[SIPForum-discussion] In-Reply-To Header
fråmedrëlay
framedrelay at yahoo.com
Fri Jan 22 05:59:40 UTC 2010
Hi,
Can someone please tell me whats the real use or Scenario which I use this (In-Reply-To) header?
Your reply will be much appreciated.
Regards,
Sylvester
RFC Says,
20.21 In-Reply-To
The In-Reply-To header field enumerates the Call-IDs that this call
references or returns. These Call-IDs may have been cached by the
client then included in this header field in a return call.
This allows automatic call distribution systems to route return
calls to the originator of the first call. This also allows
callees to filter calls, so that only return calls for calls they
originated will be accepted. This field is not a substitute for
request authentication.
Example:
In-Reply-To: 70710 at saturn.bell-tel.com, 17320 at saturn.bell-tel.com
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