Download for samsung gingerbread 2.3.4 JVR
Download for samsung gingerbread 2.3.4 JVQ
Download for samsung gingerbread 2.3.4 JVP
Downlaod for samsung gingerbread 2.3.3 mirror) (JVK, JVB, JVA,JVH, JVH, JV9, JVO)
2-Go to Settings, Call Settings, Internet Calls & Accounts to wrote the details of your sip account. In example:
3-On Use Internet Calling choose your prefered option. I selected Ask for each call so every time I make a call to spanish landline numbers I make a free sip call thanks to my nonoh account.
Now you can make sip calls without using any third party software, no matter if you are using Wifi or 3G
Credits to modaco, dfi2k5, ZS6WDL and/or whoever discovered this way to get integrated SIP on our gingerbread roms.
I created the zip file thanks to the info provided here and here（same info in both cases just wanted to credit everyone)