Abstract: The invention relates to method applicable in a packet-switched cellular network for voice connections, by which method a new dedicated channel can be established quickly using the existing dedicated channel of the voice connection. The establishment of the new dedicated channel utilizes the previous dedicated channel the existence of which is extended by sending to at least the receiving terminals post-speech packets according to the invention. The post-speech packets produce a 2-second delay, approximately, which is sufficient to establish a new dedicated channel between terminals participating in a session.

Abstract: A communication method, a mobile terminal and a computer program are provided. According to the invention, data streaming communication is performed to the mobile terminal, a communication connection request message is received from the network infrastructure in the mobile terminal, the reception of the communication connection request is indicated to a user of the mobile terminal, a first mode change command generated by the user is received in the mobile terminal, suspension of the data streaming communication is requested for on the basis of the first mode change command, and the communication connection is accepted on the basis of the first mode change command.

Abstract: The invention relates to a method and subscriber equipment of controlling transmission power in the transmitter. The subscriber equipment transmits bursts with different activity. The subscriber equipment forms an average activity of the transmitter, and controls transmission power of the bursts as a function of the average activity of the transmitter.

Abstract: The invention relates to a method for ensuring the adequacy of transmission capacity in a digital packet-switched cellular network where both voice sample packets and associated header fields are transmitted in real time in one and the same transmission channel. The invention also relates to a terminal employing the method. In the method, the contents of voice sample packets at the beginning of a speech spurt are partly replaced by packet header field data in situations where the combined bit count of voice sample data and packet header data exceeds the transmission capacity of the transmission channel.

Abstract: The invention relates to a protocol converter (14) and a method utilizing the converter, enabling a wireless connection (13) between a cellular network (11) and a terminal to apply a reduced RTP protocol according to the invention, instead of the RFC 1889 protocol, in order to save communications capacity on speech connections.