You should be slightly careful about that.

I saw a User's Group presentation by a guy at Speakeasy, they had made a whole logistic system that looked a lot like a CRM manager but not for customers, for dealing with how flaky Covad was at the time. Covad only had to be less shitty than Qwest (who we called, "Qworst", because if you hadn't dealt with Covad, they were the worst) and they couldn't even manage that.

So if Covad promised to have some line work done by 10 am on Tuesday, the SE techs would get a reminder to verify in had been completed shortly after the deadline so they could call Covad before the customer noticed the install was behind schedule and ask why it hadn't been done by the deadline. Otherwise SE was telling people they'd have Internet in 4 business days and it would be more like 10 - on average.

Around the time Qworst became CenturyLink, Covad bought SpeakEasy, for a net loss of beauty in the world.