Patent ID: 7444281

Claim:
A method for generating speech packets in a first node of a communication system, the method comprising: providing a first stream of digital speech samples having a first sample rate; determining that the first sample rate of the first stream of digital speech samples does not match a required sample rate; generating a second stream of digital speech samples having an average sampling rate equal to the required sample rate by performing sample rate conversion of the first stream of digital speech samples; generating the speech packets based on the second stream of digital speech samples; wherein said packet generating includes: generating blocks of compressed speech information based on the second stream of digital speech samples; including the generated blocks of compressed speech information in said speech packets; wherein each speech packet is generated to include one block of compressed speech information; and wherein the blocks of compressed speech information are intended for transmission over a circuit switched radio channel and the required sample rate is selected such that the rate of generating speech packets equals the rate at which the blocks of compressed speech information are transmitted over said radio channel.