sr-users August 2005

sr-users@lists.kamailio.org

220 participants
558 discussions

[Serusers] Simple SIP proxy hardware
by Federico Giannici 12 Aug '05

12 Aug '05

As we do NOT want to provide a central RTP proxy, we are looking for a simple SIP proxy (in hardware) to install in small/medium offices to simplify/bypass all NAT problems. It should: 1) Work as a SIP proxy server: should use a STUN server to bypass all NAT problems (obviously a GOOD implementation of STUN) and forward all SIP requests to a downstream proxy. 2) Work as a registrat proxy: short-circuit all INVITEs between internal UACs (to bypass all hairpin problme of the NAT) and forward all SIP requests to a downstream proxy. ...and optionally... 3) Handle all the authentication requests from the downstream proxy. In this way the configuration of the phones is very simple, only phone number and sip proxy, no STUN server, no hairpin problems, etc... If 3) is implemented, they don't even have to know the username/password used to authenticate (so they cannot make free phone calls from home!). Does something like that exist? I mean, something that costs around a couple hundred of euro??? Thanks. -- ___________________________________________________ __ |- giannici(a)neomedia.it |ederico Giannici http://www.neomedia.it ___________________________________________________

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RE: [Serusers] AVP string concatenation
by Somlai Gábor 12 Aug '05

12 Aug '05

> Hi! > > You can use avp_printf. I do not know if it is also supported in ser. > But I use it with openser. Thanks all of your answers, I've found it in openser, but I have ser. I do not want to migrate because of a simple concatenation. Is not there any solution in ser? Or can I use avpops module of openser in ser? Are they binary or source compatible? Thanks, Gabor Somlai > > regards, > klaus > > Somlai Gábor wrote: > > Hello, > > > > > > > > How should I concatenate the values of two AVPs? > > > > I have not found the answer in the docs and in archive, maybe I'm lame.. > > > > > > > > Thanks, > > > > Gabor Somlai > > > > > > ------------------------------------------------------------------------ > > > > _______________________________________________ > > Serusers mailing list > > serusers(a)lists.iptel.org > > http://lists.iptel.org/mailman/listinfo/serusers

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[Users] openser core cookbook
by Daniel-Constantin Mierla 12 Aug '05

12 Aug '05

Hello, the OpenSER Core Cookbook dokuwiki got a very good shape in meanwhile and looks as an useful reference documentation for OpenSER core. The percentage of the items with text around is quite high now, just several functions and parameters are still empty, fewer and fewer day by day... http://openser.org/dokuwiki/doku.php?id=openser_core_cookbook Thanks to all contributing there. Daniel

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RE: FW: [Serusers] ivr module to manage voice messages
by harry gaillac 12 Aug '05

12 Aug '05

Hello, Thanks I think I 'll do it myself when asterisk 1.2 will be available i will set up it like most of people instead of sems. A few people are interested in sems . I' ll use asterisk as sip media server ser as proxy and rtpproxy (far end nat) . Regards Harry --- jmenjor(a)comcast.net a écrit : > Harry, > > We have a fully functional VoiceMail system that > does what you are looking for but uses Asterisk. > > The cost of installation and configuration is $700. > > Regards, > Patrick J. Menjor > -- > President & CTO > 360freephone Corporation > Tallahassee, Florida. > Phone:1.850.591.8315 > Fax:1.850.656.6975 > > -------------- Forwarded Message: -------------- > From: harry gaillac <gaillacharry(a)yahoo.fr> > To: serusers(a)lists.iptel.org > Cc: sems(a)lists.iptel.org > Subject: [Serusers] ivr module to manage voice > messages > Date: Wed, 10 Aug 2005 15:57:51 +0000 > > Hi all, > > I need help from developpers to write an python > script. > I 'm not really able to write this script however it > > could improve sems features. > > If we store voice messages on a imap server can we > write a python script (imaplib) to manage messages > from > anywhere. > > Can we set a main menu with recorded messages in > order > to read play delete voice messages ? > > phone -------- sems--------- imap server > > Does imaplib can act as a imap client? > > what are the main problems between imap protocol and > > sems? > > For example I want to listen my voices messages so i > > must send login password to imap server via sems > (DTMF) > for authentication. > If I press a key to read messages imap server send > command to sems . > How sems could play voice messages from imap server > ? > > thanks for suggestions > > Harry > > > > > > > > > > > > > > > > ___________________________________________________________________________ > > Appel audio GRATUIT partout dans le monde avec le > nouveau Yahoo! Messenger > Téléchargez cette version sur > http://fr.messenger.yahoo.com > > _______________________________________________ > Serusers mailing list > serusers(a)lists.iptel.org > http://lists.iptel.org/mailman/listinfo/serusers ___________________________________________________________________________ Appel audio GRATUIT partout dans le monde avec le nouveau Yahoo! Messenger Téléchargez cette version sur http://fr.messenger.yahoo.com

