Rich Adamson wrote: >> Is it possible to do a talk battery polarity reversal on a TDM400P >> FXS interface? Everything I can find seems to be referring to the >> procedure for detecting a battery reversal on a telephone company >> POTS line using the FXO interface, but not for actually generating >> one back to a station upon answer supervision. I would assume that >> VoicePulse and VoipJet provide a way of signaling far-end >> supervision back to the originating Asterisk PBX... >> >> Basically, my two questions are: >> (1) Is the hardware capable of even performing a reversal? >> (2) If the above is true, how would you make it happen in Asterisk? > > The Silicon Labs spec sheet does not specifically indicate generating > a reversal is possible. Therefore, best guess is the integrated > circuits on the card does not support it, therefore asterisk has no > means of doing it. >
Specs for Si3210 (TDM400P FXS Module) says on page 93: --- Register 72. On-Hook Line Voltage Bit 6 VSGN On-Hook Line Voltage. The value written to this bit sets the on-hook line voltage polarity (VTIP–VRING). 0 = VTIP–VRING is positive 1 = VTIP–VRING is negative --- I wonder if this can control Pol-Rev's.. ? /Soren _______________________________________________ Asterisk-Users mailing list [EMAIL PROTECTED] http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
