The North American Numbering Plan (NANP) is a telephone numbering plan for World Zone 1, which comprises twenty-five distinct regions in twenty countries primarily in North America, including the Caribbean. Some North American countries, most notably Mexico, do not participate in the NANP.
A Name Authority Pointer (NAPTR) is a type of resource record in the Domain Name System of the Internet. NAPTR records are most commonly used for applications in Internet telephony, for example, in the mapping of servers and user addresses in the Session Initiation Protocol (SIP).
Network Address Translation (NAT) is a method of remapping one IP address space into another by modifying network address information in Internet Protocol (IP) datagram packet headers while they are in transit across a traffic routing device.
Common Mobile Radio System or traditional cellular networks consists of traffic from our SMS-enabled non-mobile carrier customers (AKA SMS-enabled OTT). We call these solution providers: NUVOs for Network Unaffiliated Virtual Operators as they provide mobile-operator like services such as voice and messaging and interwork with the legacy ecosystem. These are also called Cloud-based Messaging providers. These are primarily based in the United States. Key providers include: Twilio, Bandwidth, Nexmo (Vonage), Pinger, TextNow, and Google Voice.
Some SMSCs are able to provide a proof of delivery notification (similar to the concept of email COD), once the message has reached the subscriber’s handset. However, this does not mean the message is actually viewed; it has just arrived on the handset. Some Digital Interconnect customer’s use the notification feature (where available) to trigger their billing process and charge the subscriber for the service.
Number Resolution System – this is the Digital Interconnect global phone numbering database that is distributed to all Digital Interconnect data centers and accessible to all of Digital Interconnect messaging hubs. It utilizes data feeds from over 2 dozen authoritative sources around the world to populate the phone numbering information. One of the primary missions of NRS is to maintain up to date MNP (Mobile Number Portability) data in supported countries around the world.
The requirement set forth by federal legislation that allows consumers of mobile communication services to retain their mobile phone numbers for as long as they wish, even if/when they change mobile service providers. Legislation was passed to stop the requirements by carriers to change phone numbers each time the consumer switched carriers.