TEST KEY: Yes, two banks charge a pre-agreed special code is sent by the power line when filling in the telegram or telex message in front of the check by the close match power lines, you can verify the authenticity of the telegram or telex.

Micronesia (Federated States : charge prior agreement of the two banks, a dedicated charge by generating line code in sending telegrams or telex messages endorsement in front of the line, the collection of electricity line, you can check the authenticity confirmed telegram or telex.

Telegraphic test key: Is special-purpose test word which two banks agree beforehand, is by the electricity generation line when the transmission telegram or the fax the replenishment in telegram text front, receives the electricity line of checkup match case, then confirms the telegram or the fax au

Test key: there are the two banks agreed private test key is determined by the power line when you send a telegram or telex raise in front of the message, check by your electric line in line, you can confirm the authenticity of the telegrams or telex.

Escort densely: It is two banks that escort codes previously agreed upon and specializedly, annotate from generating electricity to walk while sending the telegram or telex in the front of the text, by accepting the electricity to walk and check that agrees, can confirm the authenticity of the teleg