> ## Documentation Index
> Fetch the complete documentation index at: https://docs.callers.ai/llms.txt
> Use this file to discover all available pages before exploring further.

# Telephony Integrations

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  <Card
    title="Twilio"
    icon={<svg width="35px" height="35px" viewBox="0 0 256 256" xmlns="http://www.w3.org/2000/svg">
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          <path d="M128,0 C198.656,0 256,57.344 256,128 C256,198.656 198.656,256 128,256 C57.344,256 0,198.656 0,128 C0,57.344 57.344,0 128,0 Z M128,33.792 C75.776,33.792 33.792,75.776 33.792,128 C33.792,180.224 75.776,222.208 128,222.208 C180.224,222.208 222.208,180.224 222.208,128 C222.208,75.776 180.224,33.792 128,33.792 Z M159.744,133.12 C174.448029,133.12 186.368,145.039971 186.368,159.744 C186.368,174.448029 174.448029,186.368 159.744,186.368 C145.039971,186.368 133.12,174.448029 133.12,159.744 C133.12,145.039971 145.039971,133.12 159.744,133.12 Z M96.256,133.12 C110.960029,133.12 122.88,145.039971 122.88,159.744 C122.88,174.448029 110.960029,186.368 96.256,186.368 C81.5519708,186.368 69.632,174.448029 69.632,159.744 C69.632,145.039971 81.5519708,133.12 96.256,133.12 Z M159.744,69.632 C174.448029,69.632 186.368,81.5519708 186.368,96.256 C186.368,110.960029 174.448029,122.88 159.744,122.88 C145.039971,122.88 133.12,110.960029 133.12,96.256 C133.12,81.5519708 145.039971,69.632 159.744,69.632 Z M96.256,69.632 C110.960029,69.632 122.88,81.5519708 122.88,96.256 C122.88,110.960029 110.960029,122.88 96.256,122.88 C81.5519708,122.88 69.632,110.960029 69.632,96.256 C69.632,81.5519708 81.5519708,69.632 96.256,69.632 Z" fill="#F12E45"></path>
        </g>
      </svg>}
    href="/documentation/integrations/twilio"
  >
    Use your Twilio phone numbers in your inbound and outbound campaigns
  </Card>

  <Card
    title="SIP"
    icon={
<svg
    width="35px"
    height="35px"
    viewBox="0 0 30 30"
    fill="none"
    xmlns="http://www.w3.org/2000/svg"
>
    <path
        d="M1.11748 0.805453C0.733171 1.02748 0.666504 1.20609 0.666504 2.01328C0.666504 4.71158 1.66147 7.87061 3.26716 10.2705C6.0899 14.4894 10.6326 17.0536 15.7402 17.3111C16.5474 17.3518 16.6095 17.3461 16.8556 17.2083C17.3319 16.9417 17.3332 16.935 17.3329 14.7858C17.3327 12.9841 17.3251 12.8627 17.2008 12.6595C17.0228 12.3687 16.7708 12.2813 15.9667 12.2315C15.0211 12.1729 14.4772 12.0854 13.6244 11.8546C12.5413 11.5616 12.6186 11.5285 11.2738 12.859L10.1491 13.9716L9.8735 13.8478C9.4186 13.6434 8.12467 12.7704 7.49252 12.2414C6.2901 11.2351 5.13454 9.86922 4.3667 8.54667L3.98186 7.88396L5.13467 6.72907L6.28742 5.57425V5.25982C6.28742 5.08688 6.23082 4.75175 6.1616 4.51514C5.94912 3.78829 5.83108 3.08111 5.77278 2.18524C5.70984 1.21755 5.62382 0.990826 5.24271 0.787807C5.03585 0.677638 4.84677 0.666634 3.18389 0.668001C1.44729 0.669434 1.34062 0.676531 1.11748 0.805453ZM9.03252 2.06641V3.46632H9.94755H10.8626V3.9221V4.37788H9.94755H9.03252V4.83366V5.28945H10.4051H11.7776V3.88954V2.48964H10.8626H9.94755V2.03385V1.57807H10.8626H11.7776V1.12229V0.666504H10.4051H9.03252V2.06641ZM12.6926 2.97798V5.28945H13.1828H13.673V2.97798V0.666504H13.1828H12.6926V2.97798ZM14.5881 2.97798V5.28945H15.0456H15.5031V4.37788V3.46632H16.4181H17.3332V2.06641V0.666504H15.9606H14.5881V2.97798ZM16.4181 2.03385V2.48964H15.9606H15.5031V2.03385V1.57807H15.9606H16.4181V2.03385Z"
        fill="#33C758"
    />
</svg>
}
    href="/documentation/integrations/sip"
  >
    Add SIP and transfer voice calls over a SIP trunk or channel
  </Card>

