SiriPort for iOS 5.1 numbered 1.5-0 is now available for installation from repository Apart from compatibility, the developers have made several changes to their proxy server which now handles the request without having frequent connectivity problems.

To those who is unaware, SiriPort allows you to install Siri voice assistant on your jailbroken iOS device without having iPhone 4S in hand and without buying any Siri proxy server. You are not required to install Spire cydia tweak. If it is already there on your iOS device, be sure to remove it.

WARNING: Please do not install it, if your iPhone 4, iPhone 3GS, iPod touch 4G, iPad 1G is running on jailbroken iOS 5.0.1. It wont work at all. SiriPort 1.5-0 version is only for iDevices running jailbroken iOS 5.1 firmware.

Supported devices:
iPhone 4/4 (CDMA)
iPhone 3Gs
iPod Touch 4G

Installation Instructions: SiriPort for iOS 5.1
Step 1: Jailbreak your iDevice follwing one of the tutorials on this site.

Step 2: Launch Cydia and add the Source to Cydia

Step 3: Install SiriPort for iOS 5.1. If you install using iFile you need install mobilesubstrate.

Step 4: Reboot your iOS device.

Step 5: Download iPhone 4S certificate file by visiting Email the certificate file to yourself and then open it on your device from your email. Alternative is opening this link in TapaTalk.

Step 6: Reboot your iOS device. Now, Go to settings and turn on Siri .

Step 7: Activate Siri and say Hi Siri Siri wont work, wait 1-4 minutes and try again. (Say Hi Siri again).Ccall Siri until she responds to you, the process is painful but in the end you get the original Siri, speeds up the process of connecting more 4S to the server.

Enjoy ;)