What are the calling services?

Question

Telephony

I am making an SMS bomber, but which one is calling, what services are there?

Answer 1

much less + slaughtered by country

Answer 2

RewriteRule ^ru/(.+) /$1 [R=301,L]

more or less like this

Answer 3

Everything is as described by Urvin, I would also add the QSA flag just in case.