March 2003 - sr-users - kamailio.org

[Serusers] ser, pstn gateways
by Jev 27 Jun '03

27 Jun '03

Hello all, Im using ser, with esteras softphone, and a couple of cisco ata186's. I have to say I really like ser, as it is small fast, and reliable without being over complicated. I would like to know what other ser users and developers use for pstn gateways? I have a openline4 card from voictronix, but there is no software support for sip (When I bought it I thought I would use h.323). I have looked at cisco's pstn gateway modules, but was turned off them because of price, and lack of clear straight forward information to name but two reasons. Ideally what I would like to have is a solution that would support at least 4 pstn lines (expandable to maybe 8), that would run on FreeBSD (or at worst linux), works well with sip & ser, with high quality audio, and minimal delays when dialing in out. TIA, -Emil

4 4

[Serusers] User Based Dialplans
by Fernando Nachtigall 07 May '03

07 May '03

Hi All, I need to implement an used based dialplans module on SER, so that depending on the user information stored in the database, a certain prefix should be inserted in the called number. Has anyone had a similar issue? Thanks Fernando --- Outgoing mail is certified Virus Free. Checked by AVG anti-virus system (http://www.grisoft.com) Version: 6.0.474 / Virus Database: 272 - Release Date: 4/18/2003

6 6

[Serusers] Serious defficiencies of the t_on_negative feature
by Maxim Sobolev 15 Apr '03

15 Apr '03

Folks, I am currently playing with t_on_negative feature trying to implement overflow routing (i.e. if original destination returns an error, then request should be adjusted somehow and redirected to some, possibly different, destination). I've started with the following config: route { [...] rewriteFromRoute(); if (method == "INVITE") { addRecordRoute(); }; if (method == "INVITE) { t_on_negative("1"); }; t_relay_to("address1", "port1"); } reply_route[1] { rewritehostport("address2:port2"); append_branch(); } But quickly found that after transaction was redirected to address2:port2, ACKs, BYEs, 200K and CANCELS are still being forwarded to address1:port1, despite containing valid Route fields pointing to address2:port2. Then I've modified it as follows to let ser use information from that field to route ACKs, 200OKs and BYEs: route { [...] rewriteFromRoute(); if (method == "INVITE") { addRecordRoute(); }; if (method == "INVITE" || method == "CANCEL") { # INVITEs and CANCELs if (method == "INVITE) { t_on_negative("1"); }; t_relay_to("address1", "port1"); } else { # ACKs, 200OKs, BYEs t_relay(); }; } reply_route[1] { rewritehostport("address2:port2"); append_branch(); } For the most of the time everything works like a charm - if address1:port1 is unreachable or replies with an error the request is being redirected to the second destination, BUT if the initiating UA tries to cancel transaction when transaction is already redirected but before receiving final "200 OK" from the second destination, the CANCEL request is forwarded to address1:port1, not to address2:port2 as it should be. I've tried to modify setup as follows, thinking that maybe in the case of CANCEL explicit specification of proxy address confuses ser, but no avail - in this case ser forwards the CANCEL request to its own address and eventually it dies with Too Many Hops. route { [...] rewriteFromRoute(); if (method == "INVITE") { addRecordRoute(); }; if (method == "INVITE") { # INVITEs t_on_negative("1"); t_relay_to("address1", "port1"); } else { # CANCELs, ACKs, 200OKs, BYEs t_relay(); }; } reply_route[1] { rewritehostport("address2:port2"); append_branch(); } I think that such behaviour arises from the fact that ser after branching a transaction doesn't keep an address this transaction was forwarded to. In my opinion, it needs to be corrected, so that after receiving CANCEL from the UA that initiated transaction ser probably should CANCEL *all* branches of this transaction. To do this it needs to be able to tell exactly where to send CANCELs. What do you think? -Maxim

2 2

[Serusers] pstn gateway survey
by Jiri Kuthan 02 Apr '03

02 Apr '03

Friends, please, can you help me and share with me privately which SIP2PSTN gateways you are using in your networks? I'ld like to get a better feeling of what devices today have reputation of being usable and with which of them SER has been tested. I'm interested in all-grade devices, from single FXO to SS7 gateways. I'll keep it for myself. Thank you a lot, -Jiri -- Jiri Kuthan http://iptel.org/~jiri/

