Muhammad U.

I build reliable, scalable voice and SMS communication systems using Twilio and Plivo — with 10+ years of experience and 57+ successful projects delivered on Upwork. From advanced call center platforms and CRM-integrated auto-dialers to bulk SMS applications and AI-powered voice bots, I turn complex telephony requirements into clean, working solutions. My clients include real estate companies, sales teams, and SaaS businesses across the US and beyond. What I specialize in: Twilio & Plivo voice/SMS integration (calls, IVR, call routing, recording, conferencing) AI-powered voice systems (ChatGPT + Twilio voice bots, intelligent IVR) Call center setup & optimization (CallTools, CRM integration, agent dashboards) Bulk SMS platforms & two-factor authentication (2FA) Custom PHP development (Laravel, CodeIgniter, WordPress) Payment gateway integration (Stripe, PayPal, Braintree) I respond within 4–8 hours and bring the same commitment to a $50 fix as a $5,000 build. My 100% Job Success Score and long-term client relationships speak for themselves — several clients have worked with me for 5+ years. If you need a Twilio or Plivo expert who delivers clean code, clear communication, and real results — let's talk.