diff --git a/machines/rigel/configuration.nix b/machines/rigel/configuration.nix
index b820028..025ff57 100644
--- a/machines/rigel/configuration.nix
+++ b/machines/rigel/configuration.nix
@@ -1,4 +1,4 @@
-{ config, ... }:
+{ config, pkgs, self, ... }:
 {
   imports = [
     (import ../../lib/auto-accept-zerotier-members.nix {
@@ -10,6 +10,8 @@
     })
   ];
 
+  nixpkgs.overlays = [ self.overlays.packagesOverlay ] ;
+
   system.stateVersion = "25.11";
   clan.core.sops.defaultGroups = [ "admins" ];
   clan.core.networking.targetHost = "root@[${config.clan.core.vars.generators.zerotier.files.zerotier-ip.value}]";
diff --git a/modules/clan/phonebox/default.nix b/modules/clan/phonebox/default.nix
index 19e3aab..748e4c9 100644
--- a/modules/clan/phonebox/default.nix
+++ b/modules/clan/phonebox/default.nix
@@ -240,6 +240,13 @@
                     syslog.local0 => notice,warning,error
                   '';
 
+                  "modules.conf" = ''
+                    [modules]
+                    autoload=yes
+
+                    load => res_fax_spandsp.so
+                  '';
+
                   # Dial plan config
                   "extensions.conf" =
                     let
diff --git a/test.tiff b/test.tiff
new file mode 100644
index 0000000..43384e4
Binary files /dev/null and b/test.tiff differ