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Latest revision as of 06:17, July 18, 2017
T-Lib-Initiated MakeCall re-INVITE
Description
UA1 calls UA2. If the UA1 endpoint does not support the REFER method, then the re-INVITE mechanism could be used. The main disadvantages of re-INVITE are:
- The phone may not reflect the real call progress unless early media is activated between both endpoints.
- Re-INVITE makes it next to impossible for third-party switches to track call topology and accumulate accurate call detail records (CDR).
Diagram
This page was last edited on July 18, 2017, at 06:17.
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