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<BR>Thanx alot for reply <BR>
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I mean i have to use the fxo to connect to the pstn line and i do not know if there is any asterisk functions ,Application, options that could help to know what is the real call duration [ how to deal with pstn line signaling how to detect the pstn ringing tone or pstn auto-machinese voice message in case if the user did not answer the call ] , i saw some billing software and i am not sure if they are calculating the bills using cdr in case of using fxo. <BR>
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thank u in advance <BR>
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