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+++ Version 3
@@ -19,4 +19,4 @@
[SIP] can also be used for signaling [Internet] real-time fax delivery. This requires no major changes. Fax might be carried via [RTP], [TCP] (e.g., the protocols discussed in the [Internet] fax WG) or other mechanisms.
-[SIP] is independent of the packet layer and only requires an unreliable datagram service, as it provides its own reliability mechanism. While [SIP] typically is used over [UDP] or [TCP], it could, without technical changes, be run over [IPX], or carrier pigeons, frame relay, [ATM] [AAL5] or [X.25], in rough order of desireability.
+[SIP] is independent of the packet layer and only requires an unreliable datagram service, as it provides its own reliability mechanism. While [SIP] typically is used over [UDP] or [TCP], it could, without technical changes, be run over [IPX], or carrier pigeons, frame relay, [ATM], [AAL5] or [X.25], in rough order of desireability.
[