Apparatus and methods are disclosed for bridging communications between a private network and a public network. A mapping that associates a first set of IP addresses of endpoints in the private network with a second set of IP addresses of endpoints in the public network is provided which enables communications between the private network and public network for network-address-translation (NAT). In response to a data packet having a first IP address of the first set of IP addresses, the data packet is used to determine whether the local line should be accessed. In response to an indication that the local line should be accessed, the identifier among the second set of IP addresses may be used to activate bridging (e.g., ATB) circuit and redirect a call associated with the data packet by passing the data packet through the ATB circuit.

Certain aspects of the disclosure are directed to routing data communications based on time zone. According to a specific example, a data-communications system for routing data communications based on time zone includes a communications routing circuit and a processing circuit. The communications routing circuit receives and routes data communications to a plurality of data communications stations and provides data communications services to remotely-situated client entities. For data communications routed for client entities in which a time zone routing feature is applied, the processing circuit determines a geographic location of the respective data communications station. The processing circuit then identifies a respective set of routing functions, based on a time zone of the geographic location, and routes the data communication based on the time zone, and according to the respective set of routing functions.

Each of number management devices of a number management system includes a request reception unit configured to receive a number update request including number portability information, a transaction generation unit configured to generate a transaction for the received number portability information, a block proposal unit configured to acquire each of transactions generated in response to a plurality of number update requests, generate a block to be newly proposed, and transmit the generated block to be proposed to each of the plurality of number management devices, and a block approval unit configured to approve the block to be proposed by confirming a predetermined normal state of the block to be proposed and store the block to be proposed in a storage unit, with the block to be proposed connected to the block stored as the blockchain.

Aspects of the subject disclosure may include, for example, a method and system to interconnect a first communications carrier to a second communications carrier by receiving a request to connect a communication from a first carrier to a second carrier; filtering the request to identify a specific name authority pointer (NPA-NXX) number from a plurality of specific name authority pointer (NPA-NXX) numbers; when the filter identifies the specific name authority pointer (NPA-NXX) number, modifying a private ENUM (tElephone NUmber Mapping) domain of the request to include an intercarrier ENUM apex based domain with a DNS (domain name server) recursion zone; retrieving a routing record using a domain name server (DNS) indicated by the intercarrier ENUM apex based domain; and routing the communication to the second carrier using the routing record. Other embodiments are disclosed.

Methods and devices for establishing a communication between a first and a second terminal are described. The disclosed technology can be implemented in or by a server or a terminal in communication with the server. The first terminal can to the server, using a first calling identity, a request including connection information and an identifier of the first terminal. Using the identifier, the server can obtain from a database a pair of calling identities including one certified and one non-certified, the pair comprising the first calling identity and a second calling identity. The server can determine, from one of the calling identities and from the connection information, a connectivity mode of the terminal, and determine a routable number on which the terminal can send a communication to the server. The server can route the communication towards the second terminal by presenting a calling identity of the pair and sending the routable number to the first terminal.

A subscriber information authentication system that compares network-obtained and device-obtained information to verify that a device being used in connection with a user account is authenticated for that account. Certain subscriber information may be associated with the account during a registration process. In subsequent attempts to access the account, the registered subscriber information may be used in conjunction with information obtained from a telecommunication network and from a device to verify that the device is authorized. The information from the telecommunication network may be queried using Signaling System No. 7 (“SS7”) protocols. The device authorization may be performed, for example, to ensure that a device being used for device-based verification is the device a user purports it to be.

Systems and methods are disclosed for client-based control of revising caller identifications (IDs) for communications between a private network and a public network. An apparatus including a communications provider server and processing circuit that communicates client-specific sets of data over an interface protocol. The telecommunications-providing server revises a caller ID for a call based on the client-specific sets of data, an identifier that corresponds to a requesting endpoint, and a geographic region determined from the call request. Further, the telecommunications-providing server connects the VoIP call by accessing and passing a provisioned number. The provisioned number includes the revised caller ID which is a local number identified by the determined geographic region that the endpoint is located.

A subscriber information authentication system that compares network-obtained and device-obtained information to verify that a device being used in connection with a user account is authenticated for that account. Certain subscriber information may be associated with the account during a registration process. In subsequent attempts to access the account, the registered subscriber information may be used in conjunction with information obtained from a telecommunication network and from a device to verify that the device is authorized. The information from the telecommunication network may be queried using Signaling System No. 7 (“SS7”) protocols. The device authorization may be performed, for example, to ensure that a device being used for device-based verification is the device a user purports it to be.

According to one aspect, a system and method of exchanging GRUUs (Globally Routed User Agent URI (Uniform Resource Identifier)) between a first telephony-enabled device and a second telephony enabled device using a circuit-switched message is provided. Once exchanged, the telephony enabled devices can exchange SIP (session initiated protocol) communications routed by the GRUUs. Any one of the telephony-enabled devices can add a media component to the SIP communications. According to another aspect, a system and method of generating GRUUs is provided. According to another aspect, a system and method of handing off communications to a packet switched network from a circuit switched network is provided.

In one embodiment, the method of processing telephony sessions includes: communicating with an application server using an application layer protocol; processing telephony instructions with a call router; and creating call router resources accessible through a call router Application Programming Interface (API). In another embodiment, the system for processing telephony sessions includes: a call router, a URI for an application server, a telephony instruction executed by the call router, and a call router API resource.