[VoiceOps] Call delays/PDD IP issues

We are getting reports from Customers that IP phones are registered but cannot make outbound calls, they dial out and then dead air. I am not seeing their call hit our VoIP network (Our Edge Router) . I don't think it's the Customer network either as many customers across the country are reporting it. The issue has subsided over the last 15 mins or so. I was wondering if someone else has seem general IP issues over the internet today affecting their services?