eef156b1_Unified_MeetingPlace___DocWiki__Action
[Field] Outgoing Transport Type [Action] 
For reliability, we recommend that you select TCP, but you may choose to use UDP instead.
Cisco Unified MeetingPlace, Release 7.0 -- Configuring a SIP Trunk Security Profile in Cisco Unified Communications Manager for Cisco Unified MeetingPlace - DocWiki