Can request call offer

src/data/call_signal.rs

@@ -42,6 +42,12 @@ pub struct NewRtcRelayMessage {
     pub data: String,
 }
 
+/// Request of a user for a call
+pub struct UserCallOfferRequest {
+    pub call_hash: String,
+    pub user_id: UserID,
+}
+
 impl SdpType {
     pub fn from_str(val: &str) -> Res<SdpType> {
         match val {