We are the top linphone customization team in the market dealt with top companies of telecom. What are the features you are looking for Calling, Messaging, call history etc? We have developed more than 60 linphone apps for different people over the Globally SOME OF OUR WORKS ARE
Magictelnex, Infiny, Viatalk, OyePhone, UVConn, Sim2 dial, Blastream
You can also have a look at our portfolio in freelancer https://www.freelancer.in/u/eliteapps
which can showcase our works clearly
Do INBOX us and provide the details we can rebrand and give you faster