Element 7: GMDSS Radio Operating Practices

effective 8/01/2006

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7-A-071: Two-igit Operating Codes

7-71I1: What is the Inmarsat-B Service Code for automatic service?

00

10

11

01



7-71I2: What keyboard entry is used, after entering the shore ID, to obtain the assistance of the international telephone operator in the Inmarsat-B service?

11#

00#

01#

10#



7-71I3: What must be entered, after the Shore I.D. and "#" sign is entered and a ring-back tone is heard, to obtain the assistance of the national telephone operator in the Inmarsat-B service?

13#

00#

01#

10#



7-71I4: What is the Inmarsat-B service code for the international telephone information operator?

12#

11+

13#

36#



7-71I5: How would a Radio Operator of a vessel off the California Coast request Inmarsat Operator Assistance from the shore station via TELEX?

Type 11+ after receiving the GA+ from the LES Operator.

Dial 11# on the keypad after receiving the "bong" tone.

Type 00+ after receiving the GA+ from the LES Operator.

Type 001 after receiving the GA+ from the LES Operator.



7-71I6: What dial sequence is used, after entering the shore ID, to place a call that will be billed to a credit card?

36#

The digits 00 followed by the country code, the credit card number, the expiration date and ending with the "#" sign.

Credit card billing is impossible via Inmarsat.

The Shore I.D. and "#" sign followed by the digits 00, then the Country Code, subscriber's number and ending with the "#" sign.





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7-A-070: INMARSAT-B Addressing/Dialing Sequence TELEX
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Element 7: GMDSS Radio Operating Practices
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7-A-072: INMARSAT-C: Addressing to Ship TELEX