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[Serusers] Billing for origination
by Marc Khayat 12 Aug '05

12 Aug '05

Hi all, I'm using SER as originating SIP server, and putting all the logs in a MySQL table. Since the international calls are as 00x or 00xx or 00xxx (no specific length), is there a nice way to do the billing based on the country code? Thanks, Marc

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Re: [Users] rport in via header
by Daniel-Constantin Mierla 12 Aug '05

12 Aug '05

Hello, I understood the issue you have. I just added on CVS a new function ( add_local_rport() ) that appends the rport parameter to the via header generated by OpenSER. You have to call this function for any SIP request that your proxy will forward and you want to have the rport parameter. The pserver cvs may take some time to synchronize (sourceforge policy). Please let me know if it works. Daniel On 08/12/05 08:10, ranveer kunal wrote: >correction : > >On 8/12/05, ranveer kunal <ranveerkunal(a)gmail.com> wrote: > > >>hi daniel, >> no basically gateway is not appending any via header, its >>acting as NAT. >>ok i'll explain the scenario onece again. >> >>proxy is behind the gateway, so any packet going out of proxy is >>natted out using gateway's ip (ip2) and port (port2), the via header >>is appended by the proxy, it has ip1:port1. ok. >>Now when next hop proxy gets the packet, it will reply to the ip from >> >> > >***********> which it got the packet ie ip1 and the port from top via >header that >***********> is port2. >which it got the packet ie ip2 and the port from top via header that >is port1. > > > > >>Ithink now you'll get the real picture. >> >>Regards, >>Ranveer. >> >> >>On 8/12/05, Daniel-Constantin Mierla <daniel(a)voice-system.ro> wrote: >> >> >>>Hello, >>> >>>so actually the gateway is a NAT, and it is not SIP aware at all. From >>>the picture I got that the gateway adds also a via header with >>>ip2:port2. In this case, I understand your question, I will double check >>>how via header is built inside openser and come back with answer during >>>the day (too late now). >>> >>>Daniel >>> >>>On 08/11/05 21:06, ranveer kunal wrote: >>> >>> >>> >>>>hi, >>>> RFC 3581 says if the the transport layer is UDP, the reply should >>>>be sent to ip of ip packet received and the port shud be taken from >>>>the via header, untill unless rport is there. >>>> >>>>since in via header port is port1(it was written by proxy). next hop >>>>proxy sends the reply to ip2:port1. >>>> >>>>I have figured a work around, i'll force gateway to send the packet >>>> >>>> >>>>from port=port1. Thus the problem will be solved. >>> >>> >>>>Thanks. >>>> >>>>Regards, >>>>Ranveer. >>>> >>>> >>>>On 8/11/05, Daniel-Constantin Mierla <daniel(a)voice-system.ro> wrote: >>>> >>>> >>>> >>>> >>>>>Hello, >>>>> >>>>>On 08/11/05 04:33, ranveer kunal wrote: >>>>> >>>>> >>>>> >>>>> >>>>> >>>>>>hey daniel, >>>>>> The packet from the ser proxy is statelessly forwarded >>>>>>by a gateway that is inline with proxy, now i want next hop proxy to >>>>>>reply on the port of the gateway rather than port of proxy. that is y >>>>>>i need proxy to send rport. >>>>>> >>>>>>proxy--------------gateway--------------next hop proxy >>>>>> >>>>>>proxy -> ip1:port1-> gateway -> ip2:port2 -> next hop proxy >>>>>>next hop proxy -> replies to ip2:port1 (hybrid) -> screws my setup >>>>>> >>>>>> >>>>>> >>>>>> >>>>>> >>>>>> >>>>>the next hop proxy is broken, why does it reply to ip2:port1? It should >>>>>reply to source_ip and source_port of the received request. The proxy is >>>>>not aware at all about ip2:port2 used by gateway. >>>>> >>>>>Daniel >>>>> >>>>> >>>>> >>>>> >>>>> >>>>>>can you suggest me some way to overcome this. >>>>>> >>>>>>Regards, >>>>>>Ranveer. >>>>>> >>>>>>On 8/11/05, Daniel-Constantin Mierla <daniel(a)voice-system.ro> wrote: >>>>>> >>>>>> >>>>>> >>>>>> >>>>>> >>>>>> >>>>>>>Hello, >>>>>>> >>>>>>>On 08/10/05 21:10, ranveer kunal wrote: >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>>>hi daniel, >>>>>>>> as far as i have explored force_rport(), places the rport >>>>>>>>parameter in the topmost via header and not in its own via header. am >>>>>>>>i right ? >>>>>>>> >>>>>>>>example : >>>>>>>> >>>>>>>>UAC -> (via1:via2:via3)proxy(force_rport)->(via1:via2:via3,rport:via4)next proxy >>>>>>>> >>>>>>>>i want this : >>>>>>>>UAC -> (via1:via2:via3)proxy(force_rport)->(via1:via2:via3:via4,rport)next proxy >>>>>>>> >>>>>>>>Please clarify it ? >>>>>>>> >>>>>>>> >>>>>>>> >>>>>>>> >>>>>>>> >>>>>>>> >>>>>>>> >>>>>>>> >>>>>>>yes, it is like that. And this is how it is supposed to be, according to >>>>>>>RFC3581. Why do you need it in proxy's via? The proxy will look at the >>>>>>>second via to get the destination address for reply. >>>>>>> >>>>>>>Daniel >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>>>Regards, >>>>>>>>Ranveer. >>>>>>>> >>>>>>>>On 8/10/05, Daniel-Constantin Mierla <daniel(a)voice-system.ro> wrote: >>>>>>>> >>>>>>>> >>>>>>>> >>>>>>>> >>>>>>>> >>>>>>>> >>>>>>>> >>>>>>>> >>>>>>>>>Hello, >>>>>>>>> >>>>>>>>>you have to use force_rport() in the configuration file for the request >>>>>>>>>you want rport parameter in VIA. >>>>>>>>> >>>>>>>>>Daniel >>>>>>>>> >>>>>>>>> >>>>>>>>>On 08/10/05 20:44, ranveer kunal wrote: >>>>>>>>> >>>>>>>>> >>>>>>>>> >>>>>>>>> >>>>>>>>> >>>>>>>>> >>>>>>>>> >>>>>>>>> >>>>>>>>> >>>>>>>>>>hi all, >>>>>>>>>> Is there a way to configure openser so that it sends rport in >>>>>>>>>>via header ? Actually th packet from server is reverse natted through >>>>>>>>>>another system using any random port, i want it the reply to come on >>>>>>>>>>the same port . thanks .... >>>>>>>>>> >>>>>>>>>>Regards, >>>>>>>>>>Ranveer. >>>>>>>>>> >>>>>>>>>> >>>>>>>>>> >>>>>>>>>> >>>>>>>>>> >>>>>>>>>> >>>>>>>>>> >>>>>>>>>> >>>>>>>>>> >>>>>>>>>> >>>>>>>> >>>>>>>> >>>>>>>> >>>>>>>> >>>>>> >>>>>> >>>>>> >>>>>> >>>> >>>> >>>> >>>> >>-- >>Memories : They bring Diamonds and Rust >> >> >> > > > >

