CallTower vs OnSIP

CallTower is a well-known provider of cloud-based Unified Communications solutions for businesses across the globe. They were established in 2002 and are headquartered in the United States. CallTower offers various services, including Cisco® HCS, Webex, Microsoft® Teams Direct Routing, Office 365, and more. The company integrates and supports industry-leading cloud-based communication solutions, enhancing strategic and operational capabilities for their clients. With a focus on VoIP services, mobile applications, email hosting, unified messaging, and collaboration tools, CallTower ensures seamless communication experiences. Although some customers have reported challenges with billing and service interruptions, most appreciate the reliability, efficiency, and support provided by CallTower. The company's commitment to integrating various platforms and delivering exceptional customer service sets them apart from their competitors in the communication solutions market.

OnSIP is a business VoIP solution provider founded in 2004 and based in Manhattan, New York. They serve over 100,000 SMBs across various industries. Their services include unified communication tools like softphone apps, remote work tools, website chat, and video conferencing. You can build your own hosted VoIP plan or bundle all features to save costs. OnSIP's cloud-hosted PBX offers call management and secure communication services, including end-to-end encryption, SDES-SRTP encryption, customizable anti-spam filters, geographically distributed cloud, industry-leading reliability, and call routing and recording features. They have an excellent reputation and received multiple awards, including the Excellence in Customer Service Award from Business Intelligence Group for 2019-2023 and recognition as a FrontRunner in 2024 by Software Advice. They have an A+ rating with no complaints from BBB and receive positive feedback from users.