While missing a call is definitely not a good thing, I'm hesitant to think of it as a "refusal".
HN user
iso27002
Why not aim your anger towards No-IP, given the following?
"Our research revealed that out of all Dynamic DNS providers, No-IP domains are used 93 percent of the time for Bladabindi-Jenxcus infections, which are the most prevalent among the 245 different types of malware currently exploiting No-IP domains. Microsoft has seen more than 7.4 million Bladabindi-Jenxcus detections over the past 12 months, which doesn’t account for detections by other anti-virus providers. Despite numerous reports by the security community on No-IP domain abuse, the company has not taken sufficient steps to correct, remedy, prevent or control the abuse or help keep its domains safe from malicious activity." http://blogs.microsoft.com/blog/2014/06/30/microsoft-takes-o...