Methods for reconstructing missing packets in TTY over voice over IP transmission

摘要: A system for reconstructing missing packets in a packetized audio TTY stream that includes: (a) an input 328 operable to receive plurality of first packets, each comprising one or more tones sequence tones; and (b) processor 332 to: (i) order the packets; (ii) depacketize (iii) determine when tone is from (iv) missing, perform at least following steps: (1) based on portion contained adjacent packet; (2) of(i) random pseudo-random selection, comparison probability associated with character generated substituted second tone, and/or ordering characters library orderings.