Thanks Robert. I missed that portion.
On Sun, Apr 28, 2013 at 7:56 PM, Robert Thomas <tho...@gmail.com> wrote: > The description is not entirely correct. > > Delayed Offer: The UAC SDP is relayed on the ACK Message > > INVITE -> > 100 Trying <- > 200OK <- With SDP > ACK -> With SDP > > Early Offer > > INVITE -> With SDP > 100 Trying <- > 200OK <- With SDP > ACK -> > > > The SDP is moved from the ACK to the INVITE, This is why is Early Offer. > > The 200OK should always contain SDP from the UAS. Only Exception might be > when the SDP is sent on a provisional 1XX Message, like a 180 Ringing or > 183 Session Progress. > > In that case is refered to as "Early Media" instead of early offer. > > So saying on delayed offer the SDP is on the 200OK, is incorrect since, > both scenarios have SDP on the 200OK, The difference is the variation > between the INVITE and the ACK. > > This link has further description. > http://www.iplogos.fr/English-Resources/Focus/sip-early-media-early-offer-en.html > > > > On Sun, Apr 28, 2013 at 2:51 AM, CISCO CCIE VOICE > <ccievoic...@gmail.com>wrote: > >> Thank you suresh i will check ths on my pod... >> >> >> On Sun, Apr 28, 2013 at 11:26 AM, Suresh Bhandari <bring...@gmail.com>wrote: >> >>> Content Length 0 means, there will be an OK followed with SDP.... So >>> basically both are same. >>> >>> >>> On Sun, Apr 28, 2013 at 1:56 PM, CISCO CCIE VOICE <ccievoic...@gmail.com >>> > wrote: >>> >>>> Hi Suresh, Thanks for you reply, If SIP 200 OK message has media then >>>> its DELAYED OFFER and SIP INVITE Message with content-length 0 also means >>>> the DELAYED OFFER so which one i have to consider ? >>>> >>>> thanks >>>> >>>> >>>> >>>> On Sun, Apr 28, 2013 at 10:59 AM, Suresh Bhandari >>>> <bring...@gmail.com>wrote: >>>> >>>>> If your SIP Invite message is containing media information, it is an >>>>> early offer. If the response OK message has media, then it is delayed >>>>> offer. >>>>> >>>>> I prefer checking "Content-Length" field to find out if its an Early >>>>> or Delayed offer. Value of 0 mean Delayed offer, non-zero value means it >>>>> is >>>>> including SDP message and so its an early offer. >>>>> >>>>> HTH >>>>> >>>>> >>>>> On Sun, Apr 28, 2013 at 1:15 PM, CISCO CCIE VOICE < >>>>> ccievoic...@gmail.com> wrote: >>>>> >>>>>> HI Experts, >>>>>> >>>>>> Which SIP Message contains Delay Offer and Early Offer message ? i i >>>>>> am bit confuse as some documents says SIP INVITE message contains both >>>>>> Delay and Early Offer and some documents say its SIP 200 OK message >>>>>> >>>>>> >>>>>> Thanks >>>>>> >>>>>> >>>>>> _______________________________________________ >>>>>> For more information regarding industry leading CCIE Lab training, >>>>>> please visit www.ipexpert.com >>>>>> >>>>>> Are you a CCNP or CCIE and looking for a job? Check out >>>>>> www.PlatinumPlacement.com >>>>>> >>>>> >>>>> >>>>> >>>>> -- >>>>> Suresh Bhandari >>>>> >>>> >>>> >>> >>> >>> -- >>> Suresh Bhandari >>> >> >> >> _______________________________________________ >> For more information regarding industry leading CCIE Lab training, please >> visit www.ipexpert.com >> >> Are you a CCNP or CCIE and looking for a job? Check out >> www.PlatinumPlacement.com >> > > > > -- > Robert Thomas Zamora > tho...@gmail.com +50689389544 > http://cr.linkedin.com/pub/robert-thomas-zamora/29/913/8a8 > CCNP, CCNP Voice > -- Suresh Bhandari
_______________________________________________ For more information regarding industry leading CCIE Lab training, please visit www.ipexpert.com Are you a CCNP or CCIE and looking for a job? Check out www.PlatinumPlacement.com
