:delete_cell: delete transaction 0xb615f5e8 Mar 18 15:14:01 [1378] DBG:tm:wait_handler: done Mar 18 15:14:41 [1378] DBG:presence:msg_watchers_clean: cleaning pending subscriptions Mar 18 15:14:41 [1378] DBG:core:db_free_rows: freeing 0 rows Mar 18 15:14:41 [1378] DBG:presence:msg_presentity_clean: cleaning expired presentity information Mar 18 15:14:41 [1378] DBG:core:db_free_rows: freeing 0 rows With Regards Ali Jawad System Administrator Splendor Telecom (www.splendor.net) Beirut, Lebanon Phone: +961 1 373725 Fax: + 961 1 375554

16 years, 8 months

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sr-users March 2008