What are some alternatives?
When comparing Telcob and Wazo, you can also consider the following products
BulkSMS - SMS messaging service provider offering two-way SMS communication services.
FreeSWITCH - FreeSWITCH is an open-source media application designed to support popular protools such as SIP and WebRTC and provides a platform to develop voice and video applications.
MyOperator - MyOperator is a cloud-based call management system for voice communication purposes.
freepbx - FreePBX is a web-based open source GUI that controls and manages Asterisk (PBX).
Twilio - Brings voice and messaging to your web and mobile applications.
3CX Phone System - 3CXPhone is a free VoIP phone available for Windows, iPhone or any Android based smart phone such...