Feel free to tag @AI Evy with additional questions. I also appreciate feedback, it helps me improve.

### Answer Yes, you can pass both

inbound_agent_id

and

outbound_agent_id

in the same import request. [(1) ]() The Import Phone Number endpoint accepts these optional body parameters: -

inbound_agent_id

(string | null) - Unique id of agent to bind to the number for receiving inbound calls -

outbound_agent_id

(string | null) - Unique id of agent to bind to the number for conducting outbound calls Termination URI Format The

termination_uri

parameter uses the Twilio elastic SIP trunk termination URI format. Per the documentation: "The termination uri to uniquely identify your elastic SIP trunk. This is used for outbound calls. For Twilio elastic SIP trunks it always end with

.pstn.twilio.com

." Example format:

"someuri.pstn.twilio.com"

Example Request:

javascript
import Retell from 'retell-sdk';
const client = new Retell({
  apiKey: 'YOUR_RETELL_API_KEY',
}) ;
const phoneNumberResponse = await client.phoneNumber.import({
  phone_number: '+14157774444',
  termination_uri: 'someuri.pstn.twilio.com',
}) ;
console.log(phoneNumberResponse.inbound_agent_id) ;

You can also optionally include

sip_trunk_auth_username

and

sip_trunk_auth_password

if your SIP trunk requires authentication.

​ To learn more, see the sources I considered: [[1] Import Phone Number](https://docs.retellai.com/api-references/import-phone-number) ​