Genesys Cloud Voice enables organizations to port phone numbers through a structured process requiring coordination with new carriers and submission of a Letter of Authorization (LOA). The LOA must contain specific organizational details including the account name from the Genesys Cloud invoice, service address, Account Number/ID (last eight characters of the Organization ID), Business Telephone Number (BTN), PIN if required, and proof of ownership documentation. The authorized contact executing the LOA must hold the Genesys Cloud Voice Admin role. Key operational requirements include submitting separate port requests for numbers with different service addresses and removing numbers from Genesys Cloud Voice after successful porting to prevent continued charges, though prorated monthly recurring charges apply for the current billing cycle. Organizations not invoiced directly by Genesys Cloud must coordinate with their partner to ensure accurate port request information. Proof of ownership can be demonstrated through a screenshot of the Number Management screen showing the relevant phone numbers. Genesys Cloud Voice provides comprehensive voice communication capabilities including number management, real-time number status indicators, bulk and individual toll-free number porting with associated Customer Service Records (CSRs) from Genesys Telecom, disconnect operations, billing cycle management, usage tracking, and service address retrieval for porting procedures. The platform offers transparent billing and usage summaries, pricing information, and detailed documentation on voice operations. If port requests are rejected despite providing correct information, organizations should contact Genesys Cloud Voice support with the complete list of numbers being ported, all information provided to the gaining carrier, and the rejection reason from the most recent attempt. User support is available through community forums and privacy policy documentation. Organizations not invoiced directly by Genesys Cloud should coordinate with their partner to ensure accurate port request information and proper execution of porting procedures.