#Looking for someone to build a complex ai agent.

4 messages · Page 1 of 1 (latest)

fiery jasper
#

Trying to build my own version of retell for personal use. Using twilio numbers some sort of llm.

Key requirements
Help calculate estimated monthly cost of running this system.
Must be significantly cheaper then retell or vapi
Must be able to make outbound calls from leads On a csv.
Use client information in the conversation such as name address ect.
Ask 5 qualifying question then proceed to transfer to human.
Sound as realistic as possible.
Rotate through available DID and select based on area code or state.
Voicemail detection to avoid unnecessary call lengths.
Has a simple front end I can upload csv start stop workflow and Resume where it left off

My understanding of this is that we would use

• Use Twilio Media Streams → WebSocket server (Node/Express).
• Stream audio into STT + LLM + TTS in real time.

Does this sound correct?

Need this built ASAP.

eager acorn
compact steppe
#

@fiery jasper thanks for the details. Yes your understanding is correct. We will use Twilio Media Streams - a WebSocket server (Node.js) - real time STT + LLM + TTS to make the voice bot talk in real time.

I can build a system that:

• Calls numbers from a CSV
• Uses client name/address in the conversation
• Asks your 5 qualifying questions
• Transfers to a human
• Detects voicemail to save minutes
• Sounds very realistic
• Rotates DIDs by area code
• Has a simple front end to upload CSV, start/stop, and resume
• Is cheaper than Retell or Vapi because we control all the billing (Twilio + low cost LLM/STT/TTS)

#

Monthly cost estimate (example):
For about 1,000 calls per month, average 3 minutes, the total cost usually falls around $120–$400/month, depending on country calling rates and the voice model you choose. Twilio call minutes are the main cost.