They enhance clients' strategic and business operational capabilities by integrating business phone service, mobile applications, email hosting, unified messaging, instant messaging, audio, web and video conferencing, collaboration tools, contact center, cloud services and global networks into a single platform.

CallTower now offers their own proprietary Hosted Voice solution. They also offers integration with Skype and Microsoft. Being a Cisco provider, they are a great solution for current Cisco users looking to repurpose some of their hardware to reduce OpEx.