Media bypass
The Mediation server is able to decide if a client can be connected directly to a PSTN gateway (without traversing the server itself).
The preceding solution reduces latency; the number of points in which we could have packet loss or failures, saves WAN bandwidth and lowers the hardware requirements for the Mediation server (making it easier to collocate on the Front End).
It is also an essential feature for branch offices having a local PSTN gateway available, so that local clients are able to connect to the public switched line with no need to talk to the Mediation server (that could be located on a central site).
To deploy media bypass we have some requirements:
The voice gateway, PBX, or ITSP on our network (defined as Mediation server peers) must support media bypass
The Mediation server peers must accept media traffic directly from the Lync Server
Lync clients and the Mediation server peer must be well connected (local network or high bandwidth geographical network)
There are...
