[SIPForum-discussion] sip prack
Rajendran Rajarajan
rajendranr7 at gmail.com
Tue Nov 19 00:39:56 UTC 2013
Hi,
Retransmissions of the reliable provisional response cease when a matching PRACK is received by the UA core.
Try the same scenario after disabling PRACK.
Regards,
Rajendran R
-----Original Message-----
From: "Zuñiga, Guillermo" <Guillermo.Zuniga at cwpanama.com>
Sent: 19-11-2013 03:34
To: "discussion" <discussion at sipforum.org>; "Cordoba, Encarnacion" <Encarnacion.Cordoba at cwpanama.com>
Subject: Re: [SIPForum-discussion] sip prack
Hi fellows.
I would like to understand the following.
I have the scenarios A call B.
In the first invite I am seeing that include the header "Supported: 100rel" and then my GW is sending back a 180Ringing/SDP with "Required: 100rel", and after 7 more 180 my GW is killing the session with 504 Server Time Out.
Question:
1-What means that "Supported: 100rel" in the first invite coming from the Peer?
2-What means that "Required: 100rel" back in the 180 from my GW? What my GW are expecting receive from the Peer? Why is sending 7 more 180 to the Peers?
3-Why then after a timer is killing the session with 504 Server Time out?
4-What could happen is don’t send back from my GW "Required: 100rel" in the 180, session could continue? What should send me Peer in this case?
Thanks a lot for all the feedback.
Thanks
Guillermo
Guillermo Zuniga
Especialista de Soporte Técnico
Gerencia de Soporte Técnico
Tel:+507 263-6671
Cel:+507 6670-0481
Fax:+507 265-3295
Email: Guillermo.Zuniga at cwpanama.com
Disclaimer:
El contenido de este correo es confidencial y puede ser objeto de acciones legales. Es dirigido solo para el o los destinatarios(s) nombrados anteriormente. Si no es mencionado como destinatario, no debe leer, copiar, revelar, reenviar o utilizar el contenido de este mensaje. Si ha recibido este correo por error, por favor notifique al remitente y proceda a borrar el mensaje y archivos adjuntos sin conservar copias.
The information contained in this e-mail is confidential and may also be subject to legal privilege. It is intended only for the recipient(s) named above. If you are not named as a recipient, you must not read, copy, disclose, forward or otherwise use the information contained in this email. If you have received this e-mail in error, please notify the sender immediately by reply e-mail and delete the message and any attachments without retaining any copies.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://sipforum.org/pipermail/discussion/attachments/20131119/9cb5b7b9/attachment-0002.html>
More information about the discussion
mailing list