| 摘要 |
A method for negotiating coding/decoding (CODEC) between a wireless network and a core network in a mobile communication system, comprising: before a call is established, a base station controller informing a mobile switching center server of the voice codec capability of a wireless cell in which a call is originated; the mobile switching center server analyzing and comparing the received voice codec capability of the wireless cell with the voice codec resources of a media gateway to obtain common voice codec types supported by both of the wireless cell and the media gateway; and transmitting the common voice codec types to the base station controller. |
