diff --git a/src/chat.rs b/src/chat.rs
index 64417d3..945d2b0 100644
--- a/src/chat.rs
+++ b/src/chat.rs
@@ -26,6 +26,8 @@ pub const CHATS: &[&str] = &[
     include_str!("chats/thebe.yaml"),
 ];
 
+pub const CONTACTS: &[&str] = &["icarus", "travel", "luna", "nox"];
+
 pub const TEXT_CONTINUE: &str = "Continue...";
 
 pub const TOKEN_CHAT: &str = "chat";
@@ -897,6 +899,7 @@ pub fn handle_chat_scripts(
     mut ew_achievement: EventWriter<game::AchievementEvent>,
     id2pos: Res<game::Id2Pos>,
     id2v: Res<game::Id2V>,
+    mut prefs: ResMut<Preferences>,
 ) {
     for script in er_chatscript.read() {
         // Parse the script string
@@ -1020,6 +1023,14 @@ pub fn handle_chat_scripts(
                     }
                 }
             }
+            "registercontact" => {
+                if CONTACTS.contains(&param1) {
+                    prefs.contacts.push(param1.to_string());
+                    prefs.save();
+                } else {
+                    error!("Can't register contact `{param1}', it doesn't exist in the chat::CONTACTS constant.");
+                }
+            }
             _ => {
                 error!("Error, undefined chat script {name}");
             }
@@ -1030,6 +1041,7 @@ pub fn handle_chat_scripts(
 pub fn update_chat_variables(
     mut vars: ResMut<var::GameVars>,
     settings: Res<var::Settings>,
+    prefs: Res<var::Preferences>,
     q_player: Query<&actor::Suit, With<actor::Player>>,
 ) {
     if let Ok(suit) = q_player.get_single() {
@@ -1043,15 +1055,7 @@ pub fn update_chat_variables(
             "player_suit_health_percent",
             ((suit.integrity * 100.0).round() as u8).to_string(),
         );
-        vars.set_in_scope(
-            "$",
-            "ar",
-            if settings.hud_active {
-                String::from("1")
-            } else {
-                String::from("0")
-            },
-        );
+        vars.set_in_scope("$", "ar", bool2chatvar(settings.hud_active));
         let wears_chefhat = if let Some(ava) = hud::PLAYER_AR_AVATARS.get(settings.ar_avatar) {
             match ava.0 {
                 hud::Avatar::ChefHat => 1,
@@ -1061,5 +1065,24 @@ pub fn update_chat_variables(
             0
         };
         vars.set_in_scope("$", "chefhat", wears_chefhat.to_string());
+
+        // Set phone variables
+        let mut any = false;
+        for contact in CONTACTS {
+            let value = prefs.contacts.contains(&contact.to_string());
+            if value {
+                any = true;
+            }
+            vars.set_in_scope("phone", contact, bool2chatvar(value));
+        }
+        vars.set_in_scope("phone", "any", bool2chatvar(any));
+    }
+}
+
+fn bool2chatvar(var: bool) -> String {
+    if var {
+        String::from("1")
+    } else {
+        String::from("0")
     }
 }
diff --git a/src/chats/phone.yaml b/src/chats/phone.yaml
index 3cc68cc..079a761 100644
--- a/src/chats/phone.yaml
+++ b/src/chats/phone.yaml
@@ -1,9 +1,14 @@
 - chat: phone
+- if ~phone$any:
+  - "Error: Phonebook empty."
+  - goto: EXIT
 - Select contact to call.
-- FASTravel:
+- if: phone$travel
+  FASTravel:
   - script: changename FASTravel™ Chatbot
   - This is FASTravel, how can I help you?
-- Icarus:
+- if: phone$icarus
+  Icarus:
   - script: changename Icarus
   - Well hi there!
 - "[Cancel]":
diff --git a/src/chats/serenity.yaml b/src/chats/serenity.yaml
index ef61284..545bd5e 100644
--- a/src/chats/serenity.yaml
+++ b/src/chats/serenity.yaml
@@ -14,6 +14,7 @@
   - How are you doing?
   - goto: howru
 - Oh hey, you're awake!
+- script: registercontact icarus
 - set: $met
 - I found you drifting out cold, and thought, I better watch over you.
 - Took us here behind that moonlet, to shield you from the micrometeorites.
diff --git a/src/var.rs b/src/var.rs
index fdf4f18..e8d08c5 100644
--- a/src/var.rs
+++ b/src/var.rs
@@ -477,6 +477,7 @@ pub struct Preferences {
     #[serde(default = "Preferences::default_flashlight_power")]
     pub flashlight_power: usize, // 0-2
     pub thruster_boost: usize, // 0-2
+    pub contacts: Vec<String>,
 
     #[serde(skip)]
     pub source_file: Option<String>,