Hello
I have seen your post you want to white label linphone to our company and upload it to Google play, i will make the nice app with the features you mentioned in the project post. I have experience in creating the SIP Dialer Linphone app. I have worked on the similar apps please take a look into below given link. I will make it for you accordingly. I have developed more than 200+ apps on play and Apple stores you may check portfolio i have experienced in similar apps development.
I have already worked on similar kind of project and related to these many other projects I did Chat app , social dating , classified , restaurant , GPS .Geo location APP.
I do my work very efficiently and try to minimize budget of yours Client Satisfaction is my first priority I look forward to hear from you soon.
Thanks
Julian