A codec is introduced, according to a new speech encoding method, into a speech transmitting transceiver of a digital telecommunications system in order to use a "new" codec and an "old" codec in parallel in the system. A codec is selected by implementing a handshaking procedure between transceivers,...http://www.google.fr/patents/US6161085?utm_source=gb-gplus-shareBrevet US6161085 - Method and arrangement for adding a new speech encoding method to an existing telecommunication system
Method and arrangement for adding a new speech encoding method to an ...
