Call routing logic seemed to work once I figured out their key + secret + private-key-for-each-developer-app (?!?) authentication.
I write this review while I'm waiting on the latest response from Andy Li, in a 6-hour-long nexmo support email thread. I just want to give them money (they only allow you to add money in 10-euro increments -- you have to email support to change that amount, or to set up automatic payments). They apparently require you to answer several questions about who you are and what you plan to use nexmo for, before they remove payment restrictions. At no point during their onboarding documentation do they say you'll be held up for hours waiting on permission to give them money easily.
This is ridiculous -- I don't know of any competitor who puts this kind of friction in front of you giving them your money:
"At Nexmo we like to take good care of our customers, and there are several measures in place to protect our customers’ identities and our own platform from inappropriate use, of which the top-up limit is one. In particular, if you could share the following it will allow us to remove the limitation from your account more quickly:
Company/service web address
Nexmo services you intend to use
Geographies in which you intend to use these services
Content type you expect to be sending and in what volumes
Social Media content that links you to your company, e.g. LinkedIn page link"
Take a hard look at the billing page before diving too deeply in. It's not like they'll just let you pay $100 and you can start using that credit. You have to pay in 10 euro increments! Or maybe you'll end up stuck in several hours of emails like me.
Nothing. Dead in the water. We're moving to a competitor, it looks like.