  <Card
    title="Telnyx"
    icon={<svg width="35px" height="35px" viewBox="0 0 90 90" xmlns="http://www.w3.org/2000/svg">
        <g fill="#00E3AA">
          <path d="M88.447 78.75a12.19 12.19 0 0 0 1.203-8.852 13.174 13.174 0 0 0-.868-2.407 6.718 6.718 0 0 0-.395-.738L76.431 44.527H64.198l12.51 23.294a4.43 4.43 0 0 1 0 4.445 4.291 4.291 0 0 1-1.577 1.52 4.373 4.373 0 0 1-2.133.557H58.732a13.436 13.436 0 0 1-1.995 6.123A13.706 13.706 0 0 1 52.103 85h26.222a12.161 12.161 0 0 0 4.992-1.437 11.758 11.758 0 0 0 5.13-4.814ZM21.383 29.988h12.233l6.096-11.162a6.023 6.023 0 0 1 2.237-2.332 6.154 6.154 0 0 1 3.14-.86 6.15 6.15 0 0 1 3.14.86 6.018 6.018 0 0 1 2.236 2.332l5.92 11.162h12.232l-8.68-16.15a16.756 16.756 0 0 0-6.223-6.459A17.118 17.118 0 0 0 45 5c-3.07 0-6.083.823-8.714 2.38a16.754 16.754 0 0 0-6.222 6.457l-8.681 16.15Zm9.865 12.598a13.25 13.25 0 0 1 1.916-6.113 13.522 13.522 0 0 1 4.575-4.544H14.063v10.657h17.185Z"/>
          <path d="M33.2 43.362V72.48h5.564a5.361 5.361 0 0 0 3.2-1.1 5.218 5.218 0 0 0 1.871-2.782c.12-.423.18-.86.178-1.3v-17.47a7.144 7.144 0 0 1 2.13-5.06 7.379 7.379 0 0 1 5.13-2.123h24.763V31.929H44.802a11.718 11.718 0 0 0-8.205 3.355 11.34 11.34 0 0 0-3.396 8.078Z"/>
          <path d="M1.218 67.49a13.17 13.17 0 0 0-.869 2.408 12.246 12.246 0 0 0 1.204 8.87 11.757 11.757 0 0 0 5.13 4.795A12.16 12.16 0 0 0 11.675 85H45c3.14 0 6.15-1.227 8.37-3.411a11.553 11.553 0 0 0 3.468-8.236V44.507h-5.643a5.388 5.388 0 0 0-3.678 1.574 5.216 5.216 0 0 0-1.53 3.648V67.2a7.105 7.105 0 0 1-2.14 5.053 7.342 7.342 0 0 1-5.141 2.09H17.1a4.374 4.374 0 0 1-2.134-.556 4.288 4.288 0 0 1-1.576-1.52 4.467 4.467 0 0 1 0-4.465L25.9 44.508H13.568L1.612 66.734c-.138.271-.276.504-.394.757Z"/>
        </g>
      </svg>}
    href="/documentation/integrations/telnyx-integration"
  >
    Telnyx Integration provides detailed steps for setting up Telnyx with Callers
  </Card>
</CardGroup>