Ah yes, nothing like coming home to a tape full of automated phone lady lecturing you to hang up.
Actually I have one site that still has that problem. It’s a tiny rural hamlet where their phone lines come in from the CO in another tiny rural hamlet via an ancient analog multiplexer. The linecards in the multiplexer don’t support passing the voltage-reversal signal. Telco people asked around within their company trying scrounge up some cards that do, but it’s just too ancient. “Supervisory disconnect dualtone mid-call” helps a little bit, but not until after the phone lady has already given her lecture. -mn From: Wes Sisk (wsisk) [mailto:[email protected]] Sent: June-30-16 4:30 PM To: Norton, Mike <[email protected]> Cc: [email protected]; Ryan Huff <[email protected]> Subject: Re: [cisco-voip] FXO port to Viking C-1000B door entry controller spot on. right up until they invented analog answering machines… then we *HAD* to have analog disconnect supervision. -w On Jun 30, 2016, at 4:25 PM, Norton, Mike <[email protected]<mailto:[email protected]>> wrote: A phone company cannot magically reach into your house and put your POTS phone on-hook. Only you - the person physically holding the POTS phone - can put it on-hook. *This is true regardless of which side initially started the phonecall.*
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