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draft-lennox-sip-reg-payload-00.txt
draft-lennox-sip-reg-payload-01.txt [draft-lennox-sip-reg-payload-00.txt]
draft-lennox-sip-reg-payload-02.txt [draft-lennox-sip-reg-payload-01.txt]
draft-lennox-sip-reg-payload-03.txt [draft-lennox-sip-reg-payload-02.txt]