sr-users April 2004

sr-users@lists.kamailio.org

138 participants
266 discussions

by Jason Penton

Hi All I have a question about the CORRECT operation of UA when making a call via a forking proxy: Lets say UA1 calls 7000(a)sip.com and user 7000(a)sip.com is available at UA2 and UA3 i.e. the Proxy forks the request. UA1 Forking UA2 UA3 Proxxy 1 |------INVITE---------->| | | 2 | |--------INVITE-------------->| | 3 | |---------------------------INVITE------------->| 4 | |<---RINGING(totag=1234)------| | 5 |<---RINGING(totag=1234)| | | 6 | |<------------------RINGING(totag=5768)---------| 7 |<---RINGING(totag=5678)| | | | | | | | | | | NOW UA3 WILL ANSWER | |<----------------200 OK (totag=5678)-----------| 8 |<-200 OK (totag=5678)--| | | 9 |---ACK (totag=1234)--->| | | 10 | |------------------ACK (totag=1234)------------>| AT THIS STAGE UA 3 IGNORES THE ACK AS IT DOES NOT CORRESPOND TO ORIGINATING 200 OK AND THE CALL IS NOT SETUP * UA1 is using the to-tag of the first 180 RINGING it received (frame 5) no matter what the to-tag in the 200 OK is * My question here is: who is in the wrong???? The proxy or UA1? * Should the proxy change the to-tag of the ACK before forewarding it to UA3??? Any help/guidance would be much appreciated Jason Penton Rhodes University Grahamstown South Africa

20 years, 3 months

[Serusers] Problems with serweb

by Roberto Hiribarne Guedes

Hi, I configured serweb very well, but when I can't login any valid user ... Neither in admin pages ... It says its an invalid user .. The register pages works until the confirmation ... With this error ... ------- Warning: fopen("/tmp/ser_fifo", "w") - Permission denied in /var/www/html/functions.php on line 206 fie.uclv.edu.cu User Management sorry -- cannot open write fifo ------- My /etc/init.d/ser script doesn't work at boot time ... So a run it by hand ... Do I have to run it as another user .. (a ser user for example ?) My apache is running under the apache user ... What abaut the permissions of /tmp/ser_fifo ... Thanks ... Robert

20 years, 3 months

[Serusers] RE: [Sip-implementors] FW: Forking Proxy

by sreeram.kanumuri＠wipro.com

Hi Jason Penton, >>* My question here is: who is in the wrong???? The proxy or UA1? UA1 is wrong. >>* Should the proxy change the to-tag of the ACK before forewarding it to UA3??? Proxy should just Forward the message .Proxy should not change the to-tag. Thanking you, Regards, Sreeram Phone: 8520408 Ex:3208 -----Original Message----- From: sip-implementors-bounces(a)cs.columbia.edu [mailto:sip-implementors-bounces@cs.columbia.edu] On Behalf Of Jason Penton Sent: Thursday, April 01, 2004 1:29 PM To: sip-implementors(a)cs.columbia.edu Cc: serdev(a)lists.iptel.org; serusers(a)lists.iptel.org Subject: [Sip-implementors] FW: Forking Proxy Hi All Sorry about the last post - I have attached the call flow as an image this time :-) I have a question about the CORRECT operation of UA when making a call via a forking proxy: (see attached image for call flow) Lets say UA1 calls 7000(a)sip.com and user 7000(a)sip.com is available at UA2 and UA3 i.e. the Proxy forks the request. * UA1 is using the to-tag of the first 180 RINGING it received (frame 5) no matter what the to-tag in the 200 OK is * My question here is: who is in the wrong???? The proxy or UA1? * Should the proxy change the to-tag of the ACK before forewarding it to UA3??? Jason Penton Rhodes University Grahamstown South Africa Confidentiality Notice The information contained in this electronic message and any attachments to this message are intended for the exclusive use of the addressee(s) and may contain confidential or privileged information. If you are not the intended recipient, please notify the sender at Wipro or Mailadmin(a)wipro.com immediately and destroy all copies of this message and any attachments.

20 years, 3 months

RE: [Serusers] msn messenger is not registering with ser

by Ralph.Wabel＠swisscom.com

Hi What version of MSN are you using? Because MSN Messenger 5.0 and above does not work with SIP -----Original Message----- From: serusers-bounces(a)iptel.org [mailto:serusers-bounces@lists.iptel.org] On Behalf Of Ansari, Fahriz Sent: Mittwoch, 31. März 2004 20:24 To: serusers(a)lists.iptel.org Subject: [Serusers] msn messenger is not registering with ser Hi, I have ser working fine with all other products with authentication. I have problem with MSN messenger. It is sending request to ser more than about 15 times but ser is not registering. SER is even not responds with any type of error message. Can somebody help me please? Thanks, Fahriz Aqeel Ansari

20 years, 3 months

[Serusers] Removing to-tags

by Jason Penton

Hi All Is there a way/hack to remove to-tags from incoming '180 Ringing' responses before forwarding them to the UAC. My reason for doing this is that one of the UACs I am using seems to screw the to-tag up when SER acts as a forking proxy. i.e. the calling UA sends an ACK for the 200OK with the to-tag equal to the to-tag received from the FIRST '180 RINGING' received. The net result is that the ACK is sent with a different to-tag than the to-tag of the received 200 OK. The answering UA therefore does not accept the ACK and the call is not completed. Any help/guidance would be much appreciated Jason Penton Rhodes University Grahamstown South Africa

20 years, 3 months

[Serusers] Asking for advice

by Roberto Hiribarne Guedes

Hi, I'm new in IP Telephony world and I began from the beginning using SER ... I have found it very nice, simple to configure/use ... Althoug I've had some problems in redhat9. Ok, some days ago I was talking to a friend of mine who was investigating on VoIP and tall me about VOCAL from Vovida.org and Asterisk ... I have read something about Asterisk in this mailing list but I hadn't know of VOCAL ... Could any one tell me about the open source SIP platforms in the todays world ? Their differences ... Etc ... And also the Oparating Systems usually used for this ... (I work with RedHat Linux 9) I'm working for a really good solution for my University VoIP platform ... Thanks, Robert.

20 years, 3 months

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sr-users April 2004