diff --git a/example/resources.conf.prod b/example/resources.conf.prod
index 0c8792e..b4ab445 100644
--- a/example/resources.conf.prod
+++ b/example/resources.conf.prod
@@ -137,7 +137,7 @@
   ki: '07F35D0A9476646169669401215580E0'
   auth_algo: 'comp128v1'
   ciphers: [a5_0, a5_1]
-  features: ['sms', 'ussd', 'gprs', 'sim']
+  features: ['sms', 'voice', 'ussd', 'gprs', 'sim']
 
 - label: gobi2k
   path: '/sys/devices/pci0000:00/0000:00:12.2/usb1/1-5/1-5.4/1-5.4.1/1-5.4.1.5'