Method and apparatus for a fast installation of an IP user connection over a 3GPP NB interface under application of the bICC “delayed backward bearer establishment” and avoidance of failure

An apparatus that establishes an IP user data transport connection by means of a processor, wherein

• a Bearer Independent Call Control “Delayed Backward Bearer Establishment” is controlled by the processor and employed between a network entity Media Gateway O and a network entity Media Gateway T within an IP network,
• an IP Bearer Control Protocol Accepted message is sent from the Media Gateway O towards the Media Gateway T controlled by the processor,
• packet(s) are sent within a user data transport connection controlled by the processor towards the Media Gateway T,
• a source IP address and Port number are retrieved by the Media Gateway T from a user data transport connection IP packet received from the Media Gateway O controlled by the processor,
• first user data transport connection IP packet(s) are sent towards the Media Gateway O by the Media Gateway T upon receipt of the user data transport connection IP packet from the Media Gateway O controlled by the processor;
• and
• the retrieved IP Address and Port number are used as a destination.