项目描述
You need to write a program using any system libraries necessary to maintain SIP telephony protocols.
The program must be able to initialize a call through SIP-telephony, play there an MP3-format audio file, receive the status - listened to completely, the connection break is 5 seconds, the subscriber is not available or the user pressed the number 0 and wants to record a voice message. In the latter case, also return the audio file.
The interface module should be written preferably in Perl or Python.
At the entrance there is a phone number where to call and an audio file.
This is not the only SIP problem, there are more. This can be considered as a successful passage to the next stage.
The program must be able to initialize a call through SIP-telephony, play there an MP3-format audio file, receive the status - listened to completely, the connection break is 5 seconds, the subscriber is not available or the user pressed the number 0 and wants to record a voice message. In the latter case, also return the audio file.
The interface module should be written preferably in Perl or Python.
At the entrance there is a phone number where to call and an audio file.
This is not the only SIP problem, there are more. This can be considered as a successful passage to the next stage.
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