Modify, build and upload android voice app -- 2

Please note... 1- You must know Linphone. 2- Don't bid and then ask me what is my budget. ------------------------------------------------------------------------- A- I have a linphone based VOIP app. I want to modify it by: 1- replace 3 files. ( I will provide) 2-change audio selection to pmcu only. 3- replace wherever showing xxxx@[login to view URL] with the number only no need to show @[login to view URL], hide @sipproxy4gmobily.com. B- Build it using my existing source code. C- upload it to google store. you can download existing apk from [login to view URL] Source code: [login to view URL] Attached are the 3 files need to be replaced Please note... 1- You must know Linphone. 2- Don't bid and then ask me what is my budget.