I'd be happy to help you retrieve the phone number of a caller in LiveKit! You can find this information using the

sip.phoneNumber

attribute, which is part of a SIP participant's

attributes

field when the participant type is

SIP

. Let’s walk through the steps together: Steps to Retrieve the Caller’s Number: 1. First, check if the participant’s kind is

SIP

by using

participant.kind == ParticipantKind.SIP

. 2. Then, access the

sip.phoneNumber

from the participant’s attributes dictionary. Example (Node.js):

if (participant.kind == ParticipantKind.SIP) {
  console.log(participant.attributes['sip.phoneNumber']);
}

Example (Python):

if participant.kind == rtc.ParticipantKind.PARTICIPANT_KIND_SIP:
    caller_number = participant.attributes.get('sip.phoneNumber')
    if caller_number:
        <http://logger.info|logger.info>(f"Caller phone number is {caller_number}")

Just a couple of important things to keep in mind: • If

HidePhoneNumber

is set to

true

in your dispatch rule configuration, the

sip.phoneNumber

attribute won’t be available. • For outbound calls, the

sip.phoneNumber

reflects the number dialed by the SIP participant, not the caller’s actual number. If you have any questions or need further assistance, feel free to ask—I’m here to help! Sources: SIP participant | LiveKit Docs