I design, deploy, configure, and troubleshoot VoIP, call center, contact center, PBX, and fax server systems. My work covers Asterisk, FreeSWITCH, SIP trunks, WebRTC, IVR, predictive dialers, CRM integrations, REST APIs, multi-tenant environments, and white-label deployments. I support ITSPs, BPOs, healthcare teams, and businesses with installation, server configuration, testing, documentation, training, and ongoing technical support. Please message me before ordering so I can review your infrastructure and recommend the right scope.... Saiba mais