CSipSimple is a session initiation protocol (SIP)-based business VoIP solution that allows users to make calls over the internet using Android-based mobile devices. Key features include voicemail by email, call forwarding, caller ID and more.
Users can set up CSipSimple by providing basic information such as display names, usernames, their SIP server and passwords. CSipSimple also provides users with unique VoIP account numbers, which are used as phone numbers to receive calls.
CSipSimple also provides users with VoIP Direct, which allows them to make calls to their contacts by dialing a local number when the internet connection is not available.
Services are offered are based on the pay-as-you-go pricing model that includes support via phone, live chat and online FAQs.