sr-users August 2005

sr-users@lists.kamailio.org

220 participants
558 discussions

[Users] Re: Re: Re: Re: MediaProxy & PSTN GW
by Ozan Blotter 22 Aug '05

22 Aug '05

Dear Klaus, As i get ideas from three people here i should close this subject. Codec i use is g729 (it supports g711 too) as it comes default with Zyxel Prestige 2002, even i have a special firmware (engineered one) for this product so it supports g723 too :P, i think problem is high latencies in ADSL or CableNet services here, even they're 512/128, 1024/256, 2048/512 in ADSL and 512/256, 1024/512, 2048/1024 in CableNet... Anyway i will try to find another solution and thanks for your replies... Ozan... ------------------------------ Message: 3 Date: Sat, 20 Aug 2005 23:03:59 +0200 From: Klaus Darilion <klaus.mailinglists(a)pernau.at> Subject: Re: [Users] Re: Re: MediaProxy & PSTN GW To: cosmocid(a)ispro.net.tr Cc: users(a)openser.org Message-ID: <43079ABF.9030405(a)pernau.at> Content-Type: text/plain; charset=us-ascii; format=flowed That does not help you - inserting another hop can not compensate the bottleneck between the UAs and the Internet (the ADSL connection). BTW: 600km is not far away. Which Codec you you use? Try low-babdwidth codecs like G729, ilbc, GSM and G723 klaus Ozan Blotter wrote: > Dear Iqbal and Bogdan, > > That is exactly what i need to improve QoS, because the UAs ADSL > connection is not fast enough, 512/128k in general, OpenSER and UA's are > located in same city but PSTN GW is nearly 600 km (350 miles nearly) away > from this point. I thought since OpenSER is on a good connection (1Mbit > Fiber) and can relay to PSTN faster then UA's themselves. > > Thanks, > Ozan > > Also in terms of ping times how far is the PSTN gateway, as Bogdan said, > media proxy will add even more delay, as for sending pstn via > mediaproxy, you could do all yourprocessing, and once ser detects that > call must goto PSTN, then do all the NAT checking ...this is a > oversimplified view... > > Iqbal > > Bogdan-Andrei Iancu wrote: > > >>Hi Ozan, >> >>so, if I get it right, you have a PSTN gw locate far away from the >>UAs...and instead of letting the media traffic to do directly between >>GW and UAs, you want to insert in the middle a RTP relay (mediaproxy) >>in order to improve the QoS, right? >>If so, I would say this will not help you - having a media relay on >>your media path leads to QoS degradation due additional delays.... >> >>If you still want to go for it....I will take a look on tour script. >> >>regards, >>bogdan >> >>Ozan Blotter wrote: >> >> >>>Dear List, >>> >>>At below config. i setted up OpenSER on Public IP and PSTN Gateway is >>>again on another Public IP. I use Zyxel Prestige Series 660-HW ADSL >>>modems on both client side and note that they have SIP ALG, also i've >>>completed port forwarding in each modem, so SIP2SIP call happens >>>(voice traffic goes from UA to UA) without need of anything extra as >>>STUN or RTP RELAY. But since those are very away from each other if a >>>UA needs to call PSTN the voice traffic flows from UA to PSTN and >>>that lowers QoS :( >>> >>>I would like to activate MediaProxy again but just for one case which >>>is PSTN, so whenever a UA needs to call PSTN the voice traffic flows >>>like : >>> >>>UA (ATA) >>> OpenSER + MediaProxy >>> PSTN >>> >>>How can i setup this like above without touching SIP2SIP calls >>>between UA's... >>>or adding the lines beginning with # these to my existing config is >>>enough ? >>> >>>Thanks, >>>Ozan Blotter

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[Users] Re: Re: MediaProxy & PSTN GW
by Ozan Blotter 22 Aug '05

