Call Sandwich is a certified Elite Retell AI partner — the highest tier in Retell's partner program. We specialize in building enterprise-grade voice AI integrations for complex telephony environments that standard agencies won't touch. Our team connects Retell to legacy and modern stacks alike — ViciDial, Asterisk, FreeSWITCH, NICE inContact, Avaya, Talkdesk, Genesys, and more — handling everything from SIP trunk configuration to full white-label AI platform development. Whether you need outbound AI sales agents, enterprise inbound routing, AI + human handoff, or a fully white-labeled Retell platform, Call Sandwich delivers production-ready, multi-tenant deployments built to scale.

We build voice-enabled automations that streamline pharmacy workflows in order to elevate patient care.

Training, research, and development of call agents with AI. My name is Sonia, and I am passionate about voice AI. I firmly believe in all the possibilities it offers to businesses, allowing them to improve their communication and focus on those areas that can bring the most value to people.