Re: echo

Hi!

Hmm... And if I use STUN with stun4j solve the firewall problem, or not?

Cow

ps: I found some information how work the SIP protocol but I found only 
complex "samples" (sip communicator and applet), with JMF and Jain 
cooperation :|

M. Ranganathan írta:
> Hi!
>
> examples/simplecallsetup should be a good starting point for you. It
> creates a Session description from a String. You can use the SdpFactory
> to create the session description. 
>
> After ACK, the ports are exchanged and the codec information is
> exchanged. The rest is outside the scope of SIP. You have to use an RTP
> library ( i.e. JMF or something like that ) to create the RTP streams.
> It will not work behind a firewall unless you correctly set up rport in
> the outgoing response / request . Check on how rport is used in the SIP
> specification. 
>
> Ranga
>
> On Tue, 2007-01-16 at 13:55 +0100, Háber János wrote:
>   
>> Hi!
>>
>> I'm new in SIP technology. I want to write a simple echo application 
>> (Call a remote sip server user and echo back all reply).
>> I see the shootist example and I have some questions.
>>
>> - How can I create a SessionDescription (I see in the example created by 
>> hand, but this is the only one, and simplest way?)
>> - After the ACK how can I access/send back the RTP stream data?
>> - It's work behind a firewall? (I see I need to open a reply port, I 
>> think it's work with tcp but how?)
>>
>> Thanks, cow
>>
>> ps: If somebody have simple echo example please send to me.
>> _______________________________________________
>> nist-sip mailing list
>> [email protected]
>> http://www-x.antd.nist.gov/mailman/listinfo/nist-sip
>>     
>
>

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