Zendesk - Zendesk is a beautiful, lightweight help-desk solution.
AnswerConnect - 24/7 Live Call Answering Service
HiOperator - HiOperator is a virtual assistant that answers phone calls, chats with customers, provides in-app help, takes orders, and provides support.
HelloSells - Putting You in the Lead.24/7 Lead qualification service for sales & marketing teams. Boost your conversion rate & improve your ROI with lead capture, qualification & appointment booking.
GetHuman - Find customer service numbers fast
Bitrix24 Live Chat - Bitrix24 Live Chat is a website that can set up a live chat widget for your website or public page and gives you high-quality customer support in real-time.