SIP response class1

SIP response codes, class 1: Provisional messages

These are sent within a SIP dialogue

  • 100 Trying
  • 180 Ringing
  • 181 Call Is Being Forwarded
  • 182 Queued
  • 183 Session Progress

Created by: oej, Last modification: Sun 04 of Jan, 2004 (14:52 UTC)
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