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www.voip-info.org/wiki/view/Clipcomm+ATA+and+Gateways

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Posted by crouse

my.safaribooksonline.com/9780596510480/asterisk-CHP-4-SECT-5

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Posted by crouse

Please visit the following website:


http://asterisk.name/asterisk/0596009623/asterisk-chp-4-sect-4.html

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Posted by sagitraz

The difference between an FXO channel and an FXS channel is simply which end of the connection provides the dial tone. An FXO port does not generate a dial tone; it accepts one. A common example is the dial tone provided by your phone company. An FXS port provides both the dial tone and ringing voltage to alert the station user of an inbound call. Both interfaces provide bidirectional communication (i.e., communication that is transmitted and received in both directions simultaneously.

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Posted by james_winston