First, you will need DLDI(Dynamically Linked Device Interface) Patching. Learn more here.
Once that's enabled:
- Download from the Download Now link towrd the bottom of this page.
- Uncompress zip files in the filesystem root of your memory card.
- You must have directory: svsip.
- In this, directory you must define parameters of your SIP account.
- Be careful to check your number before calling, the keyboard doesn't always work correctly.
- Press 'A' to quit application.