• Twilio customers often need to connect voice calls across separate Twilio accounts. • Twilio Application Connect offers an optimized, cost‑effective solution for inter‑account calls. • If Application Connect isn’t viable, a custom SIP proxy can bridge accounts via SIP. • The blog provides a Kamailio‑based SIP proxy example, deployable with Terraform on AWS. • The destination account must configure IP ACLs or credentials to accept incoming SIP traffic. • Using SIP avoids PSTN charges and offers lower latency compared to dialing via phone numbers.
Article Summaries:
- Build a Proxy to Connect a Call Between Two Twilio Accounts via SIP Time to read: If you have returned to this page after reading the post referenced above, you likely need to connect calls between two Twilio accounts using SIP and not using Application Connect. This may be due to a technical reason, or one of the owners of the Twilio Accounts does not want to use Application Connect. With this solution, customers will be able to send calls via SIP from a source Twilio account to a destination Twilio account. The destination Twilio account needs to make configuration changes (IP ACL or credent
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