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I require a Skype-like service which allows the following:
- Voice / Video Conferences
- Instant Messaging services
- One to one conferences to one to many.
- File Transfer
- Fully Encrypted Communication
- Available on Android, Iphone and Blackberry for Mobiles
- Available on PC, MACOS for Desktops
I was thinking of using Kamailio for the SIP Server since it is a free Open Source. For the client, I was thinking of using Jitsi but it doesn't seem to support mobile platforms so Linphone might be an option as well.
I am open for suggestions to team who has done this kind of project before. Please do not proposed a paid, expensive solution as this is just meant for a small company of less than 5 to communicate.
Your charges should mostly entail installation and configurations.