Hi, hope you are well. I am a Retell/VAPI AI automation developer. I need to do Retell + SIP trunking I think you are an expert on this field. Would be great if you can help me for this issue or just guide me at any level.

@Oldhand Hello! I'm glad to assist you with integrating Retell and SIP trunking using VAPI. To get started, could you please provide me with more details about your current setup or the specific aspects you need guidance on? For instance, are you looking to set up inbound or outbound calling, or both? Do you already have a SIP trunk provider, or are you looking for recommendations on that as well? Any additional context you can provide will help me give you the most accurate guidance.

@Oldhand refer to the following guides that demonstrate how to establish a connection with your SIP provider. **Note**: While these guides use Twilio as an example, the process remains consistent across other telephony providers. https://vapi.notion.site/SIP-104008c8393f80feaeb7de8ca19565ed Please don't hesitate to reach out if you require additional assistance.