You can change your dialplan to drop the + (or the +1 depending upon your outbound dial plan); this will allow you to redial.Thought I'd do a refresh on TelecomsXchange here. I've been using the service for about a year. It's pretty dang good.
You have to watch the providers for price changes. I'm signed up with Ward's offer, which gets you on the platform for free, but there is a 13% fee on your deposit. That may seem like a lot, however, the wholesale rates are SO low. For a CLI Route for NA Numbers, I'm paying $0.000938 per minute. With a 13% premium, that is still $0.00105994 per minute! (Sellers is TollFreeDollars). CLI has been very accurate. Call quality is absolutely perfect. TCXC-CLI is also very good, but they are reselling foreign carriers, and caller ID for US calls shows up like +1603NXXXXXX, and calling somebody back does not work!! No such issues with TFD. I also buy Nexmo DIDs from TCXC. The cost is lower than Nexmo direct, and there is no metering on inbound calls. So, I have to highly recommend TelecomsXchange. Ward's sign-up link is here: https://www.telecomsxchange.com/nerdvittles/
Andrew