The Session Initiation Protocol (SIP) "Replaces" Header
RFC 3891

Note: This ballot was opened for revision 05 and is now closed.

(Allison Mankin) Yes

(Jon Peterson) Yes

(Harald Alvestrand) No Objection

Comment (2003-12-16 for -)
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It is completely unclear to me whether the key that needs to be provided for retrieving a call from a "parking" place is the parking place's key or the original callee's key, or some key that the caller is supposed to "know" is authorized to collect a call parked by the original callee.
But since this document aggressively does not describe the services built on top of this functionality, I am not adding a DISCUSS for it; the details of authentication are probably better addressed in a doc that DOES describe the services. I hope that's forthcoming.

(Steven Bellovin) (was Discuss) No Objection

(Margaret Cullen) No Objection

(Bill Fenner) No Objection

(Ned Freed) No Objection

(Ted Hardie) No Objection

(Russ Housley) (was Discuss) No Objection

Comment (2003-12-16)
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1. s/sip.billybiggs.com/sip.example.com/

2. Please reword the last sentence of the paragraph at the top of page 12
to add clarity.  I suggest:
  
    Likewise in a call center environment, supervisors could have access to
    the credentials of each call center agent.

(Thomas Narten) No Objection

(Bert Wijnen) No Objection

(Alex Zinin) No Objection