Hello,
We are a Platinum certified partner of 3CX in US and it is an IP PBX system which follows SIP protocol. We have also developed various VoIP apps from scratch and we are pretty confident to build a VoIP app with Twilio.
We would like to understand the complete scope of the project as, it will help us to suggest you an optimal solution.
We are a US based company (located in Cheshire, Connecticut) and we have recently started our business operations in India and Bahrain. We will soon expand our operations in UK and Australia as well.
We have 14+ years of overall industry experience in building ERP, CRM, POS, Mobile apps and various kinds of customized SaaS based solutions from scratch.
We have a team of Web and Mobile app developers who have 10+ and 7+ years of experience respectively, on PHP, .NET, Java, Python, Wordpress, Android and iOS platform. We are also well versed on Swift, Objective C and Kotlin programming languages.
We have so far developed multifaceted apps on Inventory Management, Accounting Management, VoIP, HRMS, Fleet Management, Flight Bookings, Shuttle Tracking, Automatic Vehicle Locator, GPS Navigation System, Learning Management, eCommerce, Weather Forecasting, Fintech, Mobile Triangulation etc.
Hence, please suggest us your availability for further discussion.
Looking forward to hearing from you.
Thanks.