Vapi x Plivo: Connect Your SIP Stack to Vapi Voice Agents

Plivo's integration with Vapi via SIP offers a streamlined approach for scaling voice capabilities without losing flexibility, especially for those using Plivo for telephony who wish to enhance their voice stack with real-time language models. This integration allows users to treat SIP as a programmable transport layer, facilitating the use of existing Plivo numbers with Vapi to power multilingual voice agents built on modern language models. It supports both inbound and outbound calls, granting developers full control over routing and model selection while maintaining existing infrastructure. Setting up outbound calls involves creating SIP trunks in Plivo, whitelisting Vapi's IPs, and using Vapi's API for call management, while inbound calls require configuring IP URIs and SIP endpoints. This setup is designed to ensure that telephony does not hinder language model workflows, allowing for open, programmable, and scalable voice operations, and it is compatible with any SIP-compatible carrier, although it is particularly beneficial for current Plivo users.

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