[Serusers] handling multiple INVITE statements

[Iqbal]

confused :-)

Second BYE I dont get, so thats all good, as for the rejection, the UA 
seems to reject it, i.e I dont get a second call etc, but SER still 
account for it, should ser also reject

Iqbal

Nils Ohlmeier wrote:

>According to RFC3261 the second INVITE (with a different branch value) for the 
>same (early) dialog should be rejected with 482 Loop Detected. So if you are 
>dealing with good UA's it should be no problem. Otherwise the UA is broken.
>
>The second BYE should not appear, as the BYE should be routed according to 
>routing informations within the BYE, and thus not be duplicated because of 
>several ursloc entries. If the INVITE and BYE gets duplicated because of 
>something else then usrloc, you should prevent the duplication for all 
>in-dialog requests (e.g. re-INVITE's too).
>
>  Nils
>
>On Tuesday 16 August 2005 22:23, Iqbal wrote:
>  
>
>>Hi
>>
>>I am getting 2 INVITE per call, which is correct in my setup.
>>
>>I have IP phone ---> ser---> asterisk----ser----ip phone for various setups
>>
>>So when ip phone makes a call, to a internal extension, the call goes
>>out via ser (INVITE 1) into asterisk, which then maps this internal
>>extension to a external number and hence issues a DIAL sip/xxx statement
>>(INVITE 2). All well and good
>>
>>Now should this not give two BYE's anyhow it gives one.
>>
>>The other thing is what to do with the two INVITES, should I be taking
>>the INVITE from asterisk, or from SER, I think the former, BUT the BYE
>>seems to match the tag for asterisk INVITE
>>
>>Iqbal
>>
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>>
>
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