VERFAHREN UND VORRICHTUNG ZUR VERWENDUNG BEI DER STEUERUNG DER DISKONTINUIERLICHEN ÜBERTRAGUNG (DTX) FÜR SPRACHKOMMUNIKATIONEN IN EINEM GENERISCHEN ZUGANGSNETZ

In one illustrative example, a mobile communication device receives, via a generic access network (GAN) from a GAN controller, a message having a discontinuous transmission (DTX) indication. For a voice communication session, the mobile device causes a connection to be established with the GANC, via the GAN and over a wireless communication link with a wireless access point of the GAN, for the communication of voice data of the voice session which is provided via a core network of a mobile telecommunications network. In response to identifying that the DTX indication indicates that the DTX functions are instructed or supported by the GANC, the mobile device causes DTX functions to be performed for the communication of the voice data of the voice session over the wireless link. On the other hand, in response to identifying that the DTX indication fails to indicate that DTX functions are supported or instructed by the GANC, the mobile device refrains from causing the DTX functions to be performed for the communication of the voice data of the voice session over the wireless link. Preferably, the message which carries the DTX indication is a GA-RC REGISTER ACCEPT message or a GA-RC REGISTER UPDATE DOWNLINK message.