Lexcom Posted February 20, 2012 Report Share Posted February 20, 2012 I have a new Grandstream HT503. Has anyone configured one of these for using/accessing an existing analog phone line? Any help would be greatly appreciated. The FXO port is the one of primary concern, but I would like to configure the FXS port for using an older Polycom conference phone. Quote Link to comment Share on other sites More sharing options...
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