telecommunication networks / telecommunication services / mobile communication networks / communication services / instant messaging systems / public law / telephony systems / electromagnetic systems / communication network / regular telephone links / mobile communication services / telecommunication facilities networks / telecommunications / telecommunication network / roaming services / /
Organization
Calling party / ITU Administrative Council / RCC / International Court of Justice / International Telecommunication Union / World Health Organization / United Nations / Administrative Council / operating / Regional Commonwealth / /
Position
Secretary-General / the Deputy Secretary-General / Chairman / Secretary-General / Head / /