Hi All,

 

I had a doubt on History-info header present in Sip 18x Responses.

 

  UAC                                                        UAS

   |                                                          |


   |- INVITE -- ---------------------------------------------->|  

   |  Supported: histinfo                                     |

   |  History-Info: <sip:342...@9.6.3.33>;index=1,            |

   |                <sip:342...@9.6.3.34>;index=2,            |

   |                <sip:342...@9.6.3.35>;index=3             |

   |                                                          |

   |                                                          |

   |<-- 100 --------------------------------------------------| 

   |                                                          |

   |                                                          |

   |<--- 183 -------------------------------------------------| 

   |  Supported: histinfo                                     |

   |  History-Info: <sip:342...@9.6.3.33>;index=1,            |

   |                <sip:342...@9.6.3.34>;index=2,            |

   |                <sip:342...@9.6.3.35>;index=3,            |

   |                <sip:342...@9.6.5.78>;index=4             |

 

        

Are the History-info headers UAC received in 18x response useful to an
application or user ? 

If yes can you please quote an example where its useful to an
application/user .

How should the UAC's treat these HI headers? 

 

Thanks,

Divya.

 

 

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