22 Aug '05

Dear Iqbal and Bogdan, That is exactly what i need to improve QoS, because the UAs ADSL connection is not fast enough, 512/128k in general, OpenSER and UA's are located in same city but PSTN GW is nearly 600 km (350 miles nearly) away from this point. I thought since OpenSER is on a good connection (1Mbit Fiber) and can relay to PSTN faster then UA's themselves. Thanks, Ozan Also in terms of ping times how far is the PSTN gateway, as Bogdan said, media proxy will add even more delay, as for sending pstn via mediaproxy, you could do all yourprocessing, and once ser detects that call must goto PSTN, then do all the NAT checking ...this is a oversimplified view... Iqbal Bogdan-Andrei Iancu wrote: > Hi Ozan, > > so, if I get it right, you have a PSTN gw locate far away from the > UAs...and instead of letting the media traffic to do directly between > GW and UAs, you want to insert in the middle a RTP relay (mediaproxy) > in order to improve the QoS, right? > If so, I would say this will not help you - having a media relay on > your media path leads to QoS degradation due additional delays.... > > If you still want to go for it....I will take a look on tour script. > > regards, > bogdan > > Ozan Blotter wrote: > >> Dear List, >> >> At below config. i setted up OpenSER on Public IP and PSTN Gateway is >> again on another Public IP. I use Zyxel Prestige Series 660-HW ADSL >> modems on both client side and note that they have SIP ALG, also i've >> completed port forwarding in each modem, so SIP2SIP call happens >> (voice traffic goes from UA to UA) without need of anything extra as >> STUN or RTP RELAY. But since those are very away from each other if a >> UA needs to call PSTN the voice traffic flows from UA to PSTN and >> that lowers QoS :( >> >> I would like to activate MediaProxy again but just for one case which >> is PSTN, so whenever a UA needs to call PSTN the voice traffic flows >> like : >> >> UA (ATA) >>> OpenSER + MediaProxy >>> PSTN >> >> How can i setup this like above without touching SIP2SIP calls >> between UA's... >> or adding the lines beginning with # these to my existing config is >> enough ? >> >> Thanks, >> Ozan Blotter > > > > > _______________________________________________ > Users mailing list > Users(a)openser.org > http://openser.org/cgi-bin/mailman/listinfo/users > > . >

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Re: [Users] SDP
by Bogdan-Andrei Iancu 22 Aug '05

22 Aug '05

Hi George, OpenSER is a signalling SIP proxy and it has very few implications over the SDP (media) part - only regarding NAT traversal. the SDP info is mostly used end-to-end (only by user-agents) regards, Bogdan ggtel wrote: >Hello, > >Any use of SDP media attribute in conjunction with SIP /SER ? >I would appreciate any insight! > >George > > > > > > > >___________________________________________________________________________ >Appel audio GRATUIT partout dans le monde avec le nouveau Yahoo! Messenger >Téléchargez cette version sur http://fr.messenger.yahoo.com > > >_______________________________________________ >Users mailing list >Users(a)openser.org >http://openser.org/cgi-bin/mailman/listinfo/users > > >

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Re:[Serusers] Centralized routing for managing multiple SER proxies
by Samuel Osorio Calvo 22 Aug '05

22 Aug '05

Take a look at RFC3263 Locating SIP Servers.The idea is to use DNS to locate the right server. If you configure your DNS to serve your different SER proxies you just have to use t_relay and the request will be forwarded to the right destination. Hope it helps. Samuel Unclassified. >>> <vmathur(a)transnexus.com> 08/19/05 06:20PM >>> Hi Ashutosh, Thanks for your response. The readme file of mediaproxy talks about load balancing the RTP streams across multiple proxies. Does the signaling also follow the same path as the media (for the same call). Also, The readme file of the mediaproxy says that: "Once it has determined which domain to use to obtain the list of available proxy servers, it will make a DNS lookup for the following SRV records: _mediaproxy._tcp.selected.domain.name" Does this mean that the DNS lookup serves as the routing mechanism for the call? Also, the document says: "However it should be fairly easy to implement another dispatcher that uses a different mean to determine the proxy server (like using a database mapping), or even to distribute the traffic by other means than SIP domain name." I guess that this means that I could use a 3rd party routing engine to route the calls. Is that correct? If so, is there an interface in the dispatcher that I could use to make the dispatcher talk to my routing DB and not do a DNS lookup. Thanks, Vikrant

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Re: [Users] Bus error
by Samuel Osorio Calvo 22 Aug '05

