21252: Invalid RegionERROR: 21252error-21252 page anchorELASTIC SIP TRUNKINGERROR Descriptiondescription page anchorInvalid Region Possible Causespossible-causes page anchor The Region requested is not valid. Possible Solutionspossible-solutions page anchor Please see Localized Termination URIs for more information on the valid Elastic SIP Trunking Regions.