Hi Manoj, As per my knowledge, yes. It's mandatory to support the official ptimes for each coder your implementation supports.
Regards Paulo Borelli -------------------------------------------------- From: "Manoj Priyankara [TG]" <[email protected]> Sent: Wednesday, November 25, 2009 12:49 PM To: "Paulo Borelli" <[email protected]>; <[email protected]>; <[email protected]> Subject: Re: [Sip-implementors] ptime > Thanks paulo/sunil. > I also agree with paulo. When i tested two end points having different > ptimes, they worked fine. > According to paulo's comment, there's no negotiation of ptime and two end > points can work with diffirent ptimes in the same session . Is that right? > br, > Manoj > --- original message --- > From: "Paulo Borelli" <[email protected]> > Subject: Re: [Sip-implementors] ptime > Date: 26th November 2009 > Time: 6:39:08 pm > > Hi, > > ptime does not need to match the other side. The remote side must accept > what is offered. ptime may be assymetrical between the two media > endpoints. > One may send G.729 @ 20 ms while the other sends G.729 @ 40 ms. Both must > be > able to decode the flow from the other side. When you configure a media > endpoint to "work" with "x" ms, you are really telling it to *generate* at > "x" ms. But it should be able to accept/decode different ptimes in the > receiving side. > > Regards > Paulo Borelli > > -------------------------------------------------- > From: <[email protected]> > Sent: Thursday, November 26, 2009 11:29 AM > To: <[email protected]>; <[email protected]> > Subject: Re: [Sip-implementors] ptime > >> Hi, >> >> Ptime or Packetization time is useful for audio sessions. As per my >> understanding, it should not affect signaling. However if two end points >> settle on different packetization time, then actual voice call would >> have a problem. >> >> ptime tells amount of media which can be encapsulated in each packet. >> Difference in ptime would result in breakage of voice and the audio call >> established will not be clear. >> >> Regards, >> Sunil >> >> -----Original Message----- >> From: [email protected] >> [mailto:[email protected]] On Behalf Of >> Manoj Priyankara [TG] >> Sent: Thursday, November 26, 2009 11:46 AM >> To: [email protected] >> Subject: [Sip-implementors] ptime >> >> Dear All, >> >> Can anyone explain how ptime affects in call setups? >> Should all the UA's include ptime in the SDP of the INVITE? >> If it is included, and does not match with the packet time of the other >> party what would happen? >> >> Little information could be found in RFC 2327. Pls help >> >> Thanks >> BR, >> Manoj >> >> >> _______________________________________________ >> Sip-implementors mailing list >> [email protected] >> https://lists.cs.columbia.edu/cucslists/listinfo/sip-implementors >> >> Please do not print this email unless it is absolutely necessary. >> >> 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 proprietary, confidential or privileged information. If you >> are not the intended recipient, you should not disseminate, distribute or >> copy this e-mail. Please notify the sender immediately and destroy all >> copies of this message and any attachments. >> >> WARNING: Computer viruses can be transmitted via email. The recipient >> should check this email and any attachments for the presence of viruses. >> The company accepts no liability for any damage caused by any virus >> transmitted by this email. >> >> www.wipro.com >> >> _______________________________________________ >> Sip-implementors mailing list >> [email protected] >> https://lists.cs.columbia.edu/cucslists/listinfo/sip-implementors >> > _______________________________________________ Sip-implementors mailing list [email protected] https://lists.cs.columbia.edu/cucslists/listinfo/sip-implementors
