Our engineers are aware of this and looking into the issue. At this time, please open a support case and in your case notes include the following:
1. Parent Case: 04572195
2. The name of your ISP
3. Call sample with time, phone numbers
4. Please also perform a tracert, and attach a screenshot to your case notes.
How do I run a Traceroute ?
UPDATE: 4/22/16 2:20 pm MDT This issue has now been resolved.