Maintenance Notice - PDF Generation
Dynamic PDF generation for web-based content is temporarily unavailable. This maintenance affects dynamic PDF files that are generated from either the HTML-based page or manual that you are viewing. Links that normally allow this functionality have been hidden, and will reappear as soon as the feature is restored.


Note: Access to static files, including PDF files that are not dynamically generated from our web-based content, is unaffected.

Jump to: navigation, search

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

SIP Endpoint SDK T-Lib-Initiated MakeCall re-INVITE.jpg

This page was last edited on January 23, 2014, at 23:12.

Feedback

Comment on this article:

blog comments powered by Disqus