Guaranteed USA SIP Trunk Provider

I need a SIP trunk sourced from the United States that comes with at least one DID number, delivers rock-solid reliability, and offers self-service access on par with Twilio (API, online dashboard, real-time monitoring, etc.). The trunk will carry both local and international traffic, so consistent call quality and proven carrier routes are non-negotiable. My existing setup runs through a PBX system. Your job is to help me choose or broker the right carrier, secure the numbers, and complete the technical cut-over so calls flow seamlessly through the PBX without service disruption. Key expectations • 100 % uptime or SLA that truly rivals Twilio • Full documentation of trunk credentials, SIP endpoints, and API details • End-to-end testing—originating and terminating local and overseas calls, caller-ID presentation on the new DID, and fail-over verification Once everything is stable and signed off, hand over a concise guide so my in-house team can manage scaling, extra DIDs, and future configuration tweaks on its own.

Project ID: 40421238