I am investigating
viber.com The function you need for international calling is called Viber Out. Unlimited talk time to the U.S.A. is $1.99 per month to any mobile or landline phone. The recipient need not have a Viber account. THE GOOD. Per Wikipedia for "Viber." The company is called Rakuten Viber. It is now Japanese owned and it has a 15 year history. It was originally an Israeli startup located in Cyprus. It's a robust and worldwide service used by millions in many countries. I read nothing that would give me pause. THE BAD. You have to pay BEFORE you create an account. On the positive side, I received a detailed receipt to my email with a purchase number, etc. Further, the payment was only $1.99, auto-billed monthly. On the negative side, and this is a BIG negative, when you create an account, it is not the usual process of registration. The process to create an account begins with entering your Dom. Rep. phone number. Mine is Altice on an iPhone. THE NUMBER WAS REJECTED WITH AN ERROR MESSAGE. I entered it multiple times on different browsers = FAIL. This means that I HAVE PAID, HAVE NO ACCOUNT, AND CANNOT MAKE A SINGLE PHONE CALL. That's bad. Next comes finding Viber Support. You get the usual generic articles that have nothing to do with your problem. How to contact a human? Just by luck I found out: Select any article from the Support option (scroll down on the homepage). Scroll down to the bottom of the article and click on the message that says, paraphrasing, "This article was not helpful." That opens up a form to contact Support. It's a nicely done form with fields for a lot of detail, including your purchase number (which you can get from your email). It asks to attach a screenshot. I made a screenshot, and went to attach it but NO attachment mechanism--I added that to my complaint.
Where from here? I do NOT want a refund. I want the service to WORK. I will continue to troubleshoot. While waitng for a response, I have something else to investigate. Although I have a SIM card and a phone number I have never made a phone call in years. I use the phone for Internet only and I use Skype for phone calls. It could be that the problem is on my end, that I am not set up with a calling plan. I don't know. I've had BAD service with Altice. I think I'll take my Android smartphone to the central office of Claro in Santo Domingo and explain the problem in advance. Then after getting set up with a SIM card and plan (this phone does not have a SIM card), I'll try the Viber setup at the Claro office and if it fails, see if they can troubleshoot it.
Come on now, brave folk, anyone else want to try this and see if your number works?? If it does, Viber could be the ticket. If it doesn't, then you have the same problem I do and we need to know that.