Would siriport iOS 6 work on iPhone 4 (6.0.1) GSM?

My friend is trying to install siri on his jailbroken iPhone 4. We've installed siriport original iOS 6, and it shows up in the settings, but holding the home button only pops up voice control. Even after a tethered reboot, it still doesn't launch siri. What can I do?

Try to turn it off and on again in settings--->general--->siri… See if it makes a difference… Make sure you've installed the certificate and rebooted after that… It should work as it worked on my 6.0.1. But there's a little bug which is quite annoying… Each time I receive a text.either normal or imessege… It causes my springboard to crash and goes into safe mode… I'll suggest you to stay away from it… Its up to you… If its not working. You can try acid siri for ios 6.0.1…