diff --git a/1systems/x.nix b/1systems/x.nix
index 08da920..57e120e 100644
--- a/1systems/x.nix
+++ b/1systems/x.nix
@@ -66,6 +66,7 @@
     ];
   makefu.server.primary-itf = "wlp2s0";
   makefu.full-populate = true;
+  makefu.umts.apn = "web.vodafone.de";
 
   nixpkgs.config.allowUnfree = true;
   krebs.nginx = {
diff --git a/3modules/umts.nix b/3modules/umts.nix
index 91ac137..8666994 100644
--- a/3modules/umts.nix
+++ b/3modules/umts.nix
@@ -26,7 +26,7 @@ let
     Dial Command = ATDT
     Modem = ${cfg.modem-device}
     Baud = 460800
-    Init1 = AT+CGDCONT=1,"IP","pinternet.interkom.de","",0,0
+    Init1 = AT+CGDCONT=1,"IP","${config.makefu.umts.apn}","",0,0
     Init2 = ATZ
     Init3 = ATQ0 V1 E1 S0=0 &C1 &D2 +FCLASS=0
     ISDN = 0
@@ -54,6 +54,13 @@ let
         to avoid race conditions.
       '';
     };
+    apn = mkOption {
+      default = "pinternet.interkom.de";
+      type = types.str;
+      description = ''
+        apn to use for dailing
+      '';
+    };
   };
 
   imp = {