22 Aug '05

Try to compile SER without any optimization parameter set. Bus error usually refers to a bad alignemnt and usually the optimization paramters of the compiler sometimes do not properly behave with the alignemnt. Hope it helps. Samuel. Unclassified. >>> Marc Haisenko <haisenko(a)be-ok.com> 08/17/05 06:07PM >>> On Tuesday 16 August 2005 22:53, Andréa Giordanna wrote: > Hello, does anybody here already have this problem > while starting openser? > And, what does this Aliases exactly means? > > [...] > > Bus error > > Thanks, > Andrea Giordanna "Bus error" is a very critical OS error message, it has nothing to do with OpenSER. You either have faulty hardware or hit a kernel bug ;-) C'ya, Marc -- Marc Haisenko Linux Solutions Be O.K. service group GmbH Rüdesheimer Straße 7 D-80686 München Tel: +49 (0)89 - 548 43 33 21 Fax: +49 (0)89 - 548 43 33 29 e-mail: haisenko(a)be-ok.com http://www.be-ok.com _______________________________________________ Users mailing list Users(a)openser.org http://openser.org/cgi-bin/mailman/listinfo/users

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RE: [Serusers] Serweb
by Marc Khayat 22 Aug '05

22 Aug '05

Anybody got the Log.php file from serweb (ser-0.9.3), coz it seems like it's missing from my package. Thx, Marc -----Original Message----- From: serusers-bounces(a)iptel.org [mailto:serusers-bounces@lists.iptel.org] On Behalf Of Marc Khayat Sent: Friday, August 19, 2005 11:25 AM To: Karel Kozlik Cc: serusers(a)lists.iptel.org Subject: RE: [Serusers] Serweb /tmp/ser_fifo/ is wrong since it'll be looking for a folder... Marc -----Original Message----- From: serusers-bounces(a)iptel.org [mailto:serusers-bounces@lists.iptel.org] On Behalf Of Marc Khayat Sent: Friday, August 19, 2005 11:03 AM To: Karel Kozlik Cc: serusers(a)lists.iptel.org Subject: RE: [Serusers] Serweb Hi Karel, Thx for bearing with me :) In config_paths.php, I changed it from "/tmp/ser_fifo" to "tmp/ser_fifo/" The errors at the top disappeared but I'm still getting the "FIFO not running or bad path to it" message. Is it wrong to put "tmp/ser_fifo/"? knowing that in ser.cfg, it's /tmp/ser_fifo Thanks again, Marc -----Original Message----- From: Karel Kozlik [mailto:karel@iptel.org] Sent: Friday, August 19, 2005 9:28 AM To: Marc Khayat Cc: serusers(a)lists.iptel.org Subject: Re: [Serusers] Serweb sorry Marc, haven't idea what may be wrong. Please check again setting of fifo in serweb. Check variable $config->fifo_server in config_paths.php. It's value must be '/tmp/ser_fifo'. Try enable logging in serweb ($config->enable_loging = true in config.php), set log level to debug ($config->log_level = "PEAR_LOG_DEBUG") and examine the log file if there are some messages refered fifo. Also try search for string 'fifo_server' throught log files (or whole serweb) and check if it's value isn't changed somewhere. You should find this string only in file config_paths.php (one times) and in file functions.php (four times). Karel Marc Khayat napsal(a): > Hi Karel, > I already tried this one by manually changing the permissions on > ser_fifo to 666; I just tried adding fifo_mode=0666 to ser.cfg, but > still the same problem. > > Marc > -----Original Message----- > From: Karel Kozlik [mailto:karel@iptel.org] > Sent: Friday, August 19, 2005 8:21 AM > To: Marc Khayat > Cc: serusers(a)lists.iptel.org > Subject: Re: [Serusers] Serweb > > Hi, > try add: > fifo_mode=0666 > > to your ser.cfg > > Karel > > Marc Khayat napsal(a): > >>/tmp/ser_fifo exists, and is pipe type >>User running Apache is "apache". Owner of ser_fifo is User: "root", >>Group: "root". >>I joined user "apache" to group "root", same. >> >>I created group "ser" and joined "root" "apache" to that group, and >>added fifo_group=ser to the ser.cfg, but still same problem: >> >>Warning: filetype(): Lstat failed for (null) (errno=13 - Permission >>denied) in /var/www/html/serweb/html/functions.php on line 306 >> >>Warning: Cannot modify header information - headers already sent by >>(output started at /var/www/html/serweb/html/functions.php:306) in >>/var/www/html/serweb/html/page.php on line 35 >> >> >>Thanks, >> >>Marc >> >>-----Original Message----- >>From: Karel Kozlik [mailto:karel@iptel.org] >>Sent: Thursday, August 18, 2005 1:38 PM >>To: Marc Khayat >>Cc: serusers(a)lists.iptel.org >>Subject: Re: [Serusers] Serweb >> >>Hello, >>please check if file /tmp/ser_fifo exists and if it's type is pipe. > > Also > >>check rights - if user under which apache is running have access to > > read > >>and write to this file. >> >>Karel >> >>Marc Khayat napsal(a): >> >> >>>The domain thing is working, but problem 2 is still bugging me. >>>Help anyone? >>> >>>Marc >>> >>>-----Original Message----- >>>From: serusers-bounces(a)iptel.org [mailto:serusers-bounces@lists.iptel.org] >> >>On >> >> >>>Behalf Of Marc Khayat >>>Sent: Thursday, August 18, 2005 11:15 AM >>>To: serusers(a)lists.iptel.org >>>Subject: RE: [Serusers] Serweb >>> >>>Never mind guys... it's working! >>> >>>Marc >>>-----Original Message----- >>>From: serusers-bounces(a)iptel.org [mailto:serusers-bounces@lists.iptel.org] >> >>On >> >> >>>Behalf Of Marc Khayat >>>Sent: Thursday, August 18, 2005 10:53 AM >>>To: serusers(a)lists.iptel.org >>>Subject: [Serusers] Serweb >>> >>>Hi all, >>>I'm using SER-0.9.3 and its serweb version. >>>I have 2 problems with it: >>>1- On the login page, when I enter the username, it automatically >>>completes it with the FQDN, while I need only the domain name; i.e. I >>>login to http://ser.xyz.com, I enter the username aloha, it's >> >>completed >> >> >>>as aloha(a)ser.xyz.com while I need it as aloha(a)xyz.com. Currently, I'm >>>writing in manually >>> >>>2- When I login, I'm getting an error on the first page only as "FIFO >>>not running or bad path to it". The path to it (in config_paths.php >> >>file >> >> >>>is /tmp/ser_fifo, which is correct), and when I enter the command >> >>serctl >> >> >>>monitor, the counter isn't constant, and same path. >>> >>>Can anyone help me plz, >>> >>>Thanks, >>> >>>Marc >>> >>>_______________________________________________ >>>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

