We have multiple users who are experiencing a fast busy signal when trying to dial outgoing calls. We've been experiencing the issue increasing over the past 2 weeks. It doesn't matter if we use a "ported number" or number exclusive to RC. Also doesn't matter if we use mobile, downloaded or online app. We're under a year in our agreement and getting frustrated with tech support calls that go nowhere; wondering if this is an isolated issue for us or if this is happening to other businesses as well. Thanks for any insights.