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[Serusers] Trusted Table Format
by sermail 12 Aug '05

12 Aug '05

Dear All, I'm getting confused, what is the contents of the trusted table is I am using the allow_trusted function and want to accept INVITES from a particular IP address ? Many Thanks Simon

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[Serusers] Distributing "OSP enable SER" binary file w/ source code
by vmathur＠transnexus.com 12 Aug '05

12 Aug '05

Dear All, I have recently implemented OSP w/ SER. OSP is an ETSI defined protocol, which I am using for ceneralised routing, and security of my inter-domain calls. The problem, however, is that the build process is a little lengthy. I want to contribute my implementation to this group so that anyone who is struggling with SER routing configurations or Radius authentication issues may benefit from it. I was, thus, wondering if we can have a binary file of the OSP enabled SER, that can be distributed with the source code. Does anyone have an opinion on this? Also, for anyone who wants to check-out this implementation, I can provide more details. Thanks, Vikrant

2 1

[Serusers] Any comments about WellTech FXO/FXS device
by Sebastian Milioto 12 Aug '05

12 Aug '05

We are an ISP about to deploy an VoIP enterprise solution for about 50 costumers. We are looking for fxo/fxs, fxo and fxs devices. We know about Sipura, Welltech, Cisco, Patton. Which one do you recommend taking into account : 1. Easy installation and configuration 2. Performance 3. Durability 4. Simultaneous calls, etc May be you could reccomend another brand also. Thank you very much for your time Sebastian Milioto Telecommunication Engineer -------------------------------- IM: sebamilioto(a)hotmail.com Mobile: +549-3571-15540598 e-mail: smilioto(a)GMAIL.com --------------------------------

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[Users] RR module changes
by Bogdan-Andrei Iancu 12 Aug '05

12 Aug '05

Hi everybody, I made some updates to the RR module on both users and developer sides: for users: new is_direction() function; more docs about dialog support via RR module for developers: RR API added; RR callbacks added; docs describing both of these (with some examples). For more and more info, please refer to the online doc: http://www.openser.org/docs/modules/0.10.x/rr.html The RR API and callbacks are not 100% tested, it's on the way - they will be used by the UAC module (for FROM/TO mangling) and by other future module which will need dialog support. regards, Bogdan

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sr-users August 2005