| 2 October 1947 |
1 January 1949 |
International Convention on Telecommunications [With Annexes, Final Protocol of Signature and Additional Protocols] |
| 10 July 1964 |
1 January 1966 |
Agreement Concerning Insured Letters and Boxes [with Final Protocol and Detailed Regulations] |
| 10 July 1964 |
1 January 1966 |
Agreement concerning Postal Parcels [with Final Protocol, Detailed Regulations and Final Protocol thereto] |
| 12 November 1965 |
1 January 1967 |
Optional Additional Protocol to the International Telecommunications Convention, Montreux 1965 Compulsory Settlement of Disputes |