NETWORK NODE AND COMMUNICATION METHOD

摘要

A network node whereby there is no loss of communication quality and the call interruption time can be shortened to continue communication even when the codec used by one terminal during communication changes. In MSC/MGW (110) for forwarding data between two terminals when one of the two terminals performing communication in a first network transfers to a second network different from the first network, codec detector (804) detects both a first codec used by one terminal in the first network and a second codec used by one terminal in the second network. When the first codec is a codec having a mode compatible with the second codec, RTP payload generator (808) switches the codec of data transmitted from one terminal to the compatible mode of the first codec, thereby generating data for the other terminal, and transmitter (802) transmits the data for the other terminal to the other terminal.

主权项

1. A network node that transfers, when one of two terminals performing communication in a first network performs handover to a second network that is different from the first network, data between the two terminals, the network node comprising:
a detection section that detects a first codec used by the one of the two terminals in the first network and a second codec to be used by the one of the two terminals in the second network; a generating section that generates, when the first codec is a codec having a compatible mode that is compatible with the second codec, data for the other one of the two terminals by switching a codec of data transmitted from the one of the two terminals to the compatible mode of the first codec; and a transmitting section that transmits data for the other one of the two terminals to the other one of the two terminals.