Best Telephony Software for Amazon Web Services (AWS)

VirtualPBX gives small businesses a complete, high-powered cloud phone system for $15/user/month with every feature already included. One simple plan. No contracts. No feature gates. Zero surprises. Just smarter voice engineering—whether teams operate at a desk, on the road, or remotely. Deploy AI FrontDesk for intelligent 24/7 call handling, and scale into advanced messaging capabilities as business needs evolve. Founded by the pioneers who invented cloud telephony in 1997, VirtualPBX backs every account with expert, U.S.-based support from specialists who genuinely understand small business. Having the right technology is critical—having the right technical team behind it levels the playing field.

ProSBC stands out as a robust, carrier-grade Session Border Controller tailored for both service providers and enterprises, offering advanced functionalities. Capable of handling up to 60,000 simultaneous sessions, it boasts features such as media transcoding, STIR/SHAKEN compliance, fraud detection, and configurations designed for high availability. Its versatility allows it to operate seamlessly across a range of platforms, including VMware, KVM/Proxmox, AWS, Microsoft Azure, and bare-metal servers. This makes ProSBC an ideal choice for diverse applications like SIP trunking, enterprise SIP trunking, CPaaS access, and TDM-to-SIP migration. Furthermore, it is designed to be interoperable with leading VoIP platforms and carrier networks, ensuring wide compatibility. The system is user-friendly, with a web-based interface that simplifies deployment, operation, and management. Additionally, the optional TB Analytics feature pack provides valuable insights for diagnosing network issues. Importantly, the software's scalability—from a modest 100 sessions to a robust 60,000—ensures that your SBC can grow alongside your needs, providing flexibility and reliability as your demands evolve. This adaptability makes ProSBC an excellent investment for future-proofing communications infrastructure.

Founded in January 2015, sipXcom emerged from a fork of the sipXecs project, initiated by the eZuce, Inc. development team. The sipXecs and SIPfoundry communities were struggling to expand their developer base due to a limiting contributor agreement, prompting the creation of sipXcom, which features an open contribution model. The source code for sipXcom is licensed under the copyleft-friendly AGLP v3 (Affero General Public License), ensuring greater flexibility for developers. Currently under development, SWARM is the codename for the upcoming iteration of the sipXcom and sipXecs projects, with a production launch expected in early 2017. This new platform will adopt a microservices-based architecture, enhancing scalability, reliability, and configurability beyond what sipX currently offers. SWARM is engineered to be compatible with any computing environment, including dedicated, virtual, or cloud servers, and also allows for hybrid setups that merge on-premise and cloud solutions. With these advancements, sipXcom aims to significantly improve user experience and functionality in the ever-evolving communication landscape.

AI-Powered Cloud Contact Center Solution. It powers innovative, personality-based routing. It also manages multichannel customer interactions in one conversation. Vocalcom is the world of digital engagement and artificial Intelligence (AI), where live agents are seamlessly integrated into the customer interaction flow. All customer interactions can be managed in one conversation. The new generation of cloud contact centre platform that integrates with existing systems and supports ALL channels. Vocalcom's intuitive user interface increases productivity and allows companies to weave all of their customer interactions across all channels into continuous conversation threads. This allows them to reduce customer effort while strengthening customer relationships with each interaction. Amazingly simple, adaptable, and powered by AI Keep the conversation going. All customer interactions, including chat, email, text message, phone, and social media, are available in one place.