A nurse call system that enables a call for a nurse from anywhere in a hospital ward while a patient carries a mobile phone is provided. The nurse call system includes a plurality of patient mobile phones 10 are carried by hospitalized patients and connected to a controller 8 via a base station 12 as with nurse mobile phones 9, and each patient mobile phone 10 has a hospital room ID and a nurse call slave device ID registered therein for recognizing a bed location of the patient carrying the patient mobile phone 10, thus enabling a nurse call operation for transmitting a call signal with the hospital room ID and the slave device ID added thereto, to the nurse call master device 7 and at least one of the nurse mobile phones 9, through a predetermined operation.

In accordance with one aspect of the invention, a process for handling emergency calls from a caller in a voice over IP system is described. The process involves receiving a routing request message including a caller identifier and a callee identifier. The process also involves setting an emergency call flag active in response to the callee identifier matching an emergency call identifier pre-associated with the caller. The process further involves producing an emergency response center identifier in response to the emergency call identifier. The process also involves determining whether the caller identifier is associated with a pre-associated direct inward dialing (DID) identifier. The process further involves producing a direct inward dialing (DID) identifier for the caller by associating a temporary DID identifier with the caller identifier when the emergency call flag is active and it is determined that the caller has no pre-associated DID. The process also involves producing a routing message including the emergency response center identifier and the temporary DID identifier for receipt by a routing controller operable to cause a route to be established between the caller and the emergency response center.

System and procedure for real-time hybrid VoIP connections between a web page or a mobile application that has implemented a Front-end and a Back-end connected via a communication channel or interface, and at least one automatic private branch exchange (PBX), with DDI (Direct Dialing Inward) functionality and connection to the public switched telephone network (PSTN) in charge of orchestrating the communication and enabling access through at least the PSTN and VoIP protocols.

A method for originating and terminating services in a unified communication platform is provided. The method includes receiving, from a local market intermediate carrier, a request for a communication between a subscriber of a public network and an end-user endpoint in a local network, associated with an end-user phone number. The method includes creating a lease for an address anchor in a pool of addresses, receiving, in a proxy server from a carrier gateway server, a communication request from the end-user phone number to the address anchor, and establishing a communication channel to the address anchor. The method includes replacing, in the communication channel, a from header with a phone number of the subscriber of the public network, and a to header with the end-user phone number. A system and a non-transitory, computer-readable medium storing instructions to perform the above method are also provided.

A nurse call system that enables a call for a nurse from anywhere in a hospital ward while a patient carries a mobile phone is provided. The nurse call system includes a plurality of patient mobile phones 10 are carried by hospitalized patients and connected to a controller 8 via a base station 12 as with nurse mobile phones 9, and each patient mobile phone 10 has a hospital room ID and a nurse call slave device ID registered therein for recognizing a bed location of the patient carrying the patient mobile phone 10, thus enabling a nurse call operation for transmitting a call signal with the hospital room ID and the slave device ID added thereto, to the nurse call master device 7 and at least one of the nurse mobile phones 9, through a predetermined operation.

A method for originating and terminating services in a unified communication platform is provided. The method includes receiving, from a local market intermediate carrier, a request for a communication between a subscriber of a public network and an end-user endpoint in a local network, associated with an end-user phone number. The method includes creating a lease for an address anchor in a pool of addresses, receiving, in a proxy server from a carrier gateway server, a communication request from the end-user phone number to the address anchor, and establishing a communication channel to the address anchor. The method includes replacing, in the communication channel, a from header with a phone number of the subscriber of the public network, and a to header with the end-user phone number. A system and a non-transitory, computer-readable medium storing instructions to perform the above method are also provided.

Embodiments of the present systems and methods may provide PBX functionality with mobile calling devices, such as cell phones. Embodiments may provide, for example, PBX functionality without the need to use land line (VoIP or PSTN, or any other) phones. For example, in an embodiment, a method of call completion may comprise receiving an indication of a called party phone to be dialed at a mobile device, determining, at the mobile device, whether the indication refers to an extension number of a private branch exchange or to a phone number in the public switched telephone network, and when the indication refers to an extension number of a private branch exchange dialing, at the mobile device, at least a phone number in the public switched telephone network in order to complete a call to the indicated called party phone.

A messaging hub provides communication services for user devices associated with an enterprise office telephone number. The messaging hub establishes a secure connection between the messaging hub local SMSC/MMSC and a data adapter of a unified communications service, provision the enterprise office telephone number for use in a global SMS/MMS network and delivers messages addressed to the enterprise office telephone number to selected user devices.

A multi-tenant management service (MTMS) can be configured to receive a plurality of requests for a multi-tenant service from a plurality of tenants. A given and another of the plurality of tenants can have a resource object (RO) with the same dialable number (DN) assigned thereto. The MTMS can also be configured to generate a federated dial plan for each of the plurality of tenants. Each federated dial plan can include a system identifier (ID) and a corresponding DN for each RO associated a respective tenant. The MTMS can further be configured to provide a federated DN corresponding to the multi-tenant service to each of the plurality of tenants.

In accordance with one aspect of the invention, a process for handling emergency calls from a caller in a voice over IP system is described. The process involves receiving a routing request message including a caller identifier and a callee identifier. The process also involves setting an emergency call flag active in response to the callee identifier matching an emergency call identifier pre-associated with the caller. The process further involves producing an emergency response center identifier in response to the emergency call identifier. The process also involves determining whether the caller identifier is associated with a pre-associated direct inward dialing (DID) identifier. The process further involves producing a direct inward dialing (DID) identifier for the caller by associating a temporary DID identifier with the caller identifier when the emergency call flag is active and it is determined that the caller has no pre-associated DID. The process also involves producing a routing message including the emergency response center identifier and the temporary DID identifier for receipt by a routing controller operable to cause a route to be established between the caller and the emergency response center.