Adjustment of a jitter memory

For performance of enhanced adaptive vibration buffer; and parameter to receive the expectation adjusting number of by vibration buffer by using delay estimation the first base device. The delay at least comprises a conversation end-to-end delay on at least one direction. The talks over telephone, voice signal via packet-switched network, further in form of grouping between the first device and second device for sending. Adhesive based on by adjusting quantity to receive to the vibration buffer adjustment.