Hi, I have a question regarding the REFER method: is it a target refresh method?
RFC 3515 doesn't say anything about it. However, the Contact header seems to be MANDATED in the REFER request (eventhough not shown in the examples in the draft). And, chapter 4 of RFC 4488 says: "This document defines a new SIP header field: "Refer-Sub". This header field is meaningful and MAY be used with a REFER request and the corresponding 2XX response only. This header field set to "false" specifies that a REFER-Issuer requests that the REFER- Recipient doesn't establish an implicit subscription and the resultant dialog. Note that when using this extension, the REFER remains a target refresh request (as in the default case -- when the extension is not used)." So, I guess that means that REFER IS a target refresh method? Regards, Christer
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