You can extract the from and to phone numbers in an individual dispatch rule call using the following methods: • From the SIPCallInfo object (in LiveKit SDKs):

from_number = call_info.from_uri.user   # The caller's phone number
to_number = call_info.to_uri.user       # The called number

• From participant attributes (if

hide_phone_number

is not enabled):

from_number = participant_attributes.get("livekit.sip.phone_number")     # Caller (from)
to_number = participant_attributes.get("livekit.sip.trunk_number")     # Called (to)

During dispatch rule processing, these are extracted as

call.From.User

(from) and

call.To.User

(to). If

hide_phone_number

is enabled, the phone numbers will not appear in participant attributes and are partially masked elsewhere. For more information, see the SIP SDK documentation for your programming language. References: Sources: livekit-protocol/livekit/protocol/sip.py | livekit/livekit_sip.pb.go | SIP APIs | LiveKit Docs