Cisco Hosted Collaboration Solution vs. Calilio

AT&T can deliver a rich array of PBX/IP Telephony features, IP Phone, video phone and soft phone support for making calls over the public switched telephone network, or over the computer via IP, Single Number Reach on wired and wireless devices to reduce missed calls, Voicemail and Unified Messaging to capture your voice messages and make them available via an email message, Presence and collaboration to quickly locate and connect with contacts

Calilio is a cloud-based business phone system and call center software built for sales, support, and remote teams. It helps businesses move away from traditional desk phones and on-site PBX hardware by enabling teams to make and receive calls over the internet using VoIP technology from desktop, web browser, iOS, and Android devices. With Calilio, businesses can buy or port virtual phone numbers, including local, mobile, and toll-free numbers, from 100+ countries and manage customer communications from a shared workspace.