Re: Как можно проиграть файл по SIP в предответном состоянии?
Не, приведенный вариант один из. Вообще команда Playback сама дает SIP OK, так что в предварительном ответе канала не нуждается. По вопросу:
Options
skip: Play the sound file only if the channel has already been answered. If the channel has not yet been answered, the Playback command will return immediately without playing anything.
noanswer: Play the sound file, but don't answer the channel first (if hasn't been answered already). Not all channels support playing messages while still on hook.
j: If option is specified, the application will jump to priority n+101 if present when a file specified to be played does not exist.