I’m looking for someone experienced in Twilio Elastic SIP + Retell AI telephony setup to complete a two-phase integration.
You must have done this before end-to-end, not learning it for the first time. Please only apply if you have proven experience with Twilio SIP trunking and Retell AI voice agents.
We will work live on screen share so you can configure the accounts while I provide login details, number purchases, and payment authorisations.
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Phase 1 (Build & Setup) • Create Twilio account setup for UK use • Purchase UK number and attach it to an Elastic SIP Trunk • Configure Termination host, Credential List, and Origination = sip.retellai.com • Add this into Retell AI as a Custom Telephony route for inbound and outbound calls • Fix current outbound error “telephony provider permission denied” • Enable UK geo permissions (and caller ID verification if needed) • Setup SMS on Twilio + Retell AI
Phase 2 (Data → Automations + Logging) • Push call summaries into Google Sheets or Make.com via webhook • Log / update Activities into sheets automatically • Configure agent callback flow so callers can continue the conversation thread
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What I’m looking for • Someone who already understands both platforms • UK based or close timezone strongly preferred (I want to speak during UK hours) • Someone who can take this project forward across multiple future phases if this goes well
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What I need from you to apply 1. Examples of Twilio SIP and Retell AI telephony projects you’ve completed 2. Confirmation of your experience integrating outbound calling on SIP trunks 3. Your individual price for Phase 1 and Phase 2 (separately) 4. Your availability for a call this week to discuss and screen share
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