[SIPForum-discussion] SIP billing confusion

[shibli ahamed]

please consider this sip call flow:


 


A                                        B
01        INVITE
     ----------------------------------->
02       100 TRYING
    <------------------------------------
03       180 Ringing
    <------------------------------------
04       200OK With SDP
   <----------------------------------------
05       ACK
   ------------------------------------------>
06             BYE
   <------------------------------------------
07           200 OK
   ------------------------------------------->
 
 
Query:
1. Is there any rfc recommendation when to start bill and stop it, some says its start after 4 and stop at 06 some says its start after 5 and stop at 7?
 
2. is it ok if someone start bill after 05 and stop after 06?
 
  


      
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