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

# SIP to Your Agent

> Allow approved telephony systems to send inbound SIP calls to a Vida Agent.

Inbound SIP lets an approved carrier, PBX, or proxy send calls directly to a Vida Agent. Restrict
the source systems before sending production traffic.

## Allow the source addresses

Add every public source IP that can send SIP requests to the Agent's SIP IP access list. Do not add
broad networks when the provider supplies stable signaling addresses.

After changing the list, read it back and preserve unrelated authorized sources. Removing an address
can interrupt inbound calls from that system.

## Address the Agent

Send the SIP request to the Agent's Vida SIP URI using its published username or assigned phone
number.

```text theme={null}
sip:AGENT_USERNAME@sip.vida.dev
sip:+15551234567@sip.vida.dev
```

Use a valid E.164 number in the SIP `From` identity unless your approved deployment specifies a
different supported identity. Invalid or unauthorized source information can cause the call to be
rejected.

## Test the inbound route

1. Confirm the exact Agent username or number.
2. Confirm every actual signaling source is allowed.
3. Place a call from the production-like PBX or carrier.
4. Verify the Agent, caller identity, audio, and greeting.
5. Test transfer and fallback behavior.
6. Inspect Vida logs and the provider's SIP trace.

<Note>
  Manage source addresses with the generated operations to
  [list](/docs/api-reference/sip/list-sip-ip-whitelist),
  [add](/docs/api-reference/sip/add-ip-to-sip-ip-whitelist), or
  [remove](/docs/api-reference/sip/remove-ip-from-sip-ip-whitelist) an entry.
</Note>