Subject: [SIP] ACK without Route header

From: Doug Hurtig <[email-masked]>
Date: Fri, 23 Feb 2001 10:11:30 -0600

Hi,

  If after sending an Invite a Record-Route header is received in
  a provisional  response and then a final response is received without a
  Record-Route header what are the ramifications of sending the ACK without
  a route header?  If the ACK is sent with same data as the Invite will the
  ACK not travel the same path as teh invite?

  What happens in the following scenario?

      A final response is received out of the blue  (no active transaction).  It
was
      possible that the record-route was received in a previous response.
However
      it this example the transaction timed-out and was deleted before the
final response
      was received. After getting the final response an ACK is built based on
the data
      in the final response and sent. If the final response did not contain a
record-route
      the ACK would not have a Route header.

--
Regards,
Doug Hurtig

Tekelec
2425 N. Central Expressway
Richardson, Texas 75080

[email-masked]
972.301.1203

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