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[Serusers] Error during accounting - val2str()
by Carlo 22 Aug '05

22 Aug '05

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[Serusers] STUN and public ip address change
by Kevin Brennan 22 Aug '05

22 Aug '05

When testing with X-lite and GPX-2000 behind NAT using only STUN for NAT traversal we loose registration and calls fail if the public ip address changes i.e. if the ISP is assigning with DHCP. The reason it fails is because the UA's fail to recognise the change in public IP and continue to use the old IP. Just wondering if anybody has suggestions to avoid this (other than use an RTP proxy) and/or experiences with UA's which have a STUN implementation which solves this. Br /Kev/

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[Serusers] urgent help
by Abdul Lateef 21 Aug '05

21 Aug '05

Hi, Does anyone know how to configure RTC Client to register with ser. i was doing in VB6 but i am not able to register. the RTC is always sending SUBSCRIBE CSeq not REGISTER. or is there any possibilite to use SUBSCRIBE instead of REGISTER? Please let me know if someone got successfull configuration with RTC Client. Regards, Yours, Abdul Lateef Computer Programmer HATIF COM Mob: +974 - 5405022 Tel: +974 - 4883068 ICQ: 276994704 YM!: abdul_zu Fax: +974 - 4883063 Doha Qatar http://www.hatif.com ____________________________________________________ Start your day with Yahoo! - make it your home page http://www.yahoo.com/r/hs

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[Serusers] LCR Module - Does it support PSTN prefix digits?
by Paul Hazlett 21 Aug '05

21 Aug '05

Hi All. We have multiple PSTN gateways in our network. Some are our own and some are owned and operated by 3rd parties. We are also use ser-0.9 stable with the LCR module for call routing. Some of these 3rd party PSTN gateways require us to prefix accounting digits to the R-URI before sending the call to their network. So my questions is this; does the LCR module support a scenerio whereby it can prefix digits for specific PSTN gateways? For example, suppose I have 3 PSTN gateways. The the second gateway requires prefixed digits on the R-URI. When the fist GW fails, the LCR module would prefix the required digits and then send to the send GW. If the second GW fails, then the LCR module would remove the previously prefixed digits and then send the call to the 3rd GW. Is this possible is the LCR module Juha provides for ser-0.9 stable? If not, is it possible with the LCR module in the unstable CVS HEAD? Regards, Paul

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sr-users August 2005