A trunk is a logical connection between the Mediation Server role and a PBX, PSTN gateway, or Internet telephony service provider. Trunk configurations can be scoped so that they apply globally, to a Lync Server site, or to a specific trunk. If these settings vary across devices connected via trunks, a new trunk configuration might be required.
These settings are specific to the signaling and features available across a SIP trunk. Use Topology Builder to create the actual SIP trunk definitions.
A new trunk configuration has the following options:
• Maximum Early Dialogs Supported—This is the number of forked responses the device on the opposite side of the trunk can support for a single SIP invite that is ...