Since Buddhism denies the existence of a separate self, as explicated in the teachings of anatman and sunyata, self-realization is a contradictio in terminis for Buddhism.
If you are calling from other country than Thailand to the Bangkok area, dial IDD of your country, then international phone number (country code) +66, after that phone area code of Bangkok 2 and call number. +66 - 2 (Telephone number).
The official currency in Bangkok Thailand is Baht (THB). Even though, the Thai language is the most widely used language of Bangkok, the immigration of various non-Thai communities has led to the penetration of many other languages in the place.