Cisco Meraki's first SIP service provider, IntelePeer, offers customers the ability to "port" existing numbers from their existing carrier to IntelePeer using the Cisco Meraki onboarding interface described here. Once the porting process is complete, these ported phone numbers can be configured within Dashboard in the same fashion as any other phone number purchased via Dashboard.
A number port cannot be completed if the existing service has been canceled so it is imperative that the porting procedure below is undertaken while the existing service is still operational. Once the porting request has been submitted to IntelePeer, the duration of the porting process will depend upon the incumbent service provider notifying the NPAC (Number Portability Registration Center) that it authorizes the port.
To begin the number porting process within Dashboard:
Keeping Your Telephone Number When Changing Service Providers: https://www.fcc.gov/consumers/guides...vice-providers
How Local Number Portability Works: https://www.npac.com/number-portability/how-lnp-works
Service Provider Onboarding and Purchasing Phone Numbers: https://documentation.meraki.com/MC/..._Phone_Numbers