diff --git a/protobufs/rpc/io.proto b/protobufs/rpc/io.proto
index 9580ee56..9c7dadff 100644
--- a/protobufs/rpc/io.proto
+++ b/protobufs/rpc/io.proto
@@ -165,7 +165,9 @@ message EvaluateSIPDispatchRulesResponse {
   // Map SIP X-* headers from INVITE to SIP participant attributes.
   // Keys are the names of X-* headers and values are the names of attributes they will be mapped to.
   map<string, string> headers_to_attributes = 14;
-  // NEXT ID: 15
+
+  repeated string enabled_features = 15;
+  // NEXT ID: 16
 }
 
 enum SIPDispatchResult {