|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.
T-Lib-Initiated MakeCall re-INVITE
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).