| 摘要 |
FIELD: physics, communication. ^ SUBSTANCE: invention is related to systems for establishment of call session with switching between reception and transmission (PTT) over cellular communication (PoC). In method, when response mode of PoC-server and PoC-client do not match each other, error message is sent to receiving PoC-server. Moreover, processing of PoC-call is improved by insertion of new data field, which indicates automatic response of server, into working data of transmission control protocol message (RTCP), and functional resources of terminal are expanded with the help of additional data field, when response modes of appropriate PoC-server and PoC-client do not match each other, which is technical result. ^ EFFECT: improvement of PoC-call processing and expansion of terminal functional resources. ^ 36 cl, 8 dwg, 2 tbl |
