Validate and import a phone number from a provider (Twilio or Plivo)
sk_...)s3cr3t_...)"+14155551234"twilio, plivoExample: "twilio"AC)"ACxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx""your_auth_token_here""Main Office Line""agent_123""agent_456"phone_number: Phone number in E.164 formatnickname: Nickname if providedorganization_id: Organization IDphone_number_type: Type (usually CUSTOM for imported numbers)number_provider: Provider nameinbound_agent_id: Assigned inbound agent ID (if provided)outbound_agent_id: Assigned outbound agent ID (if provided)inbound_trunk_id: LiveKit inbound trunk IDoutbound_trunk_id: LiveKit outbound trunk IDdispatch_rule_id: LiveKit dispatch rule IDcreated_at: Creation timestampphone_number: Validated phone numberfriendly_name: Friendly name from providercapabilities: Phone number capabilities (voice, SMS, etc.)status: Status from providermessage: Validation messageimported_at: Timestamp when import completedorganization_id: Organization IDprovider: Provider name+14155551234)