[asterisk-users] CANCEL FORWAR

Wed Nov 12 19:13:58 CST 2008

Hi All,

Have any way to asterisk forward the 487 Request Cancelled in SIP TO SIP
call?

In a SIP to SIP call when the called peer B send 487 to Asterik, Asterisk
return to calling peer A  603

PEER A                    ASTERISK             PEER B

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

|<------------TRYING|                             |

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

|                                      |<-------TRYING|

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

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

|                                      |<------------487|

|                                      |ACK----------->|

|<-----------------603|                              |

|ACK---------------->|                              |

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