8 13

Re: [Serusers] Alternative to Mysql?
by Daniel-Constantin MIERLA 01 Apr '03

01 Apr '03

Hello, see dbtext for that. But notice that the module has not been thoroughly tested. It is not included in v0.8.10 so you have to use a CVS snapshot which is quite unstable these days due to lots of changes. If you want to use it before the new release of ser is out you might get weird situations, but you can provide us some help with testing ... It is your choice ... -.- Best regards, Daniel David Beckemeyer wrote: >I'm trying to get SER up and I need auth. I'm not a Mysql user >and, frankly, I'd rather not need to learn it, just to get >authentication support. I wish there were a middle-ground >between no-auth at all and a full-blown Mysql installation. > >I tried the Cookbook approach, using Dan Austin's HOWTO for >setting up Mysql for SER, but the commands do not work as shown >so I'm left with learning Mysql through and through to debug >why those cookbook commands don't work. > >I'm very familiar with SIP and I want to test SER, not a new Sql >server DB engine. It seems like Mysql is a distraction to that >effort. > >Is anyone working on something like a flat-file module to >replace Mysql? Any pointers for the best place to start on >developing such a module (i.e. shortcuts)? > >Thanks, > > - david > >_______________________________________________ >Serusers mailing list >serusers(a)lists.iptel.org >http://lists.iptel.org/mailman/listinfo/serusers > > >

7 10

[Serusers] Proxy_authorize, www_authorize
by Lasse Jansson 31 Mar '03

31 Mar '03

Hi Michael, This is exactly what I would like to achieve. I understand the meaning of your pseudo code below, but alas I have not enough knowledge and skills to transform your pseudo code below into a working script. Could you please provide a real example ? Lasse Michael_Graff(a)isc.org wrote: > Nils Ohlmeier <nils(a)ohlmeier.de> writes: > > A proxy can challenge Invites and Byes, but should not do this with > > external Invites to your local user. Otherwise your your user > > wouldn't be reachable from outside. > > I implemented something much like this: > > if (to me): > if register > > www_authorize or fail if not a valid register > > done > > if claiming to be "From" one of the domains I accept > registrations for > > proxy_authorize > > done > > if not to me (I'm relaying for a local phone to an external address) > > proxy_authorize (once again, based on from address) > > done > > --Michael

