[SIPForum-discussion] Call SIP witout message Ringing

[qcorba]

Hi,

Called party answered the call by OK and charging may start. Such call is allowed as ringing is not mandatory.

B.R.

從我的 iPad 傳送

Gomez Leopoldo <lgomez at mcmtelecom.com.mx> 於 2013年6月29日 上午2:45 寫道：

> Hi all,
>  
> I have a call completed without the message “Ringing”
>  
> INVITE--à
> ß-----TRYING
> ß-----OK SDP
> ACK----à
> ß------RTP
> RTP---à
> BYE--à
> ß-----OK
>  
> The question is: 
> when I receive the message RTP in this moment the call start counting to be invoiced? If yes, why?
>  
> Regards,
>  
> Luis
>  
>  
>  
>  
>  
>  
> 
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