[SIPForum-discussion] Offer-answer

[Satish Madnurkar]

Hi,

I am new to SIP development. Basically, I am trying to build SIP application which will take care of text, audio and video communication over web browser.

Need some inputs for setting up the development environment as what will be the necessary development steps. I would appreciate if you can give me some inputs on as how to develop.
If possible, kindly provide me some source code as startup application.  I want to build the application in the least cost, hence, would not prefer to go for any licensing server.


Thanks in advance.
Satish





-----Original Message-----
From: discussion-bounces at sipforum.org [mailto:discussion-bounces at sipforum.org] On Behalf Of Ravi Ranjan Sinha
Sent: Thursday, June 30, 2011 3:55 PM
To: mrinal kuila; discussion at sipforum.org
Subject: Re: [SIPForum-discussion] Offer-answer

Hello,

Yes, there should not be any problem. The call flow is correct.

Regards,
Ravi Sinha
________________________________________
From: discussion-bounces at sipforum.org [discussion-bounces at sipforum.org] On Behalf Of mrinal kuila [mrinal.80 at gmail.com]
Sent: Wednesday, June 29, 2011 11:15 AM
To: discussion at sipforum.org
Subject: [SIPForum-discussion] Offer-answer

Hi  Forum,

Coiuld you please answer my below question.
Once offer answer is complete Is it possible to UAS to send more 18x responses?

         UAC               UAS
        |----INVITE------>|
        |                 |
         |<----18x (o)-----| - provisional responses with REQUIRE 100rel
         |                 |
         |-----PRACK(a)--->| - send PRACK with answer
         |<---- 2xx--------|                 |
          |                 |
         |                 |
         |<----18x --------| - >         |                 |
        |-----PRACK------>|
         |<----2xx---------|

              200OK
        <-----------------
         ------------------>
              ACK


Regards
Mrinal

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