ReadyTalk says that "The number 1 enemy of online conferences is poor audio quality", and I agree with that.
When we first released Lucid Meetings, we didn't include support for audio or video conferencing. We figured everyone already had something they used - WebEx most often, or maybe a Freeconferencecall.com number - so we didn't need to worry about that part and could just focus on helping people organize their agendas and capture minutes.
But time after time, we'd get support complaints from people who had trouble running a meeting because the audio failed, begging us to please add audio to Lucid so they could cancel their existing service. Without easier audio, they couldn't run successful online meetings.
So, we began integrating audio conferencing into Lucid. We started with a simple web-only audio feature, but soon found it too limiting. Next, we integrated a full-on conferencing service: toll dialing, toll-free numbers, call recording, international, the works.
Pretty soon we were running meetings that really needed video. We added integrations with Skype, Google Hangouts, and appear.in. Then, our big clients with expensive contracts through Adigo, Verizon and InterCall demanded we support their private conferencing in our meetings, and we added ways to set up custom audio profiles.
Every time we set up a new way to run audio or video conferencing, we'd test it and run into problems. Every time.