4 ms·
Over the regular phone network?
by hucker 11y ago
Over the regular phone network?
- doctorshady 11y agoMost phones have a three-way calling feature. With most cell phones, it's done via the switching equipment rather than the cell phone itself to avoid generational loss from the mobile codec/reception issues. You can string a bunch of three-wayed calls together if you want. The switching equipment itself also has some pretty interesting conference related features. There's a line of equipment called the DMS-100 that's pretty popular for wireline stuff. It has a function where it'll pretend a conference bridge is a ringing number when it's empty. When someone else gets on, it'll play a short burst of ringtone to indicate it, and conference together quite a few people. AT&T runs one of these in the bay area; 415-274-0001.