A telecommunication system and a method for transferring media data from a first client over a QoS-sensitive network to a second client. The system and method can permit media data, which contain a first media type with a first traffic class and a second media type with a second traffic class to be bundled by the first client into second packets. In each second packet, the traffic class for each media type is marked in layer 4 and/or layer 5. The second packets can be transmitted toward the second client. Either before or during the transfer to the network, the second packets can be unbundled using the markings in layer 4 and/or layer 5 and then bundled into first packets, each of which has only one of the traffic classes. At least some of the first packets can then be transmitted over the network to the second client.

The invention relates to a method of processing sensitive information over VoIP. The method provides a method of processing, by a call processor, a media call comprising the steps of: receiving a first signalling stream from a first entity; creating a second signalling stream to a second entity; forwarding signals received from the first signalling stream to the second signalling stream; receiving a third signalling stream from the second entity; creating a fourth signalling stream to the first entity; and forwarding signals received on the third signalling stream to the fourth signalling stream; the first signalling stream containing instructions to set up a media call between the first entity and the second entity such that media is transmitted over a first media stream from the first entity to the second entity and a media is transmitted over a second media stream from the second entity to the first entity without intervention by said call processor.

Systems, methods, apparatuses, and computer program products for providing IMS level awareness of high latency device are provided. One method, when a UE attaches to EPC, receiving, at a network node, an indication that the UE is a high latency device. The method may also include assigning, to the UE, an IP address selected from a special IP address range that is designated specifically for high latency devices. When the UE performs IMS registration, the method may include determining that the UE is a high latency UE based on the UE's IP address provided with the IMS registration request and assigned during the EPC attach procedure.

A system and method of communication, comprising establishing a first connection between the user equipment and a first non-public packet switched network which assigns a first non-public packet switched network address to user equipment; establishing an open signaling channel which communicates between the user equipment and a remote server through a cellular telephone network according to a public switched telephone network address associated with an International mobile subscriber identity; communicating an identification of the first non-public network and the first non-public packet switched network address over the open signaling channel to the remote server; and establishing a real time voice communication from the remote server to the user equipment through the first connection based on a call routed through the remote server to the public switched telephone network address.

A first invite message including a parent device identifier assigned to a parent device is received. The first invite message refers to an incoming call or an outgoing call. The incoming call or the outgoing call are then routed between a parent telephony application server (TAS) allocated to the parent device and a child TAS allocated to a child device. In some cases, the child device is a mobile child device that is registered with an Internet Protocol (IP) multimedia subsystem (IMS) network using a unique identifier that is associated with a child device identifier assigned to the mobile child device. The parent TAS is able to store the child device identifier and the child TAS is able to store the parent device identifier.

Embodiments provide systems and methods for exchanging media through an edge server between different communication networks. More specifically, embodiments of the present disclosure provide systems and methods for establishing and conducting voice and/or video communications between one or more parties on a private network, such as within an enterprise, and one or more parties on a different network such as another private network or an open network such as the Internet using an edge server of the enterprise network. This edge server, also referred to herein as a Session Border Controller (SBC), can be adapted to allow media packets to traverse through a port typically kept open by enterprise firewalls and used for other data exchanges such as HyperText Transfer Protocol (HTTP) data traffic. The SBC can also provide multiplexing and demultiplexing of media streams through the same port and address to traverse firewalls between the different communication networks.

Controlled-environment communication systems are increasingly using voice over internet protocol (VoIP) to serve their users. VoIP allows voice to be sent in packetized form, where audio is encoded using one of several codecs. Because of bandwidth constraints, particularly during peak call times, codecs may be used which sacrifice audio quality for bandwidth efficiency. As a result, several features of communication systems, including critical security features. The present disclosure provides details for systems and methods by which a controlled-environment communication system may shift between codecs to perform security-related features or to alleviate bandwidth considerations. This involves the special formatting of control-signaling messages, including session initiation protocol (SIP) and session description protocol (SDP) messaging.

A method for real-time-capable data transmission between two networks includes a first real-time-capable communication system having a first real-time mechanism for real-time-capable data transmission set up in a first network. A second real-time-capable communication system having a second real-time mechanism for real-time-capable data transmission is set up in a second network. The first network and the second network are connected to one another via a mapping module which reciprocally maps the first real-time mechanism of the first real-time-capable communication system and the second real-time mechanism of the second real-time-capable communication system to one another. For real-time-capable data transmission from one of the two networks to the other of the two networks, a data packet is transmitted in the one of the two networks according to the real-time mechanism of the real-time-capable communication system set up in the network.

Disclosed are an IMS user registration method and device. The method comprises: after an HSS receives a registration request of a user terminal having no authentication data, acquiring configuration information of the user terminal; obtaining an authentication verification code ResponseHSS by using a random number and an attribute identifier of the user terminal, wherein the attribute identifier comprises an IMSI, an IMEI and an IMS identifier; sending the random number to the user terminal, and receiving a response verification code Response fed back by the user terminal; and determining whether the Response is the same as the ResponseHSS, and if so, sending the registration request to an application server to carry out registration of the user terminal. The technical problem in the prior art of greatly affecting the security of an enterprise network due to the fact that a device used by an IMS user cannot be controlled is solved.

The present system and method uses a timer at a higher level, closer to the physical layer, to avoid software errors and the like from delaying messages and allowing the timer to expire inadvertently.