3 10

Re: [Serusers] pstn gateway survey
by lgfausak＠august.net 31 Mar '03

31 Mar '03

Endpoint works. It is a very important point. I've tested perhaps 8 endpoints and only have 3 that 'work' with my Cisco/Iptel gear. ---greg > >Yes, you are right. Maybe we can call it Endpoint instead of Gateway. > >----- Original Message ----- >From: "Ricardo Villa" <ricvil(a)epm.net.co> >To: "Bo" <boman122(a)yahoo.com>; <serusers(a)lists.iptel.org> >Sent: Monday, March 31, 2003 1:37 PM >Subject: Re: [Serusers] pstn gateway survey > > >> How can the ATA186 be a PSTN gateway? It does not have FXO ports. >> >> >> ----- Original Message ----- >> From: "Bo" <boman122(a)yahoo.com> >> To: "Emil" <emil(a)mkc.co.za>; <serusers(a)lists.iptel.org>; "Jiri Kuthan" >> <jiri(a)iptel.org> >> Sent: Monday, March 31, 2003 12:40 PM >> Subject: Re: [Serusers] pstn gateway survey >> >> >> > Cisco AS5300 >> > Cisco AS5400 >> > Cisco ATA186 >> > >> > ----- Original Message ----- >> > From: "Emil" <emil(a)mkc.co.za> >> > To: <serusers(a)lists.iptel.org>; "Jiri Kuthan" <jiri(a)iptel.org> >> > Sent: Thursday, March 27, 2003 12:35 AM >> > Subject: Re: [Serusers] pstn gateway survey >> > >> > >> > > Cisco VG200 >> > > Cisco 2600 >> > > >> > > ----- Original Message ----- >> > > From: "Jiri Kuthan" <jiri(a)iptel.org> >> > > To: <serusers(a)lists.iptel.org> >> > > Sent: Thursday, March 27, 2003 5:01 AM >> > > Subject: [Serusers] pstn gateway survey >> > > >> > > >> > > > Friends, >> > > > >> > > > please, can you help me and share with me privately which SIP2PSTN >> > > > gateways you are using in your networks? I'ld like to get a better >> > > > feeling of what devices today have reputation of being usable and >> > > > with which of them SER has been tested. I'm interested in all-grade >> > > > devices, from single FXO to SS7 gateways. I'll keep it for myself. >> > > > >> > > > Thank you a lot, >> > > > >> > > > -Jiri >> > > > >> > > > -- >> > > > Jiri Kuthan http://iptel.org/~jiri/ >> > > > >> > > > _______________________________________________ >> > > > Serusers mailing list >> > > > serusers(a)lists.iptel.org >> > > > http://lists.iptel.org/mailman/listinfo/serusers >> > > _______________________________________________ >> > > Serusers mailing list >> > > serusers(a)lists.iptel.org >> > > http://lists.iptel.org/mailman/listinfo/serusers >> > >> > _______________________________________________ >> > Serusers mailing list >> > serusers(a)lists.iptel.org >> > http://lists.iptel.org/mailman/listinfo/serusers >> > >> >> _______________________________________________ >> Serusers mailing list >> serusers(a)lists.iptel.org >> http://lists.iptel.org/mailman/listinfo/serusers > >_______________________________________________ >Serusers mailing list >serusers(a)lists.iptel.org >http://lists.iptel.org/mailman/listinfo/serusers >

2 1

Re: [Serusers] ATA 186 Behind NAT
by Bo 31 Mar '03

31 Mar '03

On ATA side, you just need to enable the 'Receiver-tagged VIA header' feature by setting bitt 22 of ConnectMode to 1. On SER side, nothing you need to configure specifically. ----- Original Message ----- From: "Michael Vasilenko" <acid(a)dg.net.ua> To: "Bo" <boman122(a)yahoo.com> Sent: Friday, March 28, 2003 9:52 AM Subject: Re: [Serusers] ATA 186 Behind NAT > Bo (boman122(a)yahoo.com) wrote: > > Yes. I already tested that. > > Can you please explain, what I must configure in ATA and SER > to make a call from ATA with private IP > > > > ----- Original Message ----- > > From: "Ricardo Villa" <ricvil(a)epm.net.co> > > To: <serusers(a)lists.iptel.org> > > Sent: Friday, March 21, 2003 10:24 AM > > Subject: [Serusers] ATA 186 Behind NAT > > > > > > > Hi, > > > > > > I was reading about the ATA186's ability to detect that it is behind a > > NAT. > > > It requires that: > > > > > > "For the Cisco ATA to automatically detect its presence behind a NAT, the > > > SIP proxy server > > > or remote user agent server must include the "received=" parameter in the > > > Via header in the > > > responses to the Cisco ATA if the proxy detects that the source address > > and > > > port do not match > > > those in the Via header." > > > > > > Does SER support it? > > > > > > > > > Thanks, > > > Ricardo > > > > > > _______________________________________________ > > > Serusers mailing list > > > serusers(a)lists.iptel.org > > > http://lists.iptel.org/mailman/listinfo/serusers > > > > _______________________________________________ > > Serusers mailing list > > serusers(a)lists.iptel.org > > http://lists.iptel.org/mailman/listinfo/serusers > > -- > Michael Vasilenko

2 1

RE: [Serusers] Voicemail Feature
by Sean Watkins 31 Mar '03

31 Mar '03

Hi Where is the voicemail for ser at? Is it presently available? I glanced through the cvs and couldn't find any. Asterisk has decent voicemail.. however its not yet ported to anything else except Linux check out http://www.asteriskpbx.org Sean > -----Original Message----- > From: Jiri Kuthan [mailto:jiri@iptel.org] > Sent: Monday, March 31, 2003 7:59 AM > To: ahmed.abdoulla(a)tedata.net; serusers(a)lists.iptel.org > Subject: Re: [Serusers] Voicemail Feature > > > At 06:11 PM 3/30/2003, Ahmed Abdoulla wrote: > > >Dear Madam/Sir, > > > > > > > >We are a data communication provider in Egypt, and we are > very much interested in deploying SER. > > > >We are particularly interested in having a voicemail feature > as one of our offerings, and we have tried the CVS (8.11) > version but we have noticed (naturally) that it's not stable yet. > > > > > > > >Could you please give us a rough estimate on when you > believe a beta or alpha release will be available? > > I'm little a bit reluctant to do so -- it has always taken > longer than we anticipated > and I would not like to set unrealistic expactations. If you > insist -- without any > guarantee, a *testing* version may be ready to go in two weeks. > > -Jiri > > _______________________________________________ > Serusers mailing list > serusers(a)lists.iptel.org > http://lists.iptel.org/mailman/listinfo/serusers >

3 2

[Serusers] ERROR: bad config file (1 errors)
by alan chen 31 Mar '03

31 Mar '03

Hi, Try to use mysql and auth. But, got the msg "ERROR: bad config file (1 eorros)", when I type "/usr/local/ser". Is anything wrong in my ser.cfg? Thanks, Alan [root@localhost ser]# more ser.cfg # # $Id: ser.cfg,v 1.12 2002/10/21 02:40:06 jiri Exp $ # # simple quick-start config script # # ----------- global configuration parameters ------------------------ debug=3 # debug level (cmd line: -dddddddddd) fork=no log_stderror=no # (cmd line: -E) check_via=no # (cmd. line: -v) dns=no # (cmd. line: -r) rev_dns=no # (cmd. line: -R) port=5060 children=4 fifo="/tmp/ser_fifo" # ------------------ module loading ---------------------------------- # Uncomment this if you want to use SQL database loadmodule "/usr/local/lib/ser/modules/mysql.so" loadmodule "/usr/local/lib/ser/modules/sl.so" loadmodule "/usr/local/lib/ser/modules/tm.so" loadmodule "/usr/local/lib/ser/modules/rr.so" loadmodule "/usr/local/lib/ser/modules/maxfwd.so" loadmodule "/usr/local/lib/ser/modules/usrloc.so" loadmodule "/usr/local/lib/ser/modules/registrar.so" # Uncomment this if you want digest authentication # mysql.so must be loaded ! loadmodule "/usr/local/lib/ser/modules/auth.so" # ----------------- setting module-specific parameters --------------- # -- usrloc params -- # modparam("usrloc", "db_mode", 0) # Uncomment this if you want to use SQL database # for persistent storage and comment the previous line modparam("usrloc", "db_mode", 2) # -- auth params -- # Uncomment if you are using auth module # modparam("auth", "secret", "alsdkhglaksdhfkloiwr") modparam("auth", "calculate_ha1", yes) # # If you set "calculate_ha1" parameter to yes (which true in this config), # uncomment also the following parameter) # modparam("auth", "password_column", "password") # ------------------------- request routing logic ------------------- # main routing logic route{ # initial sanity checks -- messages with # max_forwars==0, or excessively long requests if (!mf_process_maxfwd_header("10")) { sl_send_reply("483","Too Many Hops"); break; }; if (len_gt( max_len )) { sl_send_reply("513", "Message too big"); break; }; # Do strict routing if pre-loaded route headers present rewriteFromRoute(); # if the request is for other domain use UsrLoc # (in case, it does not work, use the following command # with proper names and addresses in it) if (uri==myself) { if (method=="REGISTER") { # Uncomment this if you want to use digest authentication if (!www_authorize("iptel.org", "subscriber")) { www_challenge("iptel.org", "0"); break; }; save("location"); break; }; # native SIP destinations are handled using our USRLOC DB if (!lookup("location")) { sl_send_reply("404", "Not Found"); break; }; }; # forward to current uri now if (!t_relay()) { sl_reply_error(); }; } ===== __________________________________________________ Do you Yahoo!? Yahoo! Platinum - Watch CBS' NCAA March Madness, live on your desktop! http://platinum.yahoo.com

2 1