[andy]

Welcome

You are correct about the charging

I haven't seen anything like that on there either. This and other methods are possible with other callback providers, but you have the questions of a maybe higher tariff and also paying for the message.

As you will see, some people here will use a separate phone, some the same one to call the trigger number. Also it is possible to use their webform via wap/gprs on a second phone (no data on Riiing).

One occasional drawback of separate phone trigger call is that the call is charged in some countries, and this is exaggerated by per minute billing for a 2 second incomplete call; this happened to me in Lithuania and Slovakia.

But it is perfectly ok nowadays making the trigger call from the same phone; the original problem of callback too fast and going to voicemail before you could hang up has been sorted by CBW setting a slight delay.