Copper Chat - Pay or get paid for private one-on-one video chats.
Messenger Video Calls - Facebook Messenger, now with HD video calls
oorja - Your Dedicated Meeting Spaces Online — no installations
WhatsApp - WhatsApp Messenger: More than 1 billion people in over 180 countries use WhatsApp to stay in touch with friends and family, anytime and anywhere.
Airmink - Secure and private 1-on-1 video, voice, chat, file sharing
Voiptime Cloud Call Center - Cloud call center & telemarketing solution