User's Manual 436 Document #: LTRT-10466
Mediant 500L MSBR
The device also supports "double call hold" for FXS interfaces where the called party,
which has been placed on-hold by the calling party, can then place the calling party on hold
as well and make a call to another destination. The flowchart below provides an example of
this type of call hold:
Figure 29-1: Double Hold SIP Call Flow
The flowchart above describes the following "double" call-hold scenario:
1. A calls B and establishes a voice path.
2. A places B on hold; A hears a dial tone and B hears a held tone.