Guys,
Just discovered a little issue with my new VoIP telephone enabled Router which has sort-of stuffed me a bit.
Whereas an Echange, on caller hang up, will drop the line current for a second my clever VoIP Router doesn't. Instead, on caller hang up it generates a tone which now needs detecting.
My original in-call detection was to use a relay coil as part of the current sink load and watch the contacts change over and managed by a separate executable fired off as a fork() process that answered the call.
Seems I need to go think about this one. Basically the VoIP actually relies on the human detecting the caller has hung up based on the new loud tone in his ear.
(584)
Just discovered a little issue with my new VoIP telephone enabled Router which has sort-of stuffed me a bit.
Whereas an Echange, on caller hang up, will drop the line current for a second my clever VoIP Router doesn't. Instead, on caller hang up it generates a tone which now needs detecting.
My original in-call detection was to use a relay coil as part of the current sink load and watch the contacts change over and managed by a separate executable fired off as a fork() process that answered the call.
Seems I need to go think about this one. Basically the VoIP actually relies on the human detecting the caller has hung up based on the new loud tone in his ear.
(584)
Statistics: Posted by RaspISteve — Thu Aug 07, 2025 1:54 pm