Posted: Wed May 27, 2009 6:31 am Post subject: [asterisk-dev] ChanIsAvail: No AVAILCHAN when channel is in
When the channel is in any state > 1 , i.e. up and connected, the value of the relevant channel variables is as follows:-AVAILCHAN=""
AVAILORIGCHAN=""
AVAILSTATUS=(the enumerated value corrosponding to the state)
enum ast_channel_state { AST_STATE_DOWN, /*!< Channel is down and available */ AST_STATE_RESERVED, /*!< Channel is down, but reserved */ AST_STATE_OFFHOOK, /*!< Channel is off hook */ AST_STATE_DIALING, /*!< Digits (or equivalent) have been dialed */ AST_STATE_RING, /*!< Line is ringing */ AST_STATE_RINGING, /*!< Remote end is ringing */ AST_STATE_UP, /*!< Line is up */ AST_STATE_BUSY, /*!< Line is busy */ AST_STATE_DIALING_OFFHOOK, /*!< Digits (or equivalent) have been dialed while offhook */ AST_STATE_PRERING, /*!< Channel has detected an incoming call and is waiting for ring */ AST_STATE_MUTE = (1 << 16), /*!< Do not transmit voice data */};
Looking at the code, the application does not set the AVAILCHAN & AVAILORIGCHAN channel variables (tmp_availchan and tmp_availorig) when the state is > 1
Any clues why its been done so?
For reference:-
host123f4a*CLI> core show application ChanIsAvailhost123f4a*CLI> -= Info about application 'ChanIsAvail' =-[Synopsis] Check channel availability[Description] ChanIsAvail(Technology/resource[&Technology2/resource2...][,options]):This application will check to see if any of the specified channels are available. Options: a - Check for all available channels, not only the first one. s - Consider the channel unavailable if the channel is in use at all. t - Simply checks if specified channels exist in the channel list (implies option s). This application sets the following channel variable upon completion: AVAILCHAN - the name of the available channel, if one exists AVAILORIGCHAN - the canonical channel name that was used to create the channel AVAILSTATUS - the status